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de-obfuscating the statistics of mass shootings
| isn't the fact that norway appears near the top of this list only due to a single incident with a large number of victims, i.e. <link> which skews the statistics. this is what he means when discussing small-n statistics being meaningless. | this brings up more questions than answers in my mind. do we care about mass killings, or whatever is qualified as a "rampage shooting"?for example, mexico has 1 "rampage shooting" in the data referenced in the article. yet you have cartels killing dozens of people on a regular basis. the question in my mind is that if we don't have lots of "rampage shootings" in countries with lots of access to weapons, why does the us have so many? why aren't developing countries with ubiquitous ak-47s experiencing this phenomenon? |
de-obfuscating the statistics of mass shootings
| this brings up more questions than answers in my mind. do we care about mass killings, or whatever is qualified as a "rampage shooting"?for example, mexico has 1 "rampage shooting" in the data referenced in the article. yet you have cartels killing dozens of people on a regular basis. the question in my mind is that if we don't have lots of "rampage shootings" in countries with lots of access to weapons, why does the us have so many? why aren't developing countries with ubiquitous ak-47s experiencing this phenomenon? | interest groups lying with statistics is a specific example of confirmation bias. it's sadly so prevalent that i generally assume that any statistics i find are intended to lead me in a particular direction.i am skeptical of the final implication of the blog entry, that improved gun-safety legislation would solve this issue. for someone taking such a strong approach to statistics, it's a shame that they focus on only one facet of such a complicated situation. american culture, mental health treatments, social programs, and gun laws are all different from most other countries on their list - it seems disingenuous to mention only the last. |
de-obfuscating the statistics of mass shootings
| interest groups lying with statistics is a specific example of confirmation bias. it's sadly so prevalent that i generally assume that any statistics i find are intended to lead me in a particular direction.i am skeptical of the final implication of the blog entry, that improved gun-safety legislation would solve this issue. for someone taking such a strong approach to statistics, it's a shame that they focus on only one facet of such a complicated situation. american culture, mental health treatments, social programs, and gun laws are all different from most other countries on their list - it seems disingenuous to mention only the last. | i would be interested in seeing the data correlating ssri drugs to mass shootings statistically analysed so neatly |
de-obfuscating the statistics of mass shootings
| i would be interested in seeing the data correlating ssri drugs to mass shootings statistically analysed so neatly | spree killings/mass murders/rampage shooters/whatever are all a canard anyway. a canary in the coal mine. add up all the spree killers in the us and they'll not break 1% of the murders. just like the debate over automatic weapons is a canard, since they're very rarely used in murders.the us has a murder problem. it's murder rate is four times that of it's industrialised contemporaries. most of those murders (~75%) are done with firearms, and most of those (>75%, can't recall exactly) are done with handguns. and by someone who knows the victim closely.the stereotype of the inner-city gangsta gunning down a gangland enemy with an automatic weapon is an outlier. and the same is true of the spree killer. as long as debates on either side center on these kinds of outliers, little will be achieved. the murder rate isn't going to be affected by open carry, since most murders aren't of strangers. and banning automatic rifles isn't going to do anything either, because it's handguns that do the dirty work.the problem is that these details aren't sensationalist. being gunned down by a stranger on a rampage makes the news. being killed by a crazy relative doesn't. |
fix reddit with bitcoin
| i've done some thinking on this problem, but my own implementation (peernews) is sort of stuck in place because i lost interest.that said, if "p2p reddit" sounds interesting to you, i'd love your feedback on this rough spec document.<link> design takes advantage of the p2p nature of the network to customize content to the person reading. using friends and de-friends (hates? unloves?), you would form your own trust weighting for people's upvotes, thus forming a network of cliques where everybody can read the same content, but sorted differently according to their interests. | author here. ama. happy to work out the details of how this would work if anyone would like to see. it takes a little more than just "bitcoin" - you don't want most transactions to be on the blockchain, for instance. instead, we would do what streamium did, which is to use payment channels. that will allow for tiny payments.also, how the hosting and sharing of content works requires a lot of effort. we can use web rtc to do the p2p communication over the web. most people don't yet know this exists - but p2p communication over the web is indeed possible. the only catch is that you need a rendezvous server. that server would be run by anybody, so the network would be two tiered - the simple-to-use web clients that share content but don't provide the rendezvous service. then the "full nodes" where the users would also run a rendezvous service, allowing people to find each other.to most users it would look and feel similar to reddit. anyone would be able to run a "business" by just running the "full node" app full-time and delivering the content to users.of course there's a lot more to it than this. i've solved many of the problems, but not all, and there is no prototype yet. but i believe the fundamental technology now exists to create a decentralized reddit, where the users get paid for hosting the system and providing the content. |
fix reddit with bitcoin
| author here. ama. happy to work out the details of how this would work if anyone would like to see. it takes a little more than just "bitcoin" - you don't want most transactions to be on the blockchain, for instance. instead, we would do what streamium did, which is to use payment channels. that will allow for tiny payments.also, how the hosting and sharing of content works requires a lot of effort. we can use web rtc to do the p2p communication over the web. most people don't yet know this exists - but p2p communication over the web is indeed possible. the only catch is that you need a rendezvous server. that server would be run by anybody, so the network would be two tiered - the simple-to-use web clients that share content but don't provide the rendezvous service. then the "full nodes" where the users would also run a rendezvous service, allowing people to find each other.to most users it would look and feel similar to reddit. anyone would be able to run a "business" by just running the "full node" app full-time and delivering the content to users.of course there's a lot more to it than this. i've solved many of the problems, but not all, and there is no prototype yet. but i believe the fundamental technology now exists to create a decentralized reddit, where the users get paid for hosting the system and providing the content. | how would this system approach, say, child pornography? if it is truly decentralised, then there is no way to keep such content off the network. but there must be a way for users/nodes to avoid hosting or encountering such content, otherwise the risk of participating in its distribution, even with plausible deniability, makes 'reddit on the blockchain' a legal/moral/ethical non-starter. |
fix reddit with bitcoin
| how would this system approach, say, child pornography? if it is truly decentralised, then there is no way to keep such content off the network. but there must be a way for users/nodes to avoid hosting or encountering such content, otherwise the risk of participating in its distribution, even with plausible deniability, makes 'reddit on the blockchain' a legal/moral/ethical non-starter. | no offense as i'm sure you're a great guy, but i'm really glad they cancelled the project if that is what you were hired for. there's so many reasons this could never work (i would loved to be proven wrong though).1) i'd say about 10% of the reddit user base even knows what bitcoin is, and far less have any. i don't see people willing to acquire bitcoin just to participate.2) at some point you have to host the content on a computer somewhere. time on computers costs money. in the case of reddit, this is 1000s of dollars a day (and would be even more in a decentralized system due to the overhead of coordination). right now the bitcoin economy is not robust enough to extract 1000s of dollars a day, and there isn't any provider that will accept bitcoin in exchange for compute at that level, or even close to it.3) fewer and fewer people have the ability to host content anymore, be it at home or in a datacenter. so you'd be relying on just a few people who would be willing to host content. this basically leaves you very open to an "attack" on the network by a bad actor, who could take it over with reltive ease if they were just one of a few that were hosting content.4) child porn. it would be way too easy for someone to put that on the network and then everyone would be at risk, further reducing the number of people willing to host (see the list of tor exit nodes that aren't government spy nodes as an example of how few people would be willing to participate).5) related to number 4, the laws in different countries are different. if i host in the usa and you host in say sweden, content that is legal for you may not be legal for me, again opening me up to liability unless i closely police the content, and unlike reddit inc, i don't have the lawyers and common carrier protections.like i said, i'd love to be proven wrong, but given my experience actually running reddit, i just don't think the bitcoin ecosystem is big enough to support it today or even in the medium future. |
fix reddit with bitcoin
| no offense as i'm sure you're a great guy, but i'm really glad they cancelled the project if that is what you were hired for. there's so many reasons this could never work (i would loved to be proven wrong though).1) i'd say about 10% of the reddit user base even knows what bitcoin is, and far less have any. i don't see people willing to acquire bitcoin just to participate.2) at some point you have to host the content on a computer somewhere. time on computers costs money. in the case of reddit, this is 1000s of dollars a day (and would be even more in a decentralized system due to the overhead of coordination). right now the bitcoin economy is not robust enough to extract 1000s of dollars a day, and there isn't any provider that will accept bitcoin in exchange for compute at that level, or even close to it.3) fewer and fewer people have the ability to host content anymore, be it at home or in a datacenter. so you'd be relying on just a few people who would be willing to host content. this basically leaves you very open to an "attack" on the network by a bad actor, who could take it over with reltive ease if they were just one of a few that were hosting content.4) child porn. it would be way too easy for someone to put that on the network and then everyone would be at risk, further reducing the number of people willing to host (see the list of tor exit nodes that aren't government spy nodes as an example of how few people would be willing to participate).5) related to number 4, the laws in different countries are different. if i host in the usa and you host in say sweden, content that is legal for you may not be legal for me, again opening me up to liability unless i closely police the content, and unlike reddit inc, i don't have the lawyers and common carrier protections.like i said, i'd love to be proven wrong, but given my experience actually running reddit, i just don't think the bitcoin ecosystem is big enough to support it today or even in the medium future. | there already are federated social networks. wikipedia has a long list.[1] you never heard of any of them. buddycloud, diaspora and friendica got far enough to have a number of servers in two digits. buddycloud seems to have pivoted into a system for in-house use. diaspora seems to be dying. frendica is running, with a very modest number of users, and trying to replace itself with a new system called red.it's quite possible to do this, but so far, nobody has been able to get anything like enough users to make it useful.[1] <link> |
ask hn: i knocked my housemate's ipad on the floor. should i tell her?
the ipad was resting on a coffee table, which is around 50cm (1.6 foot) high. it was connected to a speaker cable via headphone jack and when i moved the speaker, the ipad was knocked onto the floor.<p>no screen damage and the ipad works.<p>should i tell her?<p>i am concerned that i would automatically be blamed if anything were to happen to the ipad in the future. | mate, tell her. it will help build a stronger, trustful relationship with the person you are living with. | the 'right' thing to do is to tell her. this is trust building and makes you vulnerable. by doing this, you also acknowledge that you trust her to do the right thing should she encounter a problem with the ipad down the track or accidentally bumps something of yours. |
ask hn: i knocked my housemate's ipad on the floor. should i tell her?
