Doesn't one magnet pushing/pulling another magnet create energy (even a little)?

Question

If a "rare earth" magnet pushes another magnet, it doesn't loose it's energy but does create the force to push the other magnet. Wouldn't this then be a magnet creating energy? If a group of rare earth magnets were put together in a circle propelling one another, wouldn't they spin by themselves (when friction allows). And wouldn't adding "magnaview fluid" decrease the friction to allow even more energy output?

Say for example, you placed 10 Neodymium Supermagnets in a contained circle coated in magnaview fluid propelling one another, all connected to rubber posts that lead to a gear in the cetner, wouldn't they turn in a circle propelling one another and while doing so, turn the gear?

Answer 1

energy is put into the magnet in the first place. by whatever source.

make it a good day

Answer 2

simply.... no.

as a magnet pushes on another, there is a equal but opposite force pushing on that magnet. therefore one magnet will not push another magnet no matter the friction or lack there of without an outside force. if this contraption you describe had an imput force to get it going, it would only generate in a perfect system it amount of energy you put into it. this is because the magnets are not just pushing in one direction. they are pushing in both thus there force cancels each other out.

Answer 3

external energy still has to be applied when you force movement in one magnet from another. Like your hand holding the other magnet, your hand is putting forth the energy requirement or force to make the other magnet move.

No, you wouldn't get movement in your set up because the energy in the magnets are static. They are not dynamic. Let's say for example that magnetic fields were dynamic on magnets, that is they get stronger and then go weak and then get strong again. Pulsing. That would provide the work you need. Magnets don't do this. It's nature to be at a low energy state. So a magnetic field is static/at the lowest energy state.

You would have to have some sort of means of altering this static field externally through movement. By bucking magnets you are stimulating magnetic fields against one another.

What you are hoping for here is perpetual motion. Or a form of it. Suffice to say, these types of experiments may not work or the designing impact has to be very creative, in order to provide the work/force.

A Machine To Die For (video on Discovery Channel)

Answer 4

Sorry, I can't quite get the geometry of your machine, but no it won't go.

It seems you want a magnet to push another away. At some time it must come back to be pushed away again.

In coming back it will gain potential energy, just the same amount it lost by being pushed away.  When you set it up & put magnets close, you are providing the energy to bring them close.  It is stored as potential energy, in just that push you mention.  When it repels & moves further away, it turns the loss of potential into kinetic & such.  It takes just the same conversion the other way round to bring the magnet back for next time.  So any losses & you lose out eventually. Sorry.

Have you thought of for example, heat a magnet till it looses its magnetic properties, so you can sneak it back close again.  I think you'll find the same. What you gain must be exactly what you loose to get it to come back.

Answer 5

The problem with the setup you described is that the second magnet pushes back on the first magnet, exactly as hard, in the opposite direction.  (Newton's law of equal and opposite reaction.)  So, if you had a bunch of magnets in a ring, there would be exactly as much force pushing clockwise as there was counter-clockwise, and nothing would move.

Just because something is creating a force doesn't mean that is creating any energy.  For example, a book sitting on the table is creating a downward force on the table (and the table makes an upward force on the book), but there's no energy being created.

You only get energy when a force does "work" by the physics definition.  In physics, work = force * distance, so your force has to be making something move in order to be doing any work.