5 ms·

Dammit, what shall I fill my blimp with now? Hot air?

• grinich 16y ago
  Hydrogen!
  • cubicle67 16y ago
    just don't coat it with an aluminium based paint
    • epochwolf 16y ago
      I think a magnesium based paint would work better.
• rmundo 16y ago
  I was just wondering earlier today how long world helium reserves could last. For airships a 90% reduction in carbon emissions won't matter if helium becomes the economic bottleneck. Sort of depressing how soon we seem to be reaching a point where depletion of earth resources is inevitable. Hydrogen would be interesting if we could make it safe enough. It could double as a fuel source for the ships, too.
  • Groxx 16y ago
    Unless we find a way to make profitable fusion.