Cold Fusion Scientist Exonerated 171
Icarus1919 writes "New Scientist reports that the scientist who discovered a possible cold fusion reaction by bombarding a solvent with neutrons and sonic waves has recently been exonerated of accusations of scientific misconduct following the verification of his results by another scientist."
Re:Odd. (Score:2, Interesting)
Re:Odd. (Score:5, Interesting)
Re:Odd. (Score:3, Interesting)
Re:I guess this is bad news for corn farmers? (Score:3, Interesting)
Re:Doesn't mean he's *right* (Score:5, Interesting)
A New York Times article [nytimes.com] with more detail suggests they didn't even clear him of that, just of passing off his own work as independent replication. It sounds like no one's interests have been especially well-served here.
Re:Doesn't mean he's *right* (Score:5, Interesting)
You don't die from a few hundret neutrons
There are really only two ways of interpreting the electrochemistry experiments at this point: (1) they didn't produce fusion; or (2) there are huge, fundamental mistakes in our understanding of the hydrogen atom (e.g., there's another state whose energy is lower than the normal ground state's).
Regarding (2): I don't think our understanding is fundamentally wrong. However I believe there are options no one really payed attention to. After all our first ideas about fusion comes from watching the sun. Our first attempt on fusion likely was the H-Bomb. Both are pretty hot fusion processes. They both are explainable with fusion reaction formulas, so we gain confidence that our formulas and our understanding of fusion and fission processes are viable. OTOH in such a fusion experiment we could imagine that 3 or 4 protons fuse etc.
Well, 40 years ago "high temperature" super conduction was physically impossible. If a scientist had claimed super conduction does exist on high temperatures as well, his colleagues had declared him mad. I think that fusion processes in analogous ways like super conduction might be possible, or in other words that the underlying principles might be similar.
angel'o'sphere
Re:So... (Score:4, Interesting)
Most of what Rider's papers discuss deals with the nonequilibrium aspect. That is, some fusion systems, fusion is attempted to be conducted at a lower energy by having a non-Maxwellian energy distribution in the plasma. That is, a Maxwellian plasma has most of the particles at a lower energy than the temperature would suggest, with the few high temperature outliers causing most of the fusion reactions. If you can only spend your energy accelerating particles to energies that stand a significant chance of fusing (without wasting it on bulk material that will still be too low energy), you can get a much higher rate of fusion. Rider goes on to show that, barring heavy use of selective removal of low energy particles for reacceleration, non-Maxwellian distributions of ion energies will rapidly decay to a Maxwellian equilibrium distribution. He also discusses energy loss mechanisms, and how formidable they are. In a later paper, he discusses more specific fusion systems and the problems inherent in them, and then proposes several possible systems that use resonant excitation or filtering of low energy ions for reacceleration to bypass the limitations his paper sets on fusion systems.
Anyways, back to sonofusion. The idea with sonofusion is not, to the best of my understanding, to get a non-equilibrium energy distribution. Rather, it is to get extremely high temperatures in a very small region of space, and then have A) the resultant neutrons seed cavities in the opposite nodes, and B) have energy from the reaction feed back into the wave, helping compress the opposite nodes at the same time that the input accoustic waves normally would. In short, Taleyarkan hopes to achieve a kind of sonofusion chain reaction in which accoustic waves self-maintain a strong degree of anisotropy due to the fusion reactions that they cause. Even if a chain reaction is shown to be impossible, the hope is to at least make a good neutron source.
At least, this is my understanding of what I've read; admittedly, it's been a