is this an eternal mover???

I am researching perpetuum mobile and I read on this website about a perpetuum mobile. it is reported that it does not generate or use any energy, does that mean it keeps moving forever???

question 5478

Asker: manu, 11 years old

Answer

Such a thing cannot supply energy, since no one puts energy into the system. Permanent magnets cannot provide net energy.

It is often difficult to find the error of reasoning in a so-called perpetuum mobile. I have the impression that there is an equilibrium point between two fixed magnets and that the rotating magnet eventually comes to rest there.

Answered by

Prof Walter Lauriks

Physics Acoustics

Catholic University of Leuven
Old Market 13 3000 Leuven
https://www.kuleuven.be/

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