• Ashyr
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    11 months ago

    Helium isn’t exactly an abundant resource either, is it? I’m all for a future with a sky dotted with airships, but how could you possibly scale this up?

    • Gregorech@lemmy.world
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      11 months ago

      I thought it was an abundant resource just not here, awkward places like the moon and sun.

      • Eezyville
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        11 months ago

        Man I can’t wait till we’re able to harvest helium from the Sun! That means that we made to the big leagues.

    • Fermion@feddit.nl
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      11 months ago

      Hydrogen has about half the density of helium. The fire risk is notoriously unpopular, however.

      Wide-spread adoption of airships would almost certainly have to use hydrogen.