h a l f b a k e r yIt's not a thing. It will be a thing.
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A large spinning umbrella with rotor spikes sends the air out and creates lift
The umbrella also serves as a kite catching the drift but always stays up because of the heavier handle and the lift of the lighter thinner air inside.
The spinning of the umbrella also gives it stability. The spinning
movement may be achieved by rotors or perhaps some other propulsion around the umbrella rim.
Like this?
https://youtu.be/pexU94GjoQ4
[xenzag, Dec 25 2023]
[link]
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See link for idea in operation when fitted to a car. |
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Great movie. Especially the "doesn't seem to work". |
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That was a single "jumping" wing flapping open umbrella. This one is closed and expected to behave as a light air balloon. |
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