If you don't think it's safe to fly it over cities with 5 million+ people, then flying it over cities with 1 million is also not OK. FAA authorisation is mentioned multiple times but why doesn't this ...
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Flying Cities - Are They Even Possible?
The year is 1962, America has just sent an astronaut to space and an engineer with the name Buckminster Fuller has just patented the Tensile-Integrity Structure. He looks to the empty blue sky, its ...
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