the ipad was resting on a coffee table, which is around 50cm (1.6 foot) high. it was connected to a speaker cable via headphone jack and when i moved the speaker, the ipad was knocked onto the floor.<p>no screen damage and the ipad works.<p>should i tell her?<p>i am concerned that i would automatically be blamed if anything were to happen to the ipad in the future. | the 'right' thing to do is to tell her. this is trust building and makes you vulnerable. by doing this, you also acknowledge that you trust her to do the right thing should she encounter a problem with the ipad down the track or accidentally bumps something of yours. | suppose you had to purchase her a new ipad. what would that cost?now suppose you didnt tell her. even were it undamaged what would that cost you?if we lose our self respect we have nothing. |
ask hn: i knocked my housemate's ipad on the floor. should i tell her?
the ipad was resting on a coffee table, which is around 50cm (1.6 foot) high. it was connected to a speaker cable via headphone jack and when i moved the speaker, the ipad was knocked onto the floor.<p>no screen damage and the ipad works.<p>should i tell her?<p>i am concerned that i would automatically be blamed if anything were to happen to the ipad in the future. | suppose you had to purchase her a new ipad. what would that cost?now suppose you didnt tell her. even were it undamaged what would that cost you?if we lose our self respect we have nothing. | yes, you should tell her. |
ask hn: i knocked my housemate's ipad on the floor. should i tell her?
the ipad was resting on a coffee table, which is around 50cm (1.6 foot) high. it was connected to a speaker cable via headphone jack and when i moved the speaker, the ipad was knocked onto the floor.<p>no screen damage and the ipad works.<p>should i tell her?<p>i am concerned that i would automatically be blamed if anything were to happen to the ipad in the future. | yes, you should tell her. | if no visible damage, i would go with no. |
the effects of intermittent fasting on human and animal health
| i'm not hostile to the concept, of intermittent fasting (if), quite the opposite, but i don't think there is much useful information (as the public) we can get from this paper. granted, i've only skimmed, but there are problems. the paper isn't peer-reviewed and the author indicates he doesn't feel inclined to attempt to get the paper reviewed/published. red flag.but that doesn't matter anyway because he reaches only weak conclusions, indicating the data in humans is murky. the author clearly believes if is beneficial anyway and writes as if he is an advocate for it in the intro at the top of the web page, before the paper appears. even more damning, portions of the paper itself read like they were written by an advocate. he just couldn't help himself. his job there is to attempt to be neutral and discover and summarize what the data shows (with conclusions) for his systematic review.however, this paper can serves as a handy compilation of references on the subject which could help other researchers. given the author's advocacy of the subject, if used as such care should be taken to ensure the references are thorough and nothing is omitted. | i haven't had breakfast since about 2007. well, of course there are days where i do have it when i'm staying over at a hotel, or i'm at an early work function. but i don't make breakfast for myself at home. my first meal is between 12h30 and 13h30. i don't feel any worse (or better) than when i used to eat breakfast in the past, but it's been so long that i really can't tell. i suppose this can be considered a type of fasting because of the length of time between lunch and supper the previous night.i've never really understood the idea that breakfast is the most important meal of the day because i've never suffered from any ailments because not eating breakfast. or maybe i have and i just don't know it? but then i could apply that same logic to times when i got inexplicably ill or just was not performing at my peak and i did have breakfast. my point is that i don't notice any significant changes in my health and or behaviour.of course i don't advise anyone doing this (or not doing - check with your physician first), but i still firmly believe that there is a lot of about diet and fitness that has to do with the physiology of the individual.(btw, if anyone else thought the linked article sounded familiar it might be because you've read it already. it was published 1 year ago) |
the effects of intermittent fasting on human and animal health
| i haven't had breakfast since about 2007. well, of course there are days where i do have it when i'm staying over at a hotel, or i'm at an early work function. but i don't make breakfast for myself at home. my first meal is between 12h30 and 13h30. i don't feel any worse (or better) than when i used to eat breakfast in the past, but it's been so long that i really can't tell. i suppose this can be considered a type of fasting because of the length of time between lunch and supper the previous night.i've never really understood the idea that breakfast is the most important meal of the day because i've never suffered from any ailments because not eating breakfast. or maybe i have and i just don't know it? but then i could apply that same logic to times when i got inexplicably ill or just was not performing at my peak and i did have breakfast. my point is that i don't notice any significant changes in my health and or behaviour.of course i don't advise anyone doing this (or not doing - check with your physician first), but i still firmly believe that there is a lot of about diet and fitness that has to do with the physiology of the individual.(btw, if anyone else thought the linked article sounded familiar it might be because you've read it already. it was published 1 year ago) | it's a shame that by self publishing this, the work has not had any kind of peer review. as a relative layman, i have no idea how much i can trust the method or conclusions presented. |
the effects of intermittent fasting on human and animal health
| it's a shame that by self publishing this, the work has not had any kind of peer review. as a relative layman, i have no idea how much i can trust the method or conclusions presented. | besides the proposed health benefits, it is worth also considering the effects on mental/emotional state. it is probably no coincidence that fasting is an element of practically every traditional religious and spiritual practice. as an example, in islam the recommended practice is to fast two times a week (consistent with the regimen the op discusses).things that work well for the physical body usually has a corollary beneficial effect on mental state, which is no less of an upside than the health benefits. |
the effects of intermittent fasting on human and animal health
| besides the proposed health benefits, it is worth also considering the effects on mental/emotional state. it is probably no coincidence that fasting is an element of practically every traditional religious and spiritual practice. as an example, in islam the recommended practice is to fast two times a week (consistent with the regimen the op discusses).things that work well for the physical body usually has a corollary beneficial effect on mental state, which is no less of an upside than the health benefits. | i rather often fast for a lot longer than 16h; i think the 'day fast' is a pretty rough deal, as the hunger (ie, the down side of fasting) is strongest on the first day. so really a small fast isnt too interesting, as you get all the disadvantage without much in terms of advantages.by the second day, you are no longer hungry anyway, so, for me, a 3 day fast is next to ideal. but i can do rather easily 5 days.i mostly start on the monday morning and finish on friday, or saturday if i feel brave and there's nothing too exciting in the fridge!as to why do do it? well i like cooking, and eating, and drinking, and i rather hate counting calories and such, i'm much more of a 'on/off' sort of guy, and i rather like a bit of a challenge. that also helps me control my weight, without having to spend stupid amount of time in the gym.also, there /is/ a 'high' to a fast, i feel like on the third and fourth day you feel particularly sharper; it then decline a bit and you can feel a bit woozy. but the high is pretty cool... |
the annoying boxes puzzle: solution
| that is not a logic puzzle [1], even though the author claims it is; it's a silly outcome that is easily achieved when one breaks how logic puzzles are presented and solved.it's more of a bait-and-switch.here is a famous logic puzzle, often called a knights and knaves style puzzle [2]: knights always tell the truth, knaves always lie."john and bill are standing at a fork in the road. john is standing in front of the left road, and bill is standing in front of the right road. one of them is a knight and the other a knave, but you don't know which. you also know that one road leads to death, and the other leads to freedom. by asking one yes–no question, can you determine the road to freedom?"here's a "solution" in the style of the author: "there is no solution, because the road to 'freedom' is under construction, and the detour leads through 'death.' hahaha! gotcha!"it's a non-solution, and not a logic puzzle any more.[1] <link>
[2] <link> | what bothers me about mjd's explanation of "why doesn't every logic puzzle fall afoul of this problem" is:> > portia explained to the suitor that of the three statements, at most one was true.> notice that the problem condition gives the suitor a certification about the truth of the labels, on which he may rely.(the first sentence is quoted, approvingly, from a puzzle by gardner, and the second explains why it saves that puzzle). sure, there is a certificate provided in the problem; but why may we trust portia's certification, any more than we may trust the labels on the boxes? it seems that one needs either- an annoying intra-textual infinite regress: "portia said this, and balthazar said that portia was telling the truth, and stephano said that balthazar was telling the truth, …" (which still doesn't really address the trust problem, just moves it infinitely far); or- a meta-textual reassurance: "given that at most one of the three statements is true, which of the caskets should the suitor choose?"(edit: oops, mdpopescu (<link> made this point much more succinctly several hours ago.) |
the annoying boxes puzzle: solution
| what bothers me about mjd's explanation of "why doesn't every logic puzzle fall afoul of this problem" is:> > portia explained to the suitor that of the three statements, at most one was true.> notice that the problem condition gives the suitor a certification about the truth of the labels, on which he may rely.(the first sentence is quoted, approvingly, from a puzzle by gardner, and the second explains why it saves that puzzle). sure, there is a certificate provided in the problem; but why may we trust portia's certification, any more than we may trust the labels on the boxes? it seems that one needs either- an annoying intra-textual infinite regress: "portia said this, and balthazar said that portia was telling the truth, and stephano said that balthazar was telling the truth, …" (which still doesn't really address the trust problem, just moves it infinitely far); or- a meta-textual reassurance: "given that at most one of the three statements is true, which of the caskets should the suitor choose?"(edit: oops, mdpopescu (<link> made this point much more succinctly several hours ago.) | ugh, it is annoying. and the author is a bit of jerk (read it and you'll see what i mean.) |
the annoying boxes puzzle: solution
| ugh, it is annoying. and the author is a bit of jerk (read it and you'll see what i mean.) | this is secretly a lesson about comments in legacy code. |
the annoying boxes puzzle: solution
| this is secretly a lesson about comments in legacy code. | imagine oneself playing a game of simon says, where we don't know who simon is or which bits he's actually saying, he in fact sounds exactly like everyone else giving us instructions: we can choose to believe what we want about the actions we are told to make, but an adversarial simon can always contradict us. it's not a game i'd enjoy playing nor a lesson i think i benefited from very much... |
minister no more
| i saw this comparison earlier and was struck by the depth of the greek recession:<link>'re in worse shape than the us was at the same time into the great depression. six years after the gfc, and greece's gdp is still 25% lower than it was pre-crisis.this is really unprecedented stuff. hard to blame them for taking extreme positions to end the suffering. | for reference, this is the same yanis varoufakis who, before working for the greek ministry of finance, worked for valve as a digital economist: <link> |
minister no more
