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A comment on Gravitricity – Fast, long-life energy storage. Parent comment

Re:Gravitricity – Fast, long-life energy storage by teekert on Wednesday September 09, 2020 @04:34AM (#24418734)
A flywheel in a vacuum floating on a magnet also just hangs there. But indeed the weight solution seems more simple.
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Re:Gravitricity – Fast, long-life energy storage by mekkkkkk on Wednesday September 09, 2020 @09:09AM (#24420599)
You would need to supply a lot of power just to maintain a vacuum and levitating your flywheel. Not sure this solution would be very effective. Maybe with superconductors, but then cooling is your problem instead.
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Re:Gravitricity – Fast, long-life energy storage by teekert on Wednesday September 09, 2020 @09:21AM (#24420702)
Or use normal magnets (non-electro magnets) The vaccuum, sure, this may take some energy depending on the insulation.
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