4 ms·
Helium is expensive, which is why they are considering Hydrogen. Yes, that’s what was in the Hindenburg, and yes, it can go big boom, but that’s the idea.
by bertil 3y ago
Helium is expensive, which is why they are considering Hydrogen. Yes, that’s what was in the Hindenburg, and yes, it can go big boom, but that’s the idea.
- mirekrusin 3y agoWhy not hot air instead?
- bertil 3y agoThere is an endless supply of that, but it's not much lighter than cold air, so it doesn't have a great lifting power.