I believe perpetual motion has been achieved. My wife defies the laws of physics in several ways, one being her mouth that never stops moving. I can assure you that the energy output is greater then the energy input.
Hope that helps
2007-07-08 12:30:07
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answer #1
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answered by trouble_906 4
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The second law of thermodynamics forbids perpetual motion. As the entropy of the universe must increase, which leads to any energy exchange to be lossy. So no perpetual motion has never been achieved. If you manage to do it though you could make yourself a LARGE pot of money and change the entire basis of Physics (pretty much). Some people have claimed to make perpetual motion machines, but they are always simply an illusion...
2007-07-08 12:28:21
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answer #2
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answered by fearsome_gibbon 3
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Don't think that 'perpetual motion' is the problem, just the extraction of useful work from such a system. How about this? a room temp superconductor could levitate a rotating magnet due to the meissner effect. Would that be static perpetual motion? And what would happen when you tried to use the rate of change of flux to create an EMF and how would this affect the zero resistance current flowing in the superconductor?? lol!
2007-07-08 12:54:40
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answer #3
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answered by RTF 3
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Not yet, but we do have some long-term movers. The Earth has been moving around the sun for more than four billion years; and during most of those, the tides have risen and fallen.
We haven't yet observed any phenomena -- other than the accelerating expansion of the universe itself -- which would even suggest that perpetual motion is possible.
2007-07-08 14:06:40
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answer #4
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answered by Anonymous
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lots of wrong answers.
Yes it can and hs been achieved. Achieving it in a useable state is the key, ie not super cooled etc..
Gravity and friction is what acts against motion and if all the forces it is one of the weakest, when compared to the various types of molecular bonding, thats what holds us together, if gravity was stonger you would be a gooy mess on the floor.
If the use of magnets and conductors can be used to over come gravity, floating motors would be friction free. (like some modern trains in Japan). This is key and a very simplified version of where we are.
What about harnessing anti-matter (dark matter) or the trillions of nano particles that pass right through your body and the whole planet ever second, without even colliding with another particle.
2007-07-09 10:51:15
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answer #5
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answered by dsclimb1 5
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Actually, Perpetual Motion has been achieved many times.
The problem is putting it to use.
There are toys that always turn, and there is a Pendulum in my home town of Portland Oregon that always swings.
Except for when the President visits. The Secret Service made them stop it while he was there.
2007-07-08 12:32:23
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answer #6
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answered by James F 4
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That company claims to have build a small more using some kind of magnets, but when they were going to demo it, they could not get it to work - said the camera lights were too hot. Does not seem like a very good version of perpetual motion.
And if it requires magnets, what is the cost to create one (energy input) versus the energy you can get out of it?
2007-07-08 12:25:31
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answer #7
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answered by Anonymous
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In one sense, perpetual motion has been achieved. You can start a current in a superconductor and it will flow forever. However, you cannot extract energy from it without reducing the current eventually to zero.
2007-07-08 12:39:13
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answer #8
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answered by Anonymous
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Yes, perpetual motion has been achieved. It is called: talking on a cell phone.
2007-07-08 13:34:03
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answer #9
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answered by Anonymous
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If you have a theory that would be viable, then I suggest that you need to contact the Patent Office, and lodge a Patent.
I wouldn't discuss the matter on here.
I know that there is a design that has been put forward to make electricity using wave power.
2007-07-08 12:35:18
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answer #10
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answered by ? 5
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