Why a perpetual magnet engines do not work?

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A sample of this motor:

[https://www.youtube.com/watch?v=LXBYMiNH1nE](https://www.youtube.com/watch?v=LXBYMiNH1nE)

In: 87

51 Answers

Anonymous 0 Comments

What if we don’t need a perpetual motion machine but one that lasts 50 years and then reset it again for another 50 years

Anonymous 0 Comments

Each magnet pulls the rotor towards itself, so at first a magnet in front of the rotor accelerates it. But for the rotor to rotate further, it needs to move away from the magnet it was just being attracted to again, and that uses about as much energy as the rotor gained from the previous attraction. In sum, nothing is added or gained and you would’ve been better off not using any magnets at all.

Anonymous 0 Comments

Each magnet pulls the rotor towards itself, so at first a magnet in front of the rotor accelerates it. But for the rotor to rotate further, it needs to move away from the magnet it was just being attracted to again, and that uses about as much energy as the rotor gained from the previous attraction. In sum, nothing is added or gained and you would’ve been better off not using any magnets at all.

Anonymous 0 Comments

Each magnet pulls the rotor towards itself, so at first a magnet in front of the rotor accelerates it. But for the rotor to rotate further, it needs to move away from the magnet it was just being attracted to again, and that uses about as much energy as the rotor gained from the previous attraction. In sum, nothing is added or gained and you would’ve been better off not using any magnets at all.

Anonymous 0 Comments

Because there’s no power. It’s like dropping a bouncy ball. Sure the ball bounces, but eventually it will stop if you don’t continue to bounce it. The ball doesn’t have any power of its own. Just like the magnets.

Anonymous 0 Comments

Because there’s no power. It’s like dropping a bouncy ball. Sure the ball bounces, but eventually it will stop if you don’t continue to bounce it. The ball doesn’t have any power of its own. Just like the magnets.

Anonymous 0 Comments

Because there’s no power. It’s like dropping a bouncy ball. Sure the ball bounces, but eventually it will stop if you don’t continue to bounce it. The ball doesn’t have any power of its own. Just like the magnets.

Anonymous 0 Comments

Energy = force * distance. If you have two magnets attracting each other, you can get a little energy out by letting them move towards each other, but then you’d have to put that same energy right back in to move them away from each other, plus any energy that went to useful work, friction, and other losses.

At best you’re making an energy storage device, but not a very good one compared to a flywheel or battery.

tl;dr: the magnets push just as much slowing you down as they do speeding you up.

Anonymous 0 Comments

Energy = force * distance. If you have two magnets attracting each other, you can get a little energy out by letting them move towards each other, but then you’d have to put that same energy right back in to move them away from each other, plus any energy that went to useful work, friction, and other losses.

At best you’re making an energy storage device, but not a very good one compared to a flywheel or battery.

tl;dr: the magnets push just as much slowing you down as they do speeding you up.

Anonymous 0 Comments

Energy = force * distance. If you have two magnets attracting each other, you can get a little energy out by letting them move towards each other, but then you’d have to put that same energy right back in to move them away from each other, plus any energy that went to useful work, friction, and other losses.

At best you’re making an energy storage device, but not a very good one compared to a flywheel or battery.

tl;dr: the magnets push just as much slowing you down as they do speeding you up.