| for reference, this is the same yanis varoufakis who, before working for the greek ministry of finance, worked for valve as a digital economist: <link> | brilliant.i believe his exit was planned before the referendum, regardless of the outcome. he had already openly stated that he would step down if the result of the vote was yes, but the media never asked him what would happen in the event of a no victory.his exit, especially in the early am before eu markets open, will give some confidence to the bankers and most likely prevent the markets from sinking. furthermore, it will signal to the creditors that syriza is serious about reaching a deal.i've been following the evolution of mr. varoufakis's thinking for the last 5 years, through his many appearances on doug henwood's behind the news podcast. listening to him speak on the euro-crisis, it's clear that there's no one in the media who has a better grasp of how we got into this mess and how we ought to get out of it.<link> |
minister no more
| brilliant.i believe his exit was planned before the referendum, regardless of the outcome. he had already openly stated that he would step down if the result of the vote was yes, but the media never asked him what would happen in the event of a no victory.his exit, especially in the early am before eu markets open, will give some confidence to the bankers and most likely prevent the markets from sinking. furthermore, it will signal to the creditors that syriza is serious about reaching a deal.i've been following the evolution of mr. varoufakis's thinking for the last 5 years, through his many appearances on doug henwood's behind the news podcast. listening to him speak on the euro-crisis, it's clear that there's no one in the media who has a better grasp of how we got into this mess and how we ought to get out of it.<link> | ignoring everything else, watching this whole saga unfold has been absolutely incredible. in a global environment mainly involving conservative powers, seeing a left-wing party take left-wing views to the negotiation table is utterly fascinating.the next few days are going to be incredible. i really do hope yanis stays on with the greek government - his knowledge is clearly beneficial even if his ability to negotiate is lacking (for reasons i'm partially sympathetic to given the qualifications of his counterparts). he definitely has a position to play in the greek government adivsing their plays in the coming future.e: i'd absolutely love to see him and wayne swan (au centre-left-wing treasurer during the gfc) sit down and discuss both the au and greek history between gfc and now. swan and co. implemented a massive stimulation package that's widely credited as saving au from feeling the bulk of the pain of the gfc and was relatively unique in its existance amongst the approaches of various nations. i think both of them could have quite the discussion about how both au and greece approached this and the resultant effects then to now. |
minister no more
| ignoring everything else, watching this whole saga unfold has been absolutely incredible. in a global environment mainly involving conservative powers, seeing a left-wing party take left-wing views to the negotiation table is utterly fascinating.the next few days are going to be incredible. i really do hope yanis stays on with the greek government - his knowledge is clearly beneficial even if his ability to negotiate is lacking (for reasons i'm partially sympathetic to given the qualifications of his counterparts). he definitely has a position to play in the greek government adivsing their plays in the coming future.e: i'd absolutely love to see him and wayne swan (au centre-left-wing treasurer during the gfc) sit down and discuss both the au and greek history between gfc and now. swan and co. implemented a massive stimulation package that's widely credited as saving au from feeling the bulk of the pain of the gfc and was relatively unique in its existance amongst the approaches of various nations. i think both of them could have quite the discussion about how both au and greece approached this and the resultant effects then to now. | he gave 2 talks a few years ago that are well worth a watch - he talks briefly about the abuse of mathematics in certain parts of academic economy, cites a star trek voyager episode and other interesting things:<link> |
was the soviet 1923 male birth cohort doomed by world war ii? (2014)
| despite having tried to google it a few times, i have never found a table of deaths by birth year over wwi or wwii for any country. you'd think it would be on wikipedia. even rough estimates would make for a nice blog post. | although a classic case of betteridge's law, it's a fascinating article. |
was the soviet 1923 male birth cohort doomed by world war ii? (2014)
| although a classic case of betteridge's law, it's a fascinating article. | possibly more shocking, more than 60% of men who were born in 1923 and still alive in 1941 would die during the war (assuming i've understood the article correctly and my maths is sound). |
was the soviet 1923 male birth cohort doomed by world war ii? (2014)
| possibly more shocking, more than 60% of men who were born in 1923 and still alive in 1941 would die during the war (assuming i've understood the article correctly and my maths is sound). | <link> |
was the soviet 1923 male birth cohort doomed by world war ii? (2014)
| <link> | shocking is also how they died. on 40 years ago on our farm worked a heavily alcoholic tank-driver from the eastern front- when drunk he would ramble about what happend there.the sovjet officers told there hastily trained recruits that they had anti-tank-guns who could penetrant german tanks.
they could not.
so the tank would drive along the dug emergency trench.
one tankchain in the trenches.
they would fire.
they would be crushed.
dont remember the length - but about one day of nightmarish driving of this. |
ask hn: i want to become an evangelist, how do i go about it?
so to give you a little insight into myself. i am a recent graduate bs application development student. even before i graduated, i was signed away to a great company. i applied to become an android developer, because while studying it was a field i showed intrest in. during my internship i fell in love with web technology. my company was just starting a web-unit, since it was primarily focused on app-development in the past (mainly ios). i was grateful to be in a position where i could make the shift to something i felt more passionate about. when i graduated i started taking on way too many commitments simultaneously. trying to stick my hand in as many cookie-jars as possible trying to make money as fast as possible. i want to accomplish and so little time. i'm 22 and i feel if i don't hit it big within the next 2 years i probably won't. eventually i dropped everything. after which i asked myself one important question: where do i want to be in 5 years? i am a good developer, i am valued at my work as a developer. however i know i'll never be a great developer, not to be harsh on myself. but i do the google code-jams and what-not and 15 year olds can beat me straight. i have no great mind. i'm smart and tech-savvy and i learn quick, but i am no genius. before becoming a developer i was a field-marketeer for 2 years selling electronics in stores as a way to make money while studying. my last year i got hired by microsoft to exclusively sell their products and be a one-stop knowledge base in stores. i loved it, people came to me and i knew how to help them. seeing that light go on in someones eyes when they understood something was beautiful. given 90% of the time the clients were tech-handicap, but still. i want to pursue something on the developer-scale that combines both. i know it takes years of experience to become an evangelist. my question is: how do you start? what do you do?
maybe there are evangelists out there that can give me some tips. | given 90% of the time the clients were tech-handicap, but still.referring to people who aren't knowledgeable about a subject as 'tech-handicap' rules you out as a potential evangelist in my opinion. you need to be an expert, you need to be passionate about a product, but most of all you need to be a nice person who doesn't look down on people who know less than you. | i've been a tech evangelist. it's an interesting and stressful job. if you can cope with lots of (international) travel, repeating the same speech over and over and over, subsisting on pizza and cheap beer, and listening to over-confident neophytes explaining why their plan to beat facebook is rock solid - it may be the job for you!as with any role, the best way to demonstrate your worth is to develop a portfolio. give talks at every meetup you can. make sure they're video'd - watch them back and learn from your mistakes.get a name for yourself on stackoverflow (or whatever) as someone who can clearly and concisely explain a solution.write dozens of blog posts - and get them syndicated - showing how you can write tutorials, answer questions, and explain moderately difficult concepts to a lay audience.learn how to organise events. start your own meetups / hackdays / whatever. organising venues, catering, invites, sponsors, speakers, schwag etc is absolutely invaluable experience. join the organising committee of your local events.finally, find a company (preferably with some funding) who you can see needs to get their message out there. write up your plan on how you would help them succeed. which meetups are they best to sponsor? which merchandise has the best response among developers? what parts of their proposition need the most explaining. pitch your experience.a word of warning. i quit the evangelist game because i couldn't cope with frequent international travel. it's fun at first - but can play havoc with your personal relationships. |
ask hn: i want to become an evangelist, how do i go about it?
so to give you a little insight into myself. i am a recent graduate bs application development student. even before i graduated, i was signed away to a great company. i applied to become an android developer, because while studying it was a field i showed intrest in. during my internship i fell in love with web technology. my company was just starting a web-unit, since it was primarily focused on app-development in the past (mainly ios). i was grateful to be in a position where i could make the shift to something i felt more passionate about. when i graduated i started taking on way too many commitments simultaneously. trying to stick my hand in as many cookie-jars as possible trying to make money as fast as possible. i want to accomplish and so little time. i'm 22 and i feel if i don't hit it big within the next 2 years i probably won't. eventually i dropped everything. after which i asked myself one important question: where do i want to be in 5 years? i am a good developer, i am valued at my work as a developer. however i know i'll never be a great developer, not to be harsh on myself. but i do the google code-jams and what-not and 15 year olds can beat me straight. i have no great mind. i'm smart and tech-savvy and i learn quick, but i am no genius. before becoming a developer i was a field-marketeer for 2 years selling electronics in stores as a way to make money while studying. my last year i got hired by microsoft to exclusively sell their products and be a one-stop knowledge base in stores. i loved it, people came to me and i knew how to help them. seeing that light go on in someones eyes when they understood something was beautiful. given 90% of the time the clients were tech-handicap, but still. i want to pursue something on the developer-scale that combines both. i know it takes years of experience to become an evangelist. my question is: how do you start? what do you do?
maybe there are evangelists out there that can give me some tips. | i've been a tech evangelist. it's an interesting and stressful job. if you can cope with lots of (international) travel, repeating the same speech over and over and over, subsisting on pizza and cheap beer, and listening to over-confident neophytes explaining why their plan to beat facebook is rock solid - it may be the job for you!as with any role, the best way to demonstrate your worth is to develop a portfolio. give talks at every meetup you can. make sure they're video'd - watch them back and learn from your mistakes.get a name for yourself on stackoverflow (or whatever) as someone who can clearly and concisely explain a solution.write dozens of blog posts - and get them syndicated - showing how you can write tutorials, answer questions, and explain moderately difficult concepts to a lay audience.learn how to organise events. start your own meetups / hackdays / whatever. organising venues, catering, invites, sponsors, speakers, schwag etc is absolutely invaluable experience. join the organising committee of your local events.finally, find a company (preferably with some funding) who you can see needs to get their message out there. write up your plan on how you would help them succeed. which meetups are they best to sponsor? which merchandise has the best response among developers? what parts of their proposition need the most explaining. pitch your experience.a word of warning. i quit the evangelist game because i couldn't cope with frequent international travel. it's fun at first - but can play havoc with your personal relationships. | firstly, good communication is very important to being an evangelist. so you should edit your post into separate paragraphs to make it easier to read. |
ask hn: i want to become an evangelist, how do i go about it?
