Sometimes you see a video and think WTF. Then you think it out and it makes a lot of sense. Finally your imagination runs away and you say”what if”?This is one of those videos which I am sure will create some debate but more importantly fire the imagination.
I could be a spoil sport and tell you to reverse the reaction would take at least the same or more energy….but I will refrain this time.
Place a ball or disc magnet on a narrow triangle magntic metal sheet (such as: iron or steel), the magnet will rolling from sharp point to wide end. It can be used to push a load from A to B. Disc magnet is rolling on the sheet. Ball-magnet is rolling on the sheet same time it is fast spinning.