So my buddy and I watched that old Keanu Reeves film Point Break the other night, and we got to talking. We're thinking that more air pressure causes you to bleed at a more furious pace. So if someone's in a knife fight in a plane, is cut, say across the arm, then jumps out of the airplane to parachute to the ground - will they bleed to death before they hit the ground because the air pressure is causing them to bleed so quickly? It doesn't have to be skydiving, it could be on like, Everest. Will you bleed crazy fast higher up? I know that there are a lot of variables here, but I'm just curious if the thinking is sound.
posted by Sully on Jun 7, 2009 - 22 answers

I want to put tennis balls in a tank/bag that I can pressurize to about ~20-30 psi (perhaps more). Do you know where I can find such a tank(or what it would be called) for a reasonable price (less than $50) ? It should be able to hold at least 30 balls. Used would be fine.
posted by tallpaul on Sep 10, 2007 - 10 answers

How much lower is the air pressure on the 23rd floor of a standard apartment building than at ground level? [more inside]
posted by onshi on Dec 19, 2005 - 21 answers

My old apartment had extremely leaky single-pane windows, so in the winter my roommate and I would always cover them with tightly sealed heat-shrink plastic film. Why would the plastic nearly always be bulging inward? [more inside]
posted by Galvatron on Dec 10, 2005 - 18 answers