so to give you a little insight into myself. i am a recent graduate bs application development student. even before i graduated, i was signed away to a great company. i applied to become an android developer, because while studying it was a field i showed intrest in. during my internship i fell in love with web technology. my company was just starting a web-unit, since it was primarily focused on app-development in the past (mainly ios). i was grateful to be in a position where i could make the shift to something i felt more passionate about. when i graduated i started taking on way too many commitments simultaneously. trying to stick my hand in as many cookie-jars as possible trying to make money as fast as possible. i want to accomplish and so little time. i'm 22 and i feel if i don't hit it big within the next 2 years i probably won't. eventually i dropped everything. after which i asked myself one important question: where do i want to be in 5 years? i am a good developer, i am valued at my work as a developer. however i know i'll never be a great developer, not to be harsh on myself. but i do the google code-jams and what-not and 15 year olds can beat me straight. i have no great mind. i'm smart and tech-savvy and i learn quick, but i am no genius. before becoming a developer i was a field-marketeer for 2 years selling electronics in stores as a way to make money while studying. my last year i got hired by microsoft to exclusively sell their products and be a one-stop knowledge base in stores. i loved it, people came to me and i knew how to help them. seeing that light go on in someones eyes when they understood something was beautiful. given 90% of the time the clients were tech-handicap, but still. i want to pursue something on the developer-scale that combines both. i know it takes years of experience to become an evangelist. my question is: how do you start? what do you do?
maybe there are evangelists out there that can give me some tips. | firstly, good communication is very important to being an evangelist. so you should edit your post into separate paragraphs to make it easier to read. | "i'm 22 and i feel if i don't hit it big within the next 2 years i probably won't. "i'm not sure what you want to achieve but in general the real world is not that strict. you are stuffing your ambitions into a tiny box and for no good reason. i would advice you figure out where you want to be in the next 20 years. this will give you a far larger scope for your thoughts.old people are not junk, if they keep their mental and physical faculties. |
ask hn: i want to become an evangelist, how do i go about it?
so to give you a little insight into myself. i am a recent graduate bs application development student. even before i graduated, i was signed away to a great company. i applied to become an android developer, because while studying it was a field i showed intrest in. during my internship i fell in love with web technology. my company was just starting a web-unit, since it was primarily focused on app-development in the past (mainly ios). i was grateful to be in a position where i could make the shift to something i felt more passionate about. when i graduated i started taking on way too many commitments simultaneously. trying to stick my hand in as many cookie-jars as possible trying to make money as fast as possible. i want to accomplish and so little time. i'm 22 and i feel if i don't hit it big within the next 2 years i probably won't. eventually i dropped everything. after which i asked myself one important question: where do i want to be in 5 years? i am a good developer, i am valued at my work as a developer. however i know i'll never be a great developer, not to be harsh on myself. but i do the google code-jams and what-not and 15 year olds can beat me straight. i have no great mind. i'm smart and tech-savvy and i learn quick, but i am no genius. before becoming a developer i was a field-marketeer for 2 years selling electronics in stores as a way to make money while studying. my last year i got hired by microsoft to exclusively sell their products and be a one-stop knowledge base in stores. i loved it, people came to me and i knew how to help them. seeing that light go on in someones eyes when they understood something was beautiful. given 90% of the time the clients were tech-handicap, but still. i want to pursue something on the developer-scale that combines both. i know it takes years of experience to become an evangelist. my question is: how do you start? what do you do?
maybe there are evangelists out there that can give me some tips. | "i'm 22 and i feel if i don't hit it big within the next 2 years i probably won't. "i'm not sure what you want to achieve but in general the real world is not that strict. you are stuffing your ambitions into a tiny box and for no good reason. i would advice you figure out where you want to be in the next 20 years. this will give you a far larger scope for your thoughts.old people are not junk, if they keep their mental and physical faculties. | > i'm 22 and i feel if i don't hit it big within the next 2 years i probably won't.two years is not long enough to become regarded as an expert at anything. you are potentially shutting yourself off from much with this attitude. i think many people have this fear of "never going to be as good as the others", but here's the thing -- many people think it, very few admit it, which makes it seem disproportionately scarier.stick with it. learn from the 15 year olds until you beat them straight. |
essential facts about floating point calculations
| a huge roadblock i recently ran into: it's possible, that floating operations may yield different results depending on the compiler or cpu architecture.as far as i know it's not possible to run a simulation depending on floats on different machines, expecting the same output. some people recommend switching to integer operations and to keep floating point arithmetic to a minimum. is this the only way to get deterministic math across machines?<link> ran into this while trying to procedurally generate a map based on a seed value. heightmap, zones/biomes, rivers, towns, etc are all based on a seed. the result must be completely reproducible on different machines, otherwise players would see different maps. the terrain is large and therefore chunked. there's a seed per chunk and only seeds of chunks visible to the client are sent to him.i now believe that the only way to implement this correctly is passing the full, complete state of a chunk to the player after the generation. there's no sane way to implement the whole generation with integer math only. but there's a positive side-effect: more traffic but less performance needed to regenerate the chunk on the client.actually it's simpler to work around this problem in a physics simulation, because the authoritative server can simply sync the properties across the players frequently. | despite what this page says, you can round-trip between floating point and strings. take a look at:<link>, printf(“%1.8e”, f); ensures that a float will round-trip to decimal and back |
essential facts about floating point calculations
| despite what this page says, you can round-trip between floating point and strings. take a look at:<link>, printf(“%1.8e”, f); ensures that a float will round-trip to decimal and back | if( abs(x - y) < 1e-6 ).
testing for absolute error is often incorrect. here is a better floating point comparator:<link> |
essential facts about floating point calculations
| if( abs(x - y) < 1e-6 ).
testing for absolute error is often incorrect. here is a better floating point comparator:<link> | reference link to what every computer scientist should know about floating-point arithmetic :<link> |
essential facts about floating point calculations
| reference link to what every computer scientist should know about floating-point arithmetic :<link> | good article! just a couple corrections / comments:> n * x != x + … + xnot true if n == 2! for n = 2 they are exactly the same.why is this? because "n * 2" and "n + n" are both exactly one operation, which means they only get rounded once, and since both are mathematically identical they both get rounded to the same value.> i’m not sure why, but the default string formatting of floating point numbers in most languages, even domain-specific math languages, does not have high enough precision to store the complete number.i think it's probably related to the fact that printf() doesn't have any format specifiers for float that do what you really want, which is: print the shortest number that will parse back to the right value.so unless people want to implement this algorithm themselves (and, fascinatingly, the best known algorithm to do this was published only five years ago: <link>, you have to choose between having all your numbers be annoyingly long or losing precision for some numbers. |
supercharged tuberculosis, made in india
| part of the problem is how easily antibiotics are available over the counter in india. no prescription required.a large number of people self-prescribe or take the advice of non-medical people when looking for a cure.i've seen folk take some pretty serious stuff (tetracycline, streptomycin etc.) on advice from the sales-staff at their local pharmacy.the government has done little or nothing to stop this behaviour. | really puts the singularity hype into perspective. for years i've been hearing from them about radical medical advances just around the corner, and here we see that on this front, rather than making exponential progress, or even just progress period, medical "science" is actually losing rather than gaining ground. |
supercharged tuberculosis, made in india
| really puts the singularity hype into perspective. for years i've been hearing from them about radical medical advances just around the corner, and here we see that on this front, rather than making exponential progress, or even just progress period, medical "science" is actually losing rather than gaining ground. | hypocrisies americans...
you fuck up and marry ur relative do incest and come up with all diseases and blame india for viruses etc...
your pharma companies create sterns and viruses and spread in other countries just coz u can make profit by selling vacancies ... faggots u will also die from freaking diseases soon... |
supercharged tuberculosis, made in india
| hypocrisies americans...
you fuck up and marry ur relative do incest and come up with all diseases and blame india for viruses etc...
your pharma companies create sterns and viruses and spread in other countries just coz u can make profit by selling vacancies ... faggots u will also die from freaking diseases soon... | while it looks grim, i think wheels are in motion. this article by world bank - <link> puts things more in perspective.bottom line:1. government has increased spending on tuberculosis diagnosis and treatment.2. organizations like gates foundation (<link> are doing good job in getting things in motion.3. ngo's like operation asha(<link> are doing tremendous job ensuring patients take their medication properly.a big part of the problem seems to be diagnosis and proper treatment before the disease becomes drug resistant. this quote from linked article:>all too often, patients are misdiagnosed and wrongly treated by private providers who then dump them, broke and drug-resistant, onto the public health system. |
supercharged tuberculosis, made in india
| while it looks grim, i think wheels are in motion. this article by world bank - <link> puts things more in perspective.bottom line:1. government has increased spending on tuberculosis diagnosis and treatment.2. organizations like gates foundation (<link> are doing good job in getting things in motion.3. ngo's like operation asha(<link> are doing tremendous job ensuring patients take their medication properly.a big part of the problem seems to be diagnosis and proper treatment before the disease becomes drug resistant. this quote from linked article:>all too often, patients are misdiagnosed and wrongly treated by private providers who then dump them, broke and drug-resistant, onto the public health system. | what i never actually got- why do we have to wait for this to happen in the wild ?
what prevents us from cultivating connected tissuesamples, and breed the superbugs of the next generation in the lab, so that countermeasures are available when it happens?i know that mutations (virus) and recombinations (exchange of dna between bacteria) are unpreditable - but most of them would remain local - only those infectious enough to be transfered are of interest, in the wild as in the lab. |
numi: beautiful calculator app for mac you will love to use every day
| well i opened the link being a bit sceptical but i have to admit it's really nice! well done! | looks really nice. i'm a big fan of soulver[1] too, which is basically a more featureful and less minimalist version of this. i've also tried calca[2], which seems really good but ultimately didn't replace soulver for me.on a tangential note, it's really nice to see that the mac app scene still turns out these kinds of more experimental apps. long may it continue![1] <link>
[2] <link> |
numi: beautiful calculator app for mac you will love to use every day
| looks really nice. i'm a big fan of soulver[1] too, which is basically a more featureful and less minimalist version of this. i've also tried calca[2], which seems really good but ultimately didn't replace soulver for me.on a tangential note, it's really nice to see that the mac app scene still turns out these kinds of more experimental apps. long may it continue![1] <link>
[2] <link> | highly recommend soulver in this category as well - i probably use soulver 100+ times a day, it's particularly awesome around things like throughput - you can throw things like, "10 kbits/second at 30 days in megabytes" - the sort of stuff people screw up all the time with excel when they forget to multiple by 8 somewhere.it can also do the currency translation, "1 btc in usd"and string a bunch of them, to do things like, "$2/square foot in sgd/square meter" |
numi: beautiful calculator app for mac you will love to use every day
| highly recommend soulver in this category as well - i probably use soulver 100+ times a day, it's particularly awesome around things like throughput - you can throw things like, "10 kbits/second at 30 days in megabytes" - the sort of stuff people screw up all the time with excel when they forget to multiple by 8 somewhere.it can also do the currency translation, "1 btc in usd"and string a bunch of them, to do things like, "$2/square foot in sgd/square meter" | this looks really, really nice. but i think a problem for adoption is that on a mac spotlight can already do most of the calculations this does that i'd actually want to do on a regular basis (for me, that's currency conversion and some basic arithmetic). i can imagine downloading this, being impressed by its slickness, and then routinely forgetting to use it in favour of spotlight. |
numi: beautiful calculator app for mac you will love to use every day
| this looks really, really nice. but i think a problem for adoption is that on a mac spotlight can already do most of the calculations this does that i'd actually want to do on a regular basis (for me, that's currency conversion and some basic arithmetic). i can imagine downloading this, being impressed by its slickness, and then routinely forgetting to use it in favour of spotlight. | apps for just a single os _in this day and age_ upset me :( why is this osx only? what element of it could only be achieved or expressed on a mac? disappointing. i want to use it but i can't. |
ask hn: where to switch from gmail?
