Perpetual motion describes "Motion that continues indefinitely without any external source of energy; impossible in practice because of friction." It can also be described as "the motion of a hypothetical machine which, once activated, would run forever unless subject to an external force or to ...
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2k views
What is the fallacy in this infinite motion machine?
I realize this isn't possible, but I can't see why not, especially if you change the model a little bit so that the balls simply travel through a tube of water on the way up, rather than exactly ...
9
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3answers
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Can magnets rotate infinitely?
There are many videos on youtube in which people arranged magnets in circle and rotated one placing in middle of that circle on a shaft, and the magnet (magnet motor) starts madly and continues its ...
11
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5answers
977 views
Can someone explain the science behind MIT's 230% efficient LEDs?
I was reading Gizmodo the other day and I didn't quite understand the Physics behind this. Could anybody shed some light on how this effect actually works?
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2answers
117 views
Matter - Antimatter Reactory Practicality
With current technology, would the energy released by a matter-antimatter annihilation be more than the energy needed to created the antimatter in the first place? Would it be worth it? Just curious, ...
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2answers
1k views
Why does the “Troll-Mobile” not work?
See image:
If I'm not totally dumb the car would move when the right magnet would not be attached to the car, at same distance of the booth magnets.
So why would it not move?
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1answer
241 views
Are perpetual magnetic motors a scam? [duplicate]
I read articles and watched videos and more videos where people say they've built perpetual magnetic motors.
I do not see any proof that this can work and also I do not see proof that it is wrong. ...
