Why aren't free-energy dynamos used if they work?

[John231]

I really wonder if there was because I watch on youtube videos about free-energy generators/dynamos. If there was why wouldn't we use it for houses and power plants?? Or it doesn't produce much power?
Thanks!

 

[russ_watters]

Your instinct is correct: if they worked, they'd be everywhere. Those videos are fraudulent. And we don't discuss such things here because doing so attracts crackpots. Thread locked.