The creation of energy through the compression of atoms to such a degree they form a different element. This requires very low temperatures.
It's basically the opposite of a nuclear explosion, which fragments atoms, where this fuses them.
2006-09-05 11:17:45
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answer #1
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answered by Roadpizza 4
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All current nuclear power reactors operate via fission. When a nucleus fissions, it splits into several smaller fragments. These fragments, or fission products, are about equal to half the original mass. Two or three neutrons are also emitted. And a lot of energy!
But fusion is much more efficient than this. Fusion is what goes on in the sun where basically hydrogen atoms join together to form helium. Effective energy-producing fusions require that gas from a combination of isotopes of hydrogen - deuterium and tritium - is heated to very high temperatures (100 million degrees centigrade) and confined for at least one second. One way to achieve these conditions is to use magnetic confinement.
Cold fusion would not require such massive temperatures and so would be a very clean and efficient source of energy.
2006-09-05 18:19:59
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answer #2
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answered by Shadow 1
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By definition, Cold fusion is a nuclear fusion reaction that takes place at or near room temperature and normal pressure instead of the millions of degrees required for plasma fusion reactions.
Cold fusion is the popular term used to refer to what is now called "low energy nuclear reactions" (LENR), part of the field of "condensed matter nuclear science" (CMNS). The initial claim of such cold fusion was first reported by Martin Fleischmann and Stanley Pons at the University of Utah in March of 1989. This announcement was front-page news for some time, and generated a strong controversy, but the public debate abated quickly and cold fusion was generally rejected by the mainstream scientific community.[1] However, from 1989 to the present many scientists report experimental observations of excess heat, nuclear transmutations, tritium, and helium. These experiments use a variety of methods.[2][3][4][5][6]
The latest mainstream review of research in LENR occurred in 2004 when the US Department of Energy set up a panel of eighteen scientists. When asked "Is there compelling evidence for power that cannot be attributed to ordinary chemical or solid-state sources", the panelists were evenly split. When asked about low energy nuclear reactions, two thirds of the panel did not feel that there was any conclusive evidence, five found the evidence "somewhat convincing" and one was entirely convinced. The nearly unanimous opinion of the reviewers was that funding agencies should entertain individual, well-designed proposals for experiments in this field. Critics say that the DOE review had too limited a scope and inappropriate review process. [7][8][9]
The popular press sometimes use the term "cold fusion" to describe "globally cold, locally hot" plasma fusion that occurs in table-top apparatus such as pyroelectric fusion.[10] Another form of cold fusion is muon-catalyzed fusion; unfortunately, the muons it uses require too much energy to create and have too short of a half-life to make the process practical for energy generation.
2006-09-05 18:21:12
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answer #3
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answered by mysticideas 6
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By definition, Cold fusion is a nuclear fusion reaction that takes place at or near room temperature and normal pressure instead of the millions of degrees required for plasma fusion reactions.
Or it could be what happens when you try lick permafrost of a metal surface on a cold day & your tongue sticks to it.
2006-09-05 18:24:12
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answer #4
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answered by Anonymous
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its exactly what it says on the tin fusion but at low temperatures. currently fusion only work at very very high temperatures such as the sun. whilst we can obtain such temperatures in an experimental reactor at the moment it requires more energy than it produces. the idea behind cold fusion is that you could do it using temperatures much much lower meaning just as much energy out but a lot less in so that fusion would become a realistic way to generate electricity
2006-09-09 16:30:51
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answer #5
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answered by narglar 2
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Programming language
2006-09-06 02:02:26
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answer #6
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answered by Siu02rk 3
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Here is a web page for it. I've read it in the past and it doesn't produce enough power for anything big.
http://en.wikipedia.org/wiki/Cold_fusion
2006-09-05 18:16:22
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answer #7
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answered by Sean 7
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When your McCain's oven chips stick to your effing [top quality :-)] Birdseye beefburgers (in the freezer)
2006-09-05 18:25:25
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answer #8
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answered by Mark R 2
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Try these two links:
http://en.wikipedia.org/wiki/ColdFusion
http://uk.search.yahoo.com/search?p=coldfusion&sp=1&fr2=sp-top&fr=ks-ques&ei=UTF-8&SpellState=n-751665353_q-JReArwJmLy.6614erkYGMWMAAA%40%40
hope they help find your answer:-)
2006-09-05 18:16:49
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answer #9
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answered by Anonymous
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