Exploring Mars â Water-ice clouds, polar ice and other geographic features can be seen in this full-disk image of Mars from 2011. NASA's Mars Curiosity Rover touched down on the planet on August 6, 2012. Take a look at stunning photographs of Mars over the years. Check out images from the Mars rover Curiosity.
Ethash is the proof-of-work function in Ethereum-based blockchain currencies. It uses Keccak, a hash function eventually standardized to SHA-3. These two are different, and should not be confused. From version 1.0 Ethash has been designed to be ASIC-resistant via memory-hardness (harder to implement in special ASIC chips) and easily verifiable. It also uses a slightly modified version of earlier Dagger and Hashimoto hashes to remove computational overhead.
Acetaldehyde is a toxic substance, implicated in the alcohol flush reaction and in certain physical sequelae of alcohol consumption.See also: alcohol-sensitizing drug; disulfiram. acute amnesia See blackout; intoxication, pathological. acute intoxication (F1x.0) See intoxication.thanol (C2H5OH, ethyl alcohol) is one of this class of compounds, and is the main psychoactive ingredient in alcoholic beverages. By extension the term alcohol is also used to refer to alcoholic beverages. Ethanol results from the fermentation of sugar by yeast.