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kleinbl00 · 3170 days ago · link · · parent · post: And in Oldey-Tymey news, Lockheed Martin has just sold a half billion dollars worth of *Airships.*
We could also just replace the atmosphere with sodium hexafluoride. It makes airship design much simpler.
WanderingEng · 3170 days ago · link ·
I assume you mean sulfur hexaflouride. A coworker had a balloon of that, and it's so weird seeing a balloon fall to the ground like it's filled with rocks. It's nice and inert, too! So inert it's used for high voltage insulation.