![Can anyone explain why something like this isnt free energy, if I use a small rotor to rotate the main magnet, compared to the amount of energy I can create? : r/ElectroBOOM Can anyone explain why something like this isnt free energy, if I use a small rotor to rotate the main magnet, compared to the amount of energy I can create? : r/ElectroBOOM](https://i.ytimg.com/vi/4Ge2h8Apgd8/maxresdefault.jpg)
Can anyone explain why something like this isnt free energy, if I use a small rotor to rotate the main magnet, compared to the amount of energy I can create? : r/ElectroBOOM
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![electromagnetism - Why can't rotating magnets in space or zero gravity be used to create infinite energy? - Physics Stack Exchange electromagnetism - Why can't rotating magnets in space or zero gravity be used to create infinite energy? - Physics Stack Exchange](https://i.stack.imgur.com/j9FDP.png)
electromagnetism - Why can't rotating magnets in space or zero gravity be used to create infinite energy? - Physics Stack Exchange
![Q: If the world is a giant magnet, how come we can't build a repelling magnet that can float? | Ask a Mathematician / Ask a Physicist Q: If the world is a giant magnet, how come we can't build a repelling magnet that can float? | Ask a Mathematician / Ask a Physicist](https://www.askamathematician.com/wp-content/uploads/2017/07/hourglassfigure.jpg)