All Questions
4
questions
4
votes
3
answers
575
views
Why can human body sustain relatively high (e.g. up to 30 atm) external pressure?
I found out from the Internet that for average people it's fine to sustain up to 30 atm external pressure, for example when diving. However, given a typical human palm size of 80 cm$^2$, 1 atm means ...
- 195
-1
votes
3
answers
114
views
Why is there less oxygen in a pressurised plane that is flying?
Children who have temporary lung problems like asthma attacks have to go on oxygen to heal. (At a hospital.) Immediately after a health incident they can’t go on an aeroplane because there is ...
- 861
8
votes
1
answer
7k
views
Weather forecasting with coffee bubbles
The other day I saw this life-hack:
And I was wondering how true it is. First of all, I always thought(listening to weather forecasts) that low-pressure atmosphere is what correlates with rain; ...
- 6,004
2
votes
3
answers
6k
views
Why the pressure of atmosphere doesn't crush you when you e.g. walk outside?
Why the pressure of atmosphere doesn't crush you when you e.g. walk outside? I mean the density of air is $1.26 kg/m^3$, so with $100 km$ above us, it exerts much pressure on you when you walk outside....
- 735