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originally posted by: Woodcarver
a reply to: swanne
Replace your motor with a turbine wind mill and put your magnets on a longer cylinder with a nice big fly wheel, add a much longer copper coil around the cylinder. You will not need to draw power from your system to re spin the string. It will still not be a perpetual motion machine but it would be much more efficient. You could def charge a battery bank. Replace all of your house lights with led's, and watch your electricity bill cut in half.
Basically a wind powered generator, but replacing The shaft with the string.
The TL;DR version is we now have a new entry for the Museum of unworkable devices
originally posted by: Night Star
I'm with Jess in wanting to congratulate you on your 150th thread, but I have no idea what you're talking about. LOL
This museum is a celebration of fascinating devices that don't work. It houses diverse examples of the perverse genius of inventors who refused to let their thinking be intimidated by the laws of nature, remaining optimistic in the face of repeated failures.
That's another entry for the same museum. At least Swanne explained his idea well enough to understand where it won't work, but I've never seen a good enough explanation of how that rarenergia contraption is supposed to work, though it really doesn't matter since no explanation would make it work. Anyway the best way to harvest energy from gravity is hydroelectric, though technically the original energy source is solar which evaporates the water so it can fall as rainfall and flow over the dam. I suppose tidal energy could be considered a form of energy extraction which actually works partly based on gravity, but I think the real source is actually coming from the angular momentum of the Earth, which holds a lot more energy than Swanne's twisted string, but it's not infinite so we could slow the Earth's rotation if we extract too much that way. The Earth's rotation is already slowing even without that, though not very much on human time scales.
originally posted by: hellobruce
Then there is gravity... I would love to see this working!