hello everyone,<p>i would like to switch from gmail to another email provider with a bit more privacy. i know it won't change anything but as they say "be the change that you wish to see in the world.". i have no problem to pay if it's not so expensive. i don't care much about external things like calendar but i would need some import to import all my old emails. i would like also to make my parents switch at some point if it works well for me, we will see.<p>do you have any recommendations for a new email provider ? i would like to have some advice on this and your recommendations if you have done this in the past. changing an email address is not something to take lightly and i would like to switch to a provider who is likely still going to exist in the next 5 years. | i have switched from gmail to zoho sometime back. but problem is people i am emailing use gmail, majority of them. last time i checked, i had sent about 85% of my emails to gmail. so, my emails are anyways being ended up on gmail servers. i am trying to get my friends and family to switch to zoho, but they always end up back using gmail :( | i am using <link> with great results.
they do have some features in there interface to ease the transition like being able to both send and receive mail from your old address directly from there interface. |
ask hn: where to switch from gmail?
hello everyone,<p>i would like to switch from gmail to another email provider with a bit more privacy. i know it won't change anything but as they say "be the change that you wish to see in the world.". i have no problem to pay if it's not so expensive. i don't care much about external things like calendar but i would need some import to import all my old emails. i would like also to make my parents switch at some point if it works well for me, we will see.<p>do you have any recommendations for a new email provider ? i would like to have some advice on this and your recommendations if you have done this in the past. changing an email address is not something to take lightly and i would like to switch to a provider who is likely still going to exist in the next 5 years. | i am using <link> with great results.
they do have some features in there interface to ease the transition like being able to both send and receive mail from your old address directly from there interface. | zoho.com is not bad.but i switched to <link> a few years ago.
30 euros/year for 5 gb, 100 aliases, a very good hotline and the option to put your mails on a server without backup, which means that when you delete a message, it's deleted, not stocked on a backup (yes, if their servers fail, you lost everything you didn't backup yourself, but for now, it has never happened :)and they can get you your own domain name for 15 bucks/year.and they're green and in norway and if you use their roundcube webpage, it manages gpg keys and yes, i sound like a fanboy :). |
ask hn: where to switch from gmail?
hello everyone,<p>i would like to switch from gmail to another email provider with a bit more privacy. i know it won't change anything but as they say "be the change that you wish to see in the world.". i have no problem to pay if it's not so expensive. i don't care much about external things like calendar but i would need some import to import all my old emails. i would like also to make my parents switch at some point if it works well for me, we will see.<p>do you have any recommendations for a new email provider ? i would like to have some advice on this and your recommendations if you have done this in the past. changing an email address is not something to take lightly and i would like to switch to a provider who is likely still going to exist in the next 5 years. | zoho.com is not bad.but i switched to <link> a few years ago.
30 euros/year for 5 gb, 100 aliases, a very good hotline and the option to put your mails on a server without backup, which means that when you delete a message, it's deleted, not stocked on a backup (yes, if their servers fail, you lost everything you didn't backup yourself, but for now, it has never happened :)and they can get you your own domain name for 15 bucks/year.and they're green and in norway and if you use their roundcube webpage, it manages gpg keys and yes, i sound like a fanboy :). | are you in control of your own domain?perhaps gandi.net, if you're in control of the domain. email is included as a perk of domain registration, and more options as paid. |
ask hn: where to switch from gmail?
hello everyone,<p>i would like to switch from gmail to another email provider with a bit more privacy. i know it won't change anything but as they say "be the change that you wish to see in the world.". i have no problem to pay if it's not so expensive. i don't care much about external things like calendar but i would need some import to import all my old emails. i would like also to make my parents switch at some point if it works well for me, we will see.<p>do you have any recommendations for a new email provider ? i would like to have some advice on this and your recommendations if you have done this in the past. changing an email address is not something to take lightly and i would like to switch to a provider who is likely still going to exist in the next 5 years. | are you in control of your own domain?perhaps gandi.net, if you're in control of the domain. email is included as a perk of domain registration, and more options as paid. | run your own mailserver - postfix + roundcube.it'll take you some time to set it up, but it will be educational! |
finish your stuff
| "real artists ship""if you are not embarrassed by the first version of your product, you've launched too late"<link>,_release_ofteni'm sure there are many others, but these ones keep me shipping. | i thought the unix philosophy embraced the idea of "small tools that do one thing really well."> please join me in my effort and do finish your projects.hear, hear. a friend and i hosted a "finish it! weekend" once (as opposed to a "startup weekend"). the idea was to get people together for one weekend and finish that last 10% or whatever of a project. sadly we were the only two to show up. (and we both finished our projects, which suggests this might be a good kind of hackathon to host every six months or so). |
finish your stuff
| i thought the unix philosophy embraced the idea of "small tools that do one thing really well."> please join me in my effort and do finish your projects.hear, hear. a friend and i hosted a "finish it! weekend" once (as opposed to a "startup weekend"). the idea was to get people together for one weekend and finish that last 10% or whatever of a project. sadly we were the only two to show up. (and we both finished our projects, which suggests this might be a good kind of hackathon to host every six months or so). | am i the only one that really hates the carpenter analogy? as someone who does woodworking on the side of my programming, there's a million reasons why it's a terrible way to think about software development. the chair doesn't have supported platforms, new security issues, or the need to be updated so that people keep buying the same chair. someone else isn't going to have to come along later to maintain the chair and have to be knowledgeable about the specific tools that the chair was built with. |
finish your stuff
| am i the only one that really hates the carpenter analogy? as someone who does woodworking on the side of my programming, there's a million reasons why it's a terrible way to think about software development. the chair doesn't have supported platforms, new security issues, or the need to be updated so that people keep buying the same chair. someone else isn't going to have to come along later to maintain the chair and have to be knowledgeable about the specific tools that the chair was built with. | there's a great list of project management advice by jerry madden of nasa that gets posted here occasionally[1]. one of the points is;"rule #30: it is mainly the incompetent that don't like to show off their work."madden's remark is based on the specific environment he was involved in (nasa engineering); if you're surrounded by people who are good at their jobs and who know how to criticise constructively then there aren't many reasons to hide what you're doing other than it being a bit rubbish. i don't entirely agree with the idea that people who don't show things off are necessarily incompetent, especially if showing off your work means putting it under general public scrutiny (who can be very nasty), but there's a huge amount of value to be gained in getting feedback from your peers as early as possible.[1] <link> (non-pdf version: <link> ) |
finish your stuff
| there's a great list of project management advice by jerry madden of nasa that gets posted here occasionally[1]. one of the points is;"rule #30: it is mainly the incompetent that don't like to show off their work."madden's remark is based on the specific environment he was involved in (nasa engineering); if you're surrounded by people who are good at their jobs and who know how to criticise constructively then there aren't many reasons to hide what you're doing other than it being a bit rubbish. i don't entirely agree with the idea that people who don't show things off are necessarily incompetent, especially if showing off your work means putting it under general public scrutiny (who can be very nasty), but there's a huge amount of value to be gained in getting feedback from your peers as early as possible.[1] <link> (non-pdf version: <link> ) | i find it irritating when people look at some of my projects on github and consider then "abandoned" because they haven't had any commits in a year or two. they're not abandoned: they're finished. they do what they're designed to do, and i use them regularly.outstanding issues may exist for feature requests that i don't need, or for minor bugs that won't occur in anything but obscure edge cases that don't apply to the primary use case. i welcome high quality patches but otherwise have no interest in pursuing them. |
jscoq
| wasn't the whole point of functional programming to avoid languages like javascript (or even oop like python, c++)? | forbiddenyou don't have permission to access /rhino-coq/ on this server. |
jscoq
| forbiddenyou don't have permission to access /rhino-coq/ on this server. | but if i run coq on the client anyway, why would i take a gratuitous detour through the browser?a real repl (i.e. in your shell, not in your browser) that uses mathjax or whatever for result rendering would look much more interesting to me.if the universe ever comes to an end it will be because it has been rewritten in js. |
jscoq
| but if i run coq on the client anyway, why would i take a gratuitous detour through the browser?a real repl (i.e. in your shell, not in your browser) that uses mathjax or whatever for result rendering would look much more interesting to me.if the universe ever comes to an end it will be because it has been rewritten in js. | this is 403 forbidden at the moment, but if it's a way to run coq in a browser, proofweb is also of interest:<link> |
jscoq
| this is 403 forbidden at the moment, but if it's a way to run coq in a browser, proofweb is also of interest:<link> | original link fyi:<link> |
the grateful dead's wall of sound
| this article is not entirely unlike a dead show: it's quite rambling and unfocused, but there's stuff to get your teeth into if you invest the time in the right frame of mind. | a group of my friends throw a 150-person mini dance festival every 4th of july weekend. in the past they've used mackie srm450s with a couple of subs, but this year we brought a pair of sr1530s, plus the same subs. both are active systems with 100-watt hf drivers and 300-watt lf, but the sr1530 has an additional 100-watt midrange element.the difference is astonishing - much more significant than you'd expect if you're used to thinking of volume as a function of power. it was an awesome wall of clear, clear sound, and we had to keep it turned down a fair bit in order to keep from driving people out of the dance area. 100 more watts doesn't seem like much, but separating sound-reproduction responsibilities among three different amps clearly makes a really big difference.i did notice some of the problems the article describes with stereo, though. there were definitely parts of the field where you could hear one side but not the other, and it was distracting. we clearly have more to learn about this whole business. |
the grateful dead's wall of sound
| a group of my friends throw a 150-person mini dance festival every 4th of july weekend. in the past they've used mackie srm450s with a couple of subs, but this year we brought a pair of sr1530s, plus the same subs. both are active systems with 100-watt hf drivers and 300-watt lf, but the sr1530 has an additional 100-watt midrange element.the difference is astonishing - much more significant than you'd expect if you're used to thinking of volume as a function of power. it was an awesome wall of clear, clear sound, and we had to keep it turned down a fair bit in order to keep from driving people out of the dance area. 100 more watts doesn't seem like much, but separating sound-reproduction responsibilities among three different amps clearly makes a really big difference.i did notice some of the problems the article describes with stereo, though. there were definitely parts of the field where you could hear one side but not the other, and it was distracting. we clearly have more to learn about this whole business. | few years ago i've experienced dub sound system (jah shaka) for the first time. i've fallen in love with the concept immediately. it was entirely different from your regular rave, the culture and the musical vibrations that just move your body. did not like the tinnitus for next few days, but that's why you need ear plugs.if you never been in one, i highly recommend. very different experience. they are usually somewhat underground so takes some research into what dub and reggae is. |
