14 Years Later, Cold Fusion Still Gets The Cold Shoulder

segment writes "It has been 14 years since two little-known electrochemists announced what sounded like the biggest physics breakthrough since Enrico Fermi produced a nuclear chain reaction on a squash court in Chicago. Using a tabletop setup, Stanley Pons and Martin Fleischmann, of the University of Utah, said they had induced deuterium nuclei to fuse inside metal electrodes, producing measurable quantities of heat. That was the opening bell for one of the craziest periods in science. Cold fusion, if real, promised to solve the world's energy problems forever. Scientists around the world dropped what they were doing to try to replicate the astounding claim." The linked AP story (carried on SFGate.com) is about the Tenth International Conference on Cold Fusion, which took place in the last week of August.

Comments

Cold fusion and muon catalysis

[rjh]

Not true--cold fusion is possible, just not like Pons and Fleischmann described. (Nothing like it, in fact.) The quantum mechanical description of the energy states of a hydrogen atom are identical whether you use electrons or muons; use either, the hydrogen atom doesn't care. (Now, when you ask the very important question "yeah, genius, now how do you create quintillions of muon-replaced hydrogen atoms?", I'll resort to the classic physicist's dodge: "that's an engineering issue; go ask an engineer.")

QMech says that if you've got hydrogens with muon shells instead of electron shells, you'll see spontaneous fusion reactions at very low temperatures. The reasons why are hard to explain without going into a lot of math, but it's quite possible according to the Standard Model.

Of course, there's a world of difference between possible and feasible. But physicists are only concerned with the possible. Feasible is for engineers. :)