3 ms·
Vacuum only gets you 7% more lifting force over hydrogen: * https://en.wikipedia.org/wiki/Vacuum_airship#Principle https://en.wikipedia.org/wiki/Vacuum_airship
by upofadown 8y ago
Vacuum only gets you 7% more lifting force over hydrogen:
* https://en.wikipedia.org/wiki/Vacuum_airship#Principle https://en.wikipedia.org/wiki/Vacuum_airship#Principle