the grateful dead's wall of sound
| few years ago i've experienced dub sound system (jah shaka) for the first time. i've fallen in love with the concept immediately. it was entirely different from your regular rave, the culture and the musical vibrations that just move your body. did not like the tinnitus for next few days, but that's why you need ear plugs.if you never been in one, i highly recommend. very different experience. they are usually somewhat underground so takes some research into what dub and reggae is. | ah, owsley "the bear" stanley. he also lived on a fatty-meat-only zero-carb diet for some 50 years in decent health until he died in a car accident aged 75 in 2011. quite the character: <link> |
the grateful dead's wall of sound
| ah, owsley "the bear" stanley. he also lived on a fatty-meat-only zero-carb diet for some 50 years in decent health until he died in a car accident aged 75 in 2011. quite the character: <link> | > "that’s because the wall was a pa of pas—six independent pas, one for each instrument. lead guitar, rhythm guitar, vocals, bass, drums, and piano each had a dedicated pa, according to the official deadheads newsletter no. 19, published in december 1974. this did away with having to mix everything through a single set of speakers. the “single biggest thing besides the true line array aspect” of the wall, as wiz told me, was how there was no need for panning, or adjusting various sound levels on a mixing console."much of live sound today sounds pretty poor and a great sound tech and producer, lennart östlund from the abba polar studio, told us (small workshop on mixing) that the cure was exactly what the dead did. a pa per instrument. if you can't do that at least split the vocals to a separate system. which he had actually tried with great success several times. |
postico: a modern postgresql client for os x
| previously discussed <link> around the time it launched. | it's improved since the last time i looked at it, so good work. a couple of issues i ran into:1) if you have an empty blank line after a query, you get a syntax error2) an option to expand column widths to match column name would be nice.3) perhaps i'm not getting it, but for ad hoc sql queries, i'd prefer a free form text window a la toad or squirrel, where the query that the cursor is on is the current query to be executed (via key binding). i switch back and forth between queries a lot, and it's useful to be able view several of them simultaneously. the current interface is feels way too limited and clumsy, imho. being able to go forward/back in history is nice (though i need to be able to rebind the shortcut, as ctrl-cmd-left/ctrl-cmd-right are both bound to spectacle), but not sufficient, imho. you need to be able to view multiple queries at a time.4) an optional 'auto-limit' is an awesome feature of squirrel that allows you to do all sorts of queries quickly without having to always type "limit 1" or whatnot. i had forgotten how much i had relied on it until i tried using this and kept accidentally getting giant result sets.5) another nice to have (also in squirrel) - autocomplete.6) if you could pull up and instasearch the query history with like cmd-p (like sublime or atom) or something that would be amazing.7) essential: allow user to remap/redefine keyboard shortcuts.keep going! if one day this is sufficient to supplant squirrel then i'll definitely buy it. |
postico: a modern postgresql client for os x
| it's improved since the last time i looked at it, so good work. a couple of issues i ran into:1) if you have an empty blank line after a query, you get a syntax error2) an option to expand column widths to match column name would be nice.3) perhaps i'm not getting it, but for ad hoc sql queries, i'd prefer a free form text window a la toad or squirrel, where the query that the cursor is on is the current query to be executed (via key binding). i switch back and forth between queries a lot, and it's useful to be able view several of them simultaneously. the current interface is feels way too limited and clumsy, imho. being able to go forward/back in history is nice (though i need to be able to rebind the shortcut, as ctrl-cmd-left/ctrl-cmd-right are both bound to spectacle), but not sufficient, imho. you need to be able to view multiple queries at a time.4) an optional 'auto-limit' is an awesome feature of squirrel that allows you to do all sorts of queries quickly without having to always type "limit 1" or whatnot. i had forgotten how much i had relied on it until i tried using this and kept accidentally getting giant result sets.5) another nice to have (also in squirrel) - autocomplete.6) if you could pull up and instasearch the query history with like cmd-p (like sublime or atom) or something that would be amazing.7) essential: allow user to remap/redefine keyboard shortcuts.keep going! if one day this is sufficient to supplant squirrel then i'll definitely buy it. | you could also try sqlpro for postgres <link> is a good review available at <link> that i am the dev. |
postico: a modern postgresql client for os x
| you could also try sqlpro for postgres <link> is a good review available at <link> that i am the dev. | i nearly bought this when it launched due to how frustrated i get with pgadmin.as other posters noted its missing a lot of features. i knew my frustrations would not be solved.i use intellij's database stuff instead, which i "discovered" as a result for my hunt for the pgsql admin tool after postico's announcement. (until that point i had largely avoided ide database stuff because they often try to make you do insane things, like use the mouse to design tables.) when i considered the price of purchase for a stand alone pgsql admin tool and an intellij personal license [including yearly renewals] it became pretty clear what the correct choice for me was.in terms of the things i need to do as a software engineer in regards to pgsql, intellij has everything i need; plus in recent versions ideavim works more reliably. |
postico: a modern postgresql client for os x
| i nearly bought this when it launched due to how frustrated i get with pgadmin.as other posters noted its missing a lot of features. i knew my frustrations would not be solved.i use intellij's database stuff instead, which i "discovered" as a result for my hunt for the pgsql admin tool after postico's announcement. (until that point i had largely avoided ide database stuff because they often try to make you do insane things, like use the mouse to design tables.) when i considered the price of purchase for a stand alone pgsql admin tool and an intellij personal license [including yearly renewals] it became pretty clear what the correct choice for me was.in terms of the things i need to do as a software engineer in regards to pgsql, intellij has everything i need; plus in recent versions ideavim works more reliably. | my favorite postgres gui by far has been psequel.<link> |
apache cordova: after 10 months, i won't using it anymore
| on performance, the new wkwebview on ios (with nitro js + gpu rendering, including webgl), and the chromium webview on android 5.0+ (or crosswalk for android 4.0+, similar features all round), radically changes the performance story. it's almost identical to the system browsers now. facebook's comments about html5 were back in the dark ages when the webviews generally used horribly slow software rendering and didn't have jit for javascript on ios. it's a completely different picture today. in fact, our performance-sensitive html5 game engine[1] targets the ios 8 webview and crosswalk for android for making native apps, and they generally work as well as in the browser, which is very good, especially on newer devices. modern web apis are also asynchronous which helps offload work from the ui thread, and web workers can do that for arbitrary js code too. for example our game engine runs a* pathfinding in a web worker, offloading any performance impact from the cpu intensive algorithm and running it in parallel to the game.i think it's time to stop accusing webviews of being slow.[1] scirra.com | we've been using cordova for almost 2 years (one in production, mind you), so i beg to differ.granted, our applications may be different and yes, cordova, if not done right, can be excruciatingly slow. but we have managed well. simple things like properly paginating data (rather than trying to infinite scroll), cleaning up css, avoiding repeated query selections (which is a bad habit of some jquery developers) made a huge difference[1].our older app is built on jquery mobile. the latest one is ember. the next r&d project i'll try will probably use react with cordova. mobile browsers are always getting better. after a while, i have the option of using app cache instead of cordova, without any significant code changes (i'm not using plugins yet).[1] edit: and not abusing local storage. |
apache cordova: after 10 months, i won't using it anymore
| we've been using cordova for almost 2 years (one in production, mind you), so i beg to differ.granted, our applications may be different and yes, cordova, if not done right, can be excruciatingly slow. but we have managed well. simple things like properly paginating data (rather than trying to infinite scroll), cleaning up css, avoiding repeated query selections (which is a bad habit of some jquery developers) made a huge difference[1].our older app is built on jquery mobile. the latest one is ember. the next r&d project i'll try will probably use react with cordova. mobile browsers are always getting better. after a while, i have the option of using app cache instead of cordova, without any significant code changes (i'm not using plugins yet).[1] edit: and not abusing local storage. | there's a use case for everything. i for one am not wasting resources creating and maintaining two versions of fairly simple applications in a corporate byo environment, like the one i'm working in. there are plenty of convenient and easy to use frameworks out there that make positioning and screen creation just as straight forward as xcode or the android development tools.actually, i always find it a bit surprising cordova doesn't have more competition.edit; i find the title misleading. it's not so much about cordova as it is about hybrid app development |
apache cordova: after 10 months, i won't using it anymore
| there's a use case for everything. i for one am not wasting resources creating and maintaining two versions of fairly simple applications in a corporate byo environment, like the one i'm working in. there are plenty of convenient and easy to use frameworks out there that make positioning and screen creation just as straight forward as xcode or the android development tools.actually, i always find it a bit surprising cordova doesn't have more competition.edit; i find the title misleading. it's not so much about cordova as it is about hybrid app development | this is a very bad article. the real problems with cordova are:* core functionality is broken between releases. if you ask in the irc support channel, they will even tell you not to update if things work well! what if i need a new feature?* documentation is absurdly horrible or even plain wrong. i have been told several times to refer to the source code to find out how something works.* if you face any problem, chances are you will never find an answer in google. you may find some stackoverflow thread if you are lucky, where several clueless people argue about things they do not know and then arrive to a wrong conclusion. (the programming skill levels of cordova users on those communities are usually very low.)* critical functionality (things such as local notifications) is not included. you must rely on 3rd party plugins, that could be well maintained, or could be not maintained at all.yes obviously a cordova app does not look native. it's not native and it will never be. period. |
apache cordova: after 10 months, i won't using it anymore
| this is a very bad article. the real problems with cordova are:* core functionality is broken between releases. if you ask in the irc support channel, they will even tell you not to update if things work well! what if i need a new feature?* documentation is absurdly horrible or even plain wrong. i have been told several times to refer to the source code to find out how something works.* if you face any problem, chances are you will never find an answer in google. you may find some stackoverflow thread if you are lucky, where several clueless people argue about things they do not know and then arrive to a wrong conclusion. (the programming skill levels of cordova users on those communities are usually very low.)* critical functionality (things such as local notifications) is not included. you must rely on 3rd party plugins, that could be well maintained, or could be not maintained at all.yes obviously a cordova app does not look native. it's not native and it will never be. period. | so i was reading this, and the only things that kept repeating in my mind were "ionic, crosswalk, webworkers, ionic, crosswalk, webworkers..."(yes i know crosswalk is android only, but it works wonders). |
ham or spam? gmail not to be trusted for important mail
| > many thanks to several more persistent contacts of mine that helped ferret out the root cause of the problem.this blog post is extremely worthless. the 'root cause' he mentions at the end isn't discussed at all. | could you offer some more information on this?
