4 ms·
Maybe the balloon could condense water in its environment and electrolyze it to refill itself with the produced hydrogen. (Though I'm pretty sure you also need
by sehugg 8y ago
Maybe the balloon could condense water in its environment and electrolyze it to refill itself with the produced hydrogen. (Though I'm pretty sure you also need salt.)
- deleted 8y ago[deleted]
- thrower123 8y agoIf a balloon is relatively small, and designed never to come down, would it be such a bad idea to use hydrogen as the lifting gas? We're understandably a little gunshy about using hydrogen after the Hindenburg, but surely we could come up with some safer designs now.
- FlyMoreRockets 8y agoHydrogen is a great lifting gas, but because the molecule is so small, it leaks out easily.
- londons_explore 8y agoThere is very little water in the air at those altitudes. Also, electrolysis uses a lot of energy.