what is cold fusion?

Question

what is cold fusion?

Answer 1

Cold fusion is the name for effects supposed to be nuclear reactions occurring near room temperature and pressure using relatively simple and low-energy-input devices. When two light nuclei are forced to fuse, they form a heavier nucleus and release a large amount of energy.



Cold fusion is the popular term used to refer to what is properly called "low energy nuclear reactions" (LENR), part of the field of "condensed matter nuclear science" (CMNS). Cold fusion was brought into popular consciousness by the controversy surrounding the Fleischmann-Pons experiment in March 1989. For the next 17 years, efforts to replicate the effect had mixed success and panels organized by the U.S. Department of Energy (DoE), the first in 1989 and the second in 2004, did not find the evidence convincing enough to justify a federally-funded program. They recommended further research. More claims of experimental success were reported, primarily in non-mainstream publications.



In 2006, Mosier-Boss and Szpak, researchers in the U.S. Navy's Space and Naval Warfare Systems Center San Diego, developed a new experimental technique, a key feature of which is the electroplating of probes to a set ratio of palladium and deuterium. These experiments have produced evidence of high-energy nuclear reactions concentrated near the probe surface.[2] Based on this work, two other teams have reported similar findings at the American Physical Society meeting of March 2007 (sessions A31 and B31) although interpretations vary.

Answer 2

Cold fusion is a myth.



In fact it is a myth that has done a lot of damage credibility of the hot fusion community.



Typically what happens is researchers take two different metals and plate them with deuterium and the stack the plates in layers. They then run a current through the layers and measure the heat produced. They then call this heat a bi-product of "fusion" and claim that they have created cold fusion.



The problem is that there is a well know physical effect that when you join two dissimilar metals a run a current through them heat is produced. This is the Peltier effect. And despite numerous experiments, no one has been able to show that the heat created in these reactions is anything other that the heat created by the Peltier effect.



If you don't believe me, then look at the 2nd article cited in the wiki article. This is the article by the people at the Space and Navel Warfare Laboratory that claims to undisturbedly prove that cold fusion is what is being measured. But if this is the case why did these people working in an American lab publish their results in a German Journal of Biomedical and Life Sciences??? Check it out, click like given in wiki.

Answer 3

Two hydrogen atoms are usually forced together with extreme pressure and temperature.at the center of a star resulting in helium and a large production of energy.

Cold fusion would be an attempt to fuse the two at room temperature,with the same energy output.

The trick is to force the to two hydrogen ions,against the strong nuclear force,to within half the diameter of each other where fusion will occur.

Maybe one day it will be possible but not to-day.