what was the reason why your emails were marked as spam?from what i've seen while debugging such issues the problems were always from misconfigured outgoing servers and their dns, so i would be very interested in knowing why this has happened.ps. you might consider enabling comments on your blog so there is a place for such discussions. |
ham or spam? gmail not to be trusted for important mail
| could you offer some more information on this?
what was the reason why your emails were marked as spam?from what i've seen while debugging such issues the problems were always from misconfigured outgoing servers and their dns, so i would be very interested in knowing why this has happened.ps. you might consider enabling comments on your blog so there is a place for such discussions. | enable spf and dkim before jumping to uneducated conclusions please. even if it's randomly accepting for the same address during repeat testing does not indicate that it's not caring about spf or dkim, it indicates a random check!to put it into perspective, don't complain about the car, the road, weather, or the cop when you get ticketed for hitting a parked car in the rain while speeding.email is highly complex, and gmail are one of the few that are doing it right! (and per rfc's instead of making their own standards like some other unnamed companies do :) |
ham or spam? gmail not to be trusted for important mail
| enable spf and dkim before jumping to uneducated conclusions please. even if it's randomly accepting for the same address during repeat testing does not indicate that it's not caring about spf or dkim, it indicates a random check!to put it into perspective, don't complain about the car, the road, weather, or the cop when you get ticketed for hitting a parked car in the rain while speeding.email is highly complex, and gmail are one of the few that are doing it right! (and per rfc's instead of making their own standards like some other unnamed companies do :) | i was using hushmail for email up until 3 months ago. i had to switch to gmail because my emails were randomly going into spam folders of gmail users. including users that had previously emailed me (so they should have already been in the very unlikely spam list).i believe it is just a well meaning extension of gmail's spam filter but it has real anti-competitive results. i had to take the pragmatic course of action but i now view email as inherently unreliable.if any google employees are here, consider adding the rule "if email address in (list of emails addresses sent to) then not spam". it would make a lot of people's lives easier. |
ham or spam? gmail not to be trusted for important mail
| i was using hushmail for email up until 3 months ago. i had to switch to gmail because my emails were randomly going into spam folders of gmail users. including users that had previously emailed me (so they should have already been in the very unlikely spam list).i believe it is just a well meaning extension of gmail's spam filter but it has real anti-competitive results. i had to take the pragmatic course of action but i now view email as inherently unreliable.if any google employees are here, consider adding the rule "if email address in (list of emails addresses sent to) then not spam". it would make a lot of people's lives easier. | this is definitely an example of [citation needed]. so your emails are being marked as spam by google- are you sure that's google's fault? |
my diy underlit led (hikaru) skirt
| if you can look past the skimpy pictures there is an interesting message in there:> some of the western women were nice. some not. compared to china the female maker scene in the west seems incredibly conservative and hostile to women who don't conform to the blue hair and tattoos, zero-risk-non-conformist look:-) eccentric clothing and body-modification is ok- but only if it's the same kind they have. because if we look sexy the evil men will never take us seriously | i would never have guessed this needed so much tinkering and electronics. it's not immediately clear because all the pics show the same light, but the color is controlled using an app and it has (apparently) 3-5h battery life.> not only can our skirts match colors, they can chance in sync or strobe in complex patters across a group.that's awesome! neat trick. |
my diy underlit led (hikaru) skirt
| i would never have guessed this needed so much tinkering and electronics. it's not immediately clear because all the pics show the same light, but the color is controlled using an app and it has (apparently) 3-5h battery life.> not only can our skirts match colors, they can chance in sync or strobe in complex patters across a group.that's awesome! neat trick. | she has an interesting faq/bio: <link> link: <link> |
my diy underlit led (hikaru) skirt
| she has an interesting faq/bio: <link> link: <link> | this was originally posted on reddit.com/r/diy this morning with the mod and creator working together to limit the number of shitty comments. if you want to talk about the skirt/electronics with the actual maker the post is here: <link> |
my diy underlit led (hikaru) skirt
| this was originally posted on reddit.com/r/diy this morning with the mod and creator working together to limit the number of shitty comments. if you want to talk about the skirt/electronics with the actual maker the post is here: <link> | i love how she breaks the bimbo and geek stereotypes by following her own combination of personal interests. very inspiring character. |
the plan to feed the world by hacking photosynthesis
| producing enough food is basically a solved problem, distribution and hindering people to eat an everincreasing amount of meat is the problem | naive questions (largely because this is a whole area of science i'm ignorant to, but i am curious):if plants could benefit from more efficient photosynthesis, over the span of the billions of years they've been doing it, wouldn't they have evolved to do so? sure, it may benefit us in some way to assist, but how does the plant benefit?the fact they're green and not other colors could be a significant evolutionary advantage... or wouldn't we expect to see other a large diversity of other colour plants? why did green win out and not some other colour that absorbs different areas of the light spectrum?if one of the laws of nature is survival of the fittest, what do we humans know that makes us think that our ability to tinker with evolution without negative consequences is a wise decision? |
the plan to feed the world by hacking photosynthesis
| naive questions (largely because this is a whole area of science i'm ignorant to, but i am curious):if plants could benefit from more efficient photosynthesis, over the span of the billions of years they've been doing it, wouldn't they have evolved to do so? sure, it may benefit us in some way to assist, but how does the plant benefit?the fact they're green and not other colors could be a significant evolutionary advantage... or wouldn't we expect to see other a large diversity of other colour plants? why did green win out and not some other colour that absorbs different areas of the light spectrum?if one of the laws of nature is survival of the fittest, what do we humans know that makes us think that our ability to tinker with evolution without negative consequences is a wise decision? | i'm working on one of these projects, trying to make c4 photosynthesis an installable module.happy to answer questions. |
the plan to feed the world by hacking photosynthesis
| i'm working on one of these projects, trying to make c4 photosynthesis an installable module.happy to answer questions. | i believe the answer is not in agriculture but in nanofoods. the ability to produce food from manipulating basic elements.but for that we need to tame energy first, then water, then food. |
the plan to feed the world by hacking photosynthesis
| i believe the answer is not in agriculture but in nanofoods. the ability to produce food from manipulating basic elements.but for that we need to tame energy first, then water, then food. | there are some problems with plants, and one of them is that plants are, often misunderstood, live beings that are strategist by nature. if you put an improved photosyntesis in rice, this could lead to more grain of course, but also could boost the production of leaves and roots and the result could be less or none grain in the same time. or atract predators. have you consider this possibilities? |
show hn: “who is hiring?” map
| fusionbox (denver colorado) is displayed in a dutch themepark. on top of the rollercoaster 'the python', because their location is 'python'.<link>!/search/europe/51.6468119/5.05352849...
