Physics question? Why doesn't this work?
What if you applied the same idea to a generator? (look at the picture with the circles and rectangles) Wouldn't the bar magnets continue to repel each other and make the generator wheel would spin forever? If the wheel was balanced and was given a little push to get things going, I don't see what the problem would be.
I'm not planning on building this machine, so trial and error is out of the question for me.