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Q&A Practicality of a ship-sized twisted-rubber engine

I was considering this answer I wrote: https://worldbuilding.stackexchange.com/a/21374/75 It got me to wondering... if we had a flying sailing ship with a twisted-rubber energy storage device that...

2 answers  ·  posted 5y ago by Monty Wild‭  ·  last activity 5y ago by Monty Wild‭

Question reality-check materials transportation transport age-of-sail