<link> | this is pretty cool. i'd advise not changing the url with every map movement and instead let the user generate a linkable url upon demand. this created quite the enormous history list after only using a few minutes. |
show hn: “who is hiring?” map
| this is pretty cool. i'd advise not changing the url with every map movement and instead let the user generate a linkable url upon demand. this created quite the enormous history list after only using a few minutes. | bug report #1:1. scroll to the bottom of the list on the right.2. click to expand the final item in the list.3. there is no visual cue that you can now scroll down further to see the expansion. the first item in the list that i click on was the final list item, and i thought that nothing had happened (note: this could just be an issue with osx's hidden scrollbars. i can't see if you've disabled it on all platforms, but lots of devs are on osx).{edit} i guess i should mention my suggestion. if you're already scrolled to the bottom of the scroll area, and then you take an action that expands the scroll area further down, your position in the scroll area should move to the "new" bottom. there are obviously caveats to this though (e.g. if scrolling to the new bottom would scroll your old position off-screen, this may be disorienting to the user depending on the content and other visual cues). {/edit}bug report #2:i tried to click the "[email protected]" at the bottom (as it's a clickable link), and was taken to a cloudflare page about how it's hiding the email address for "protection." the issue here is that the link text itself is the email address, so nothing is really hidden (except maybe from poorly written bots crawling the web).note: this is not meant to be negative or down on your work. it's really great, i just like to take the time for some constructive criticism when there the authors' attention is on the threads (and it's not a e.g. github project -- that i can see -- so i can't really just open an issue in the bug tracker). |
show hn: “who is hiring?” map
| bug report #1:1. scroll to the bottom of the list on the right.2. click to expand the final item in the list.3. there is no visual cue that you can now scroll down further to see the expansion. the first item in the list that i click on was the final list item, and i thought that nothing had happened (note: this could just be an issue with osx's hidden scrollbars. i can't see if you've disabled it on all platforms, but lots of devs are on osx).{edit} i guess i should mention my suggestion. if you're already scrolled to the bottom of the scroll area, and then you take an action that expands the scroll area further down, your position in the scroll area should move to the "new" bottom. there are obviously caveats to this though (e.g. if scrolling to the new bottom would scroll your old position off-screen, this may be disorienting to the user depending on the content and other visual cues). {/edit}bug report #2:i tried to click the "[email protected]" at the bottom (as it's a clickable link), and was taken to a cloudflare page about how it's hiding the email address for "protection." the issue here is that the link text itself is the email address, so nothing is really hidden (except maybe from poorly written bots crawling the web).note: this is not meant to be negative or down on your work. it's really great, i just like to take the time for some constructive criticism when there the authors' attention is on the threads (and it's not a e.g. github project -- that i can see -- so i can't really just open an issue in the bug tracker). | this is awesome. seriously. i never go through the regular "who is hiring?" thread because i don't have time to comb through a humongous list of unfiltered text posts, 90% of which aren't relevant to me. there have been other attempts to format the thing, but this is the best i've seen so far.one minor bug: i'm seeing a listing titled "---" that starts with "i am a junior front end developer. i eventually want to go into...". seems to have picked up a comment by accident and interpreted it as a job posting. |
show hn: “who is hiring?” map
| this is awesome. seriously. i never go through the regular "who is hiring?" thread because i don't have time to comb through a humongous list of unfiltered text posts, 90% of which aren't relevant to me. there have been other attempts to format the thing, but this is the best i've seen so far.one minor bug: i'm seeing a listing titled "---" that starts with "i am a junior front end developer. i eventually want to go into...". seems to have picked up a comment by accident and interpreted it as a job posting. | this pretty much sums up the state of the uk job market : <link> |
new electric engine improves safety of light aircraft
| at the risk of stating the obvious, many crashes would not be affected by this:cfit (controlled flight into terrain). sadly common, it's how kennedy junior died and many others.stall/spin. common on take off and landing and avoidance is a huge emphasis in training.visual flight into instrument conditions. if untrained what often happens is the pilot will end up in a spin/spiral into the ground or doing a cfit.also, running out of gas or engine failure requires the pilot to activate the backup correctly. sounds silly, but i recall a pilot crossing the english channel with her family and forgetting to switch fuel tanks which caused a crash. human factors is a huge part of training - so for this to be effective it needs to be drilled into the pilot's checklist on engine failure. also this is time taken away from finding an emergency landing field and trying to restart the primary engine.i'd say an interesting comparison is the cirrus sr20/22 which has a parachute for the plane. it gives you a great sense of security but that particular plane is the new "doctor killer" (a name given to the v-tail bonanza in the past).curious to see how this will be seen and used by industry. | why wouldn't you want to rip out your starter motor, alternator and normal battery to replace them with this? get some wins back with regards to weight and cabin space. i'm assuming some steady use would help keep the battery in good condition as well as ensuring it's tested and ready to go by definition.this being an emergency only thing how does it last? if it needs a new £5000 battery every 5 years just to sit there in case i can imagine many pilots just not being able to justify it. given the target market. |
new electric engine improves safety of light aircraft
| why wouldn't you want to rip out your starter motor, alternator and normal battery to replace them with this? get some wins back with regards to weight and cabin space. i'm assuming some steady use would help keep the battery in good condition as well as ensuring it's tested and ready to go by definition.this being an emergency only thing how does it last? if it needs a new £5000 battery every 5 years just to sit there in case i can imagine many pilots just not being able to justify it. given the target market. | why would there be a problem with the main engine? it seems like you should fix/redesign/etc that instead of adding another engine.it reminds me of code that catches all exceptions instead of fixing the problem so those exceptions can never happen. |
new electric engine improves safety of light aircraft
| why would there be a problem with the main engine? it seems like you should fix/redesign/etc that instead of adding another engine.it reminds me of code that catches all exceptions instead of fixing the problem so those exceptions can never happen. | dumb question, could this combined with the power from the regular engine give you thrust greater than the weight of your plane and potentially allow vertical take off and landing (imagine the nose pointed up, and obviously you'd need special landing legs, etc) |
new electric engine improves safety of light aircraft
| dumb question, could this combined with the power from the regular engine give you thrust greater than the weight of your plane and potentially allow vertical take off and landing (imagine the nose pointed up, and obviously you'd need special landing legs, etc) | wonderful idea. i do wonder how that changes the center of gravity and how much weight is diminished for cargo but seems well worth it. when the engine goes out you generally only have 10 seconds to decide where to land. now it seems you have many minutes to find a place. in most circumstances i'd think this is better then the parachutes for planes because you have a chance to save very expensive airplanes. |
intel's 10nm 'cannonlake' delayed, replaced by 14nm 'kaby lake'
| i think we'll enter a paradigm where r+d costs will drive the price of successive generations of cpus back up to the level of the early '90s or even before. we're near the end of the road scaling down the same designs with improved photolithography techniques. eventually, we'll find a new dimension to optimize on, and then rapidly progress in that direction, which will lower prices again. | it seems that we almost reached the limit of moore's law. 5nm seems to be a physical limit at least for sustainable changes of current technologies. |
intel's 10nm 'cannonlake' delayed, replaced by 14nm 'kaby lake'
| it seems that we almost reached the limit of moore's law. 5nm seems to be a physical limit at least for sustainable changes of current technologies. | the article is saying 10nm is delayed indefinitely. the supporting evidence is not there. intel is not commenting, and kaby lake likely just means that 10nm will take more time. after 14nm broadwell was delayed a year, this is not a big surprise to anyone.the day will come when feature shrinkage will end for silicon based chips, but it is not this day. i hope! |
intel's 10nm 'cannonlake' delayed, replaced by 14nm 'kaby lake'
| the article is saying 10nm is delayed indefinitely. the supporting evidence is not there. intel is not commenting, and kaby lake likely just means that 10nm will take more time. after 14nm broadwell was delayed a year, this is not a big surprise to anyone.the day will come when feature shrinkage will end for silicon based chips, but it is not this day. i hope! | this was like news 3 weeks ago , now its just known facts.. |
intel's 10nm 'cannonlake' delayed, replaced by 14nm 'kaby lake'
| this was like news 3 weeks ago , now its just known facts.. | a significant fraction this slowdown relates to intel’s integrating graphics with their cpu's which not only costs silicon, but also adds heat. intel has then traded most of their process gains into improving the terrible graphics performance to a near acceptable level at the cost of minimal cpu gains.sadly without real ed: competition intel quickly stagnates. and amd is still far behind the curve. |
recombine to avoid naming when naming is hard
| > naming is hard because it's a different kind of thinking from the rest of programming. we are coding along, in a nice engineering flow, and all of a sudden, we need a nice, human-readable name. we need to find compassion for the reader from within our cold, calculating programmer trance. this is very difficult.this makes me think of prescription drugs, and how they all have 2 names, one for marketing to the public, and one for marketing to doctors. [e.g. "ask your doctor if savator is right for you. (dipromelexeline)"] | when naming things is hard, it's exactly the reason why you should stop, think, and find a good, fitting name.if you have hard time naming something in your code, chances are it's because you have a nebulous understanding of that elusive thing. this is obviously bug prone. it's usually a good idea to spend a few minutes searching for a good, precise, descriptive name, and add enough comments if the entity being named is not a temporary variable.doing so not just makes later code maintenance easier, it tidies up your understanding and can even lead to finding a bug or another problem (happened to me more than once). |
recombine to avoid naming when naming is hard
| when naming things is hard, it's exactly the reason why you should stop, think, and find a good, fitting name.if you have hard time naming something in your code, chances are it's because you have a nebulous understanding of that elusive thing. this is obviously bug prone. it's usually a good idea to spend a few minutes searching for a good, precise, descriptive name, and add enough comments if the entity being named is not a temporary variable.doing so not just makes later code maintenance easier, it tidies up your understanding and can even lead to finding a bug or another problem (happened to me more than once). | as i read it, this article is, quite intelligently, recommending (or at least a consequence of their logic would be a recommendation for) using a point-free style wherever it's applicable. programming is, primarily, data transform and a focus on the transform, rather than naming the intermediate data items, is typically a lot nicer to read. name your functions, avoid naming your data if you can. |
recombine to avoid naming when naming is hard
| as i read it, this article is, quite intelligently, recommending (or at least a consequence of their logic would be a recommendation for) using a point-free style wherever it's applicable. programming is, primarily, data transform and a focus on the transform, rather than naming the intermediate data items, is typically a lot nicer to read. name your functions, avoid naming your data if you can. | bleh.i think the software development industry should stop doing such a disservice to itself, and start funding more scientific studies in software development.random, almost shower-thought hypotheses like 'naming things is hard - we should stop doing it' are given way too much credibility with nothing to back them up. |
recombine to avoid naming when naming is hard
| bleh.i think the software development industry should stop doing such a disservice to itself, and start funding more scientific studies in software development.random, almost shower-thought hypotheses like 'naming things is hard - we should stop doing it' are given way too much credibility with nothing to back them up. | this article is taking its readers down a really dumb path."at all cost" even at the cost of readability?it also ignores the possibility that good names do exist, and that they contribute a lot to maintainability.the suggestion made is when a good name "cannot" be found, you should try to avoid naming. no. bad suggestion.when a good name cannot be found, you probably have muddied up the problem, and should rethink it. or try harder to find a good name. also re-examine your ideas about what is "good", avoiding false metrics such as "names need to be under three characters long". |
'sin free facebook' attracts thousands
| i don't think these alternate social networks will ever displace facebook, but instead become the preferred niches. facebook becomes the bland starbucks you can find everyone at, even if there's a trendier coffee shop a block away you'd rather go to most days. | how strict is their definition of christian? do you have to affirm the athanasian creed and indivisibility and coeternity of the trinity as part of the signup process? |
'sin free facebook' attracts thousands
| how strict is their definition of christian? do you have to affirm the athanasian creed and indivisibility and coeternity of the trinity as part of the signup process? | for those unaware of the context, there's recently been a huge growth on fundamentalist "christian" religious churches in brazil. they have their own parliamentary representatives and push the hate speech agenda pretty hard - mainly against other religions, gay people and "communism".in a recent episode, a 10-year old was attacked with stones for wearing typical candomblé clothes (an afro-brazilian religion). they've also been asking the "flock" to not buy products from companies that advertise for a gay public, and communism in all its forms (some of the leaders consider the government giving money to poor people, be it through social programs or straight cash, "communist depravity").this specific project gained a lot of steam after facebook's pride celebration - all the rainbow pictures pushed some folks too hard...pretty crazy twilight zone/black mirror material. |
'sin free facebook' attracts thousands
| for those unaware of the context, there's recently been a huge growth on fundamentalist "christian" religious churches in brazil. they have their own parliamentary representatives and push the hate speech agenda pretty hard - mainly against other religions, gay people and "communism".in a recent episode, a 10-year old was attacked with stones for wearing typical candomblé clothes (an afro-brazilian religion). they've also been asking the "flock" to not buy products from companies that advertise for a gay public, and communism in all its forms (some of the leaders consider the government giving money to poor people, be it through social programs or straight cash, "communist depravity").this specific project gained a lot of steam after facebook's pride celebration - all the rainbow pictures pushed some folks too hard...pretty crazy twilight zone/black mirror material. | i just realized i don't even shudder at the quality of bbc's "journalism" anymore. |
'sin free facebook' attracts thousands
| i just realized i don't even shudder at the quality of bbc's "journalism" anymore. | phariseesbook> gay material is also banned from the social media platform.i guess my gay religious friends aren't welcome there. |
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