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
A rebreather absorbs the exhaled carbon dioxide from the breath and then recycles the air which still contains significant amounts of oxygen so that it can be breathed a second time enabling the air supply to last longer than would normally be the case. https://youtu.be/2_OL4sOyeEw
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