3 ms·
I guess it's theoretically possible, but not really on earth. https://en.wikipedia.org/wiki/Vacuum_airship https://en.wikipedia.org/wiki/Vacuum_airship
by RandallBrown 3y ago
I guess it's theoretically possible, but not really on earth.
https://en.wikipedia.org/wiki/Vacuum_airship https://en.wikipedia.org/wiki/Vacuum_airship