Hey all, I'm hoping you can help me out on this. First, I should mention that I'm not one of those folks who believes in "free energy." I submit to the law of energy conservation, but recently I've been trying to figure out why a perpetual motion machine made of permanent magnets wouldn't work. Here's a reference of sorts: Now, I get that I'm missing something, but could I get a clear explanation of why that thing isn't really spinning on its own? (And please be nice. I KNOW I don't know as much as some people here, that's why I'm asking in the first place). On a related note, even if a machine similar to the one in the link isn't creating "free energy," would it be possible to build one that lasts a long time? Why wouldn't that be a viable alternative to current energy sources? I'm not looking to run out and try this myself, I'm here to learn! Thanks in advance!