How does a scuba diver’s oxygen tank last for ~1 hour but an astronaut’s lasts ~6-8 hours when both tanks are around the same size?
In: Technology
1/ it’s air not oxygen
2/ one is a closed system – astronauts and wastes very little the other is an open system and wastes a lot
3/ one is under pressure (diver ) one is not astronaut
So a closed system used by a diver at 1m would last the same as an astronauts
If we put both the diver and the astronaut at 100m they both would consume their air quicker as the air is under pressure so squashed by 10x so they need 10x more of it to fill their lungs and breath
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