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Some of the first Science Fiction stories had man going to the moon, launched from a canon.
If the energy needed to slingshot or "spin" it into orbit is less than using a rocket, lots of thinks can be put in orbit. It will still take a lot of energy to get it spinning fast enough to be orbital.
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Glen
49 Year member of the Porsche Club of America
1985 911 Carrera; 2017 Macan
1986 El Camino with Fuel Injected 350 Crate Engine
My Motto: I will never be too old to have a happy childhood!
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