Darwin Claims Another!

McRat

Diesel Hotrodder
Aug 2, 2006
11,249
26
38
64
Norco CA
www.mcratracing.com
If you are in a pool, your head is not much above water. The air is normally ~80/20, nitrogen to oxygen, even if it just reduced the ratio to 90/10, and you're drunk, that's pretty dangerous. People have been killed by asphyxiation when climbing into empty tanks that have been purged with nitrogen.

It's some to do to look cool, but swimming is a no-no.

And yes, the nitrogen bond for N2 is stupid strong since it's a triple bond. It normally takes very high temperatures for N2 to react with anything, hence the Cool EGR on our trucks to reduce NOx from high combustion temps.
 

baggedLB7

Goer
May 1, 2011
688
4
18
Utah
If you are in a pool, your head is not much above water.
I think this is spot on plus there is probably 8-10 inches of lip between the water and the top edge of the pool and I bet it just sat in there and displaced every bit of oxygen in that area of the pool.
The air we breath is 20.8% oxygen and if I remember right anything below 19.5% oxygen you can not live on.
 

RENODMAX

Dead Wrong
Mar 4, 2008
3,602
0
0
You can survive at lesser concentrations its just a matter of duration. People in house fires brbreathe in CO which has a greater affinity for red blood cells than o2. But if you have zero oxygen you will pass out rather quickly as your blood gases can change pretty quick.