Not yet, but don't count it out because of physics' laws. Remember, before they knew about vortexes, engineering laws pretty much determined that bumble bees couldn't fly (of course, the bumble bees didn't know this, and they just flew anyways)
2006-08-21 17:21:48
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answer #1
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answered by LeAnne 7
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in the movies, but they only last 2-4 hours. not even the earth will meet this description.
1. Lasting for eternity. 2. Continuing or lasting for an indefinitely long time. 3. Instituted to be in effect or have tenure for an unlimited duration:
but will make you a few dollars if have an idea!
thanks for the thought though
2006-08-22 00:19:22
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answer #2
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answered by sllyjo 5
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No, there is none. Otherwise, there would be no gasoline engine. All engines have a fuel source. Be it gasoline, diesel, geothermal, nuclear reactor, wind, solar, etc., etc.... All of them eventually are consumed, and even energy coming from the wind and sun is not always available 24/7 and 365 a year.
2006-08-22 00:20:36
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answer #3
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answered by MenudoPie 3
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No, but at least one mechanical device that I read about was said to have run for over 100 years without fuel or maintenance, and might still be running had it not been partially dismantled in order to be moved to a museum. (It was powered by changes in temperature, and the resulting expansion and contraction of columns of mercury.)
2006-08-22 00:17:17
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answer #4
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answered by yahoohoo 6
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I saw the Mythbusters on discovery channel try to prove several different theories about this. They had the schematics and tried to build them. They were unsuccessful. Although, that doesn't mean that none exists. I'm sure, if it did, the oil companies would be trying to keep a lid on it as long as possible. Until they can find a way to make money on it themselves.
2006-08-22 00:16:45
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answer #5
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answered by 1yugpj 2
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Hi. Most people do not consider the extremely small as objects, but an electron moving in an electron cloud will move indefinitely without energy input.
2006-08-22 00:16:19
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answer #6
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answered by Cirric 7
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I believe that perpetual motion has not yet been achieved. If it had been, we wouldn't be in this developing energy crisis.
2006-08-22 00:18:20
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answer #7
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answered by huntergator 1
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No. Not unless someone figures out how to get around the laws of thermodynamics.
And, even if it did, you couldn't extract energy from it.
Doug
2006-08-22 00:28:01
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answer #8
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answered by doug_donaghue 7
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The laws of physics say that such a machine is impossible to create.
2006-08-22 00:15:46
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answer #9
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answered by Anonymous
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No such engine exists.
2006-08-22 00:14:24
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answer #10
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answered by Awesome Bill 7
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