A sample of this motor:
[https://www.youtube.com/watch?v=LXBYMiNH1nE](https://www.youtube.com/watch?v=LXBYMiNH1nE)
In: 87
Imagine a gravity powered generator. You lift up a big heavy object, then release it and let it slowly wind out a pulley and a series of gears to “fall” slowly and spin your motor to turn that action into energy.
That’s not a perpetual motion machine. Once the weight hits the bottom, that’s it. You have to put energy back into the system to lift the weight up again and reset it.
And the amount of energy you put in is always going to be more than you get back out.
Magnet ‘perpetual motion machines’ work exactly the same way, but you’re ‘dropping’ the weight into a magnetic field instead of gravity. To get any energy out of it, you first have to put *more* energy into it by pulling the object away from the magnet again so it can “fall” back towards the magnet again.
Magnets don’t add energy to the system, the same way gravity doesn’t add energy. They just define the lowest energy state that you then have to pull the other part of the generator away from, so that you can then recapture *some* of that energy as it reverts back to the lowest energy state.
That’s exactly what’s happening in the video. The person is putting all the energy into the system, not the magnets, by pulling the arms *out* of their lowest energy state, essentially winding it up, giving it potential energy, and then releasing it to ‘fall’ back into the lowest energy state over a few spins before it eventually stops and has to be pulled back again.
Imagine a gravity powered generator. You lift up a big heavy object, then release it and let it slowly wind out a pulley and a series of gears to “fall” slowly and spin your motor to turn that action into energy.
That’s not a perpetual motion machine. Once the weight hits the bottom, that’s it. You have to put energy back into the system to lift the weight up again and reset it.
And the amount of energy you put in is always going to be more than you get back out.
Magnet ‘perpetual motion machines’ work exactly the same way, but you’re ‘dropping’ the weight into a magnetic field instead of gravity. To get any energy out of it, you first have to put *more* energy into it by pulling the object away from the magnet again so it can “fall” back towards the magnet again.
Magnets don’t add energy to the system, the same way gravity doesn’t add energy. They just define the lowest energy state that you then have to pull the other part of the generator away from, so that you can then recapture *some* of that energy as it reverts back to the lowest energy state.
That’s exactly what’s happening in the video. The person is putting all the energy into the system, not the magnets, by pulling the arms *out* of their lowest energy state, essentially winding it up, giving it potential energy, and then releasing it to ‘fall’ back into the lowest energy state over a few spins before it eventually stops and has to be pulled back again.
Think of magnets like hills. You can roll a tire down a hill to gain momentum, but it loses it when rolling up the next hill. You can’t arrange a series of hills in such a way, that a tire both gains speed and at the end is back to the baseline height. (You can throw a tire down a well, it will go superfast, but it will end up at the bottom of a well, which isn’t useful)
Magnets have a potential around them, just like hills – you can use that once to do something when you are on top, but you can’t roll down the same hill twice. The potential alone can’t add energy to the system.
Think of magnets like hills. You can roll a tire down a hill to gain momentum, but it loses it when rolling up the next hill. You can’t arrange a series of hills in such a way, that a tire both gains speed and at the end is back to the baseline height. (You can throw a tire down a well, it will go superfast, but it will end up at the bottom of a well, which isn’t useful)
Magnets have a potential around them, just like hills – you can use that once to do something when you are on top, but you can’t roll down the same hill twice. The potential alone can’t add energy to the system.
Think of magnets like hills. You can roll a tire down a hill to gain momentum, but it loses it when rolling up the next hill. You can’t arrange a series of hills in such a way, that a tire both gains speed and at the end is back to the baseline height. (You can throw a tire down a well, it will go superfast, but it will end up at the bottom of a well, which isn’t useful)
Magnets have a potential around them, just like hills – you can use that once to do something when you are on top, but you can’t roll down the same hill twice. The potential alone can’t add energy to the system.
In order for a magnet to repel, the same amount of energy has to be spent pushing into its field. Even if you arrange the magnets in a circle like that, and use the repulsion of one magnet to push it into another magnet, to make it push it into the next, and so on, all the energy is still being cancelled out.
If it takes X energy to push repelling magnets close together, the energy from that repulsion will only equal X at most. There is no gain.
In order for a magnet to repel, the same amount of energy has to be spent pushing into its field. Even if you arrange the magnets in a circle like that, and use the repulsion of one magnet to push it into another magnet, to make it push it into the next, and so on, all the energy is still being cancelled out.
If it takes X energy to push repelling magnets close together, the energy from that repulsion will only equal X at most. There is no gain.
In order for a magnet to repel, the same amount of energy has to be spent pushing into its field. Even if you arrange the magnets in a circle like that, and use the repulsion of one magnet to push it into another magnet, to make it push it into the next, and so on, all the energy is still being cancelled out.
If it takes X energy to push repelling magnets close together, the energy from that repulsion will only equal X at most. There is no gain.
How do you, say, throw a ball?
You hold the ball in your hand, and then you swing your arm, and THEN you RELEASE. If you don’t release the ball, all the energy you use to swing is wasted, and you start from the beginning, with a ball in your hand.
An electrical motor (most conventional ones) use pairs of electromagnets to move the moving parts a.k.a Rotor. The idea is, you power the closest magnet first to pull the rotor towards it. At certain point, the motor will switch off (or release) this pair, and power up the next pair. And the cycle of powering on a pair and then switching to the next continues to keep the motor moving.
This is the reason motors use electromagnets, magnets that can be turned on and off with electricity. A permanent magnet cannot turn on and off on command like that, so you end up swinging but not releasing the ball, which is useless.
How do you, say, throw a ball?
You hold the ball in your hand, and then you swing your arm, and THEN you RELEASE. If you don’t release the ball, all the energy you use to swing is wasted, and you start from the beginning, with a ball in your hand.
An electrical motor (most conventional ones) use pairs of electromagnets to move the moving parts a.k.a Rotor. The idea is, you power the closest magnet first to pull the rotor towards it. At certain point, the motor will switch off (or release) this pair, and power up the next pair. And the cycle of powering on a pair and then switching to the next continues to keep the motor moving.
This is the reason motors use electromagnets, magnets that can be turned on and off with electricity. A permanent magnet cannot turn on and off on command like that, so you end up swinging but not releasing the ball, which is useless.
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