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Would This Work?


OrbitalBuzzsaw

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5 minutes ago, Darnok said:

If you want to lose all stored energy, yes, but we don't want to lose it, we want to get it back :)

Then if you make a current flow through a wire, then quickly cut off and connect its ends into a ring, you will get a wire with electricity inside.

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On 2017-01-24 at 2:17 PM, Darnok said:

Magnetism itself is form of energy.

There should be a law under which you have to define the word "energy" before you use it in a discussion. This could also apply to "Quantum", "Theory", "Entropy"... It would help to localize confusion. :)

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14 hours ago, Darnok said:

You are wrong... take for example neodymium, this is your spring. If you put energy in it you add magnetic capabilities to this piece of metal. Now you have squeezed spring ready to make work (release energy).

Key thing is to develop mechanism able to drain energy stored in neodymium and of course you can not drain more energy than you stored :wink:

 

Im not quite sure what you are saying, but:

Here's a thing. Say you have an un-magnetised piece of ferro-magnetic metal and you "put energy in" as you say, to magnetise it. It does indeed require energy to do this. If applied by magnetic field, physically it would manifest as resistance, it would take effort to move the magnetic field through the sample.

This in effect gives the newly magnetised piece of metal its own magnetic field. The energy you have put in, what it is used for, is removing entropy. The highly disordered states of the micro-magnetic fields that existed previously, have been forcibly re-ordered to all point in the same direction. This is an endothermic process, it requires energy, you have not "charged up" the metal with power. The piece of metal *is* now in a higher energy-state, than it was previously, but most of the energy you used to put it into this state is used to overcome a threshold, an "energy barrier", and most of the energy is immediately lost as heat in this process - *not* "stored" in the metal. The metal will heat up when you do this, of course usually the heat radiates away and the metal cools, this energy now being lost. The metal *is* now in a higher energy state, but only fractionally, like a crystal is, it "likes" being in this state, or it would spontaneously disorder itself and go back to being non-magnetised. [Which in many weakly magnetised materials, it gradually does, and yes, this does release a tiny amount of energy as heat.]

If I could draw a graph, I would draw a double hump, where one trough is slightly higher than the next, with a "hill" between them.

And now you have an uncompressed spring.

**edit**

PS: The heat that leaks out of the metal, this ends up increasing the entropy of the environment, thus upholding the 2nd law of thermodynamics.

Edited by p1t1o
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