h a l f b a k e r yMake mine a double.
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Remember those glass globes with the spinning black and white vanes in them? Well, this is SORT of like that, but on a larger scale.
Connect a set of solar sails so that the solar radiation turns the assembly the way wind turns an anemometer. Build in a coil that generates electricity by using the
earth's magnetosphere as a huge fixed magnet. Use the power generated for a satellite or space station, or microwave the power to earth.
Crookes Radiometer
http://en.wikipedia.../Crookes_radiometer
isn't actually powered by light pressure, though opinions differ on what exactly does provide the motive force ... [batou, Apr 21 2009]
[link]
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//using the earth's magnetosphere as a huge fixed magnet// I agree it is huge, but it is also WEAK and even weaker in space, so don't expect to get much power. |
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The structure would need to be so unbelievably Dyson-sphere-level big and would produce such miniscule amounts of energy that it might just be the least efficient generator of all time. [+] |
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Least efficient generator of all time +. |
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Wouldn't actually work in high vacuum, but a bun anyway for both a fun idea (who doesn't love radiometers) and the magnificent scope of it ! |
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It's actually a little-known fact that the Earth's rotation is
driven by assymetric solar radiometerish forces. |
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one of those little known controversies.... |
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