• disguy_ovahea@lemmy.world
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      3 days ago

      The Empire State Building was designed as a zeppelin docking station. Boarding/de-boarding and flight times are barely competitive with the modern subway. It was fun and novel, but quite impractical.

    • chiliedogg@lemmy.world
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      3 days ago

      It’s a Noble gas that we can’t synthesize chemically and is light enough it just floats away forever when released. And it provides less lift than hydrogen.

      Helium’s sole advantage is also why it’s about the least-renewable thing out there.