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The idea is much older: First proposed by Italian Jesuit priest Francesco Lana de Terzi in 1670... https://en.wikipedia.org/wiki/Vacuum_airship https://en.wik

by raylad 4y ago

The idea is much older: First proposed by Italian Jesuit priest Francesco Lana de Terzi in 1670... https://en.wikipedia.org/wiki/Vacuum_airship https://en.wikipedia.org/wiki/Vacuum_airship