11 ms·
> Except for one person with a blocked nose, all woke up within two minutes of the smell reaching them. Seems like a pretty bad failure mode, if it doesn’t wor
by RcouF1uZ4gsC 6y ago
> Except for one person with a blocked nose, all woke up within two minutes of the smell reaching them.
Seems like a pretty bad failure mode, if it doesn’t work when people have a bad cold.
Also, the time delay is an issue. An audible alarm can wake people up much faster.
One thing they might be to use an sound based alarm, but that has enough low frequencies that it makes your skull resonate. A lot of dead people, may have conduction issues, and the sound can be transmitted through bone. For the people that have a neurological basis for deafness, even sounds that you cannot perceive if they resonate the right structures can make you feel uncomfortable.
- lowdest 6y agoSeems like a bed/pillow rumble pak is what you'd want for being asleep, and the common strobe light should suffice while awake.
- pmiller2 6y agoI've seen fire alarms that use very bright, flashing lights. Those might very well wake someone up from a dead sleep, but I'm not sure what the research says on them.
- jagger27 6y agoAs someone who slept under one that would start flashing just before the sound started, oh yes, the light alone can wake you up. It's like a flash of lightning, or at least a really bright camera flash.
- csunbird 6y agoActually, smart watches could be very helpful in that case: If an alarm happens, the watch can vibrate very intensely to wake the user up.