Birdwatch Note Rating
2023-11-04 15:51:41 UTC - HELPFUL
Rated by Participant: 543D064DCD3E973E779C98641C8D6477D2620D9408188C846200BFA200A87DCB
Participant Details
Original Note:
There is currently no permanent magnet able to create free energy as mentioned here. https://physics.stackexchange.com/questions/216527/do-magnets-ever-lose-their-magnetism-and-if-so-how-long-does-it-take TLDR/ELI5 : Magnets lose their "energy" when their structure change. In this case, heat will change the structure of the magnet and make it useless. Changing a magnet is not free.
All Note Details