The smoke alarms in my apartment building are both ridiculously sensitive and ridiculously loud. They regularly go off even when thereâs no smoke, and I often have to scramble up on top of a chair to reset them because a pot of boiling water is producing steam.here There's Smoke ... There are two main types of smoke alarms used in homes: ionization detectors and photoelectric detectors. Inside the ionization ones thereâs an ionization chamber with two plates and a source of ionizing radiation.
Preventing Running Aground. A pleasure craft is grounded (runs aground) when it gets stuck on the bottom. Never assume that water is deep enough just because you are away from the shore. Also, donât presume that all shallow hazards will be marked by a danger buoy.
In this case one tack becomes more favorable than the other - it angles more closely in the direction you wish to travel than the other tack does. Then the best strategy is to stay on this favorable tack as much as possible, and shorten the time you need to sail on the unfavorable tack. This will result in a faster passage with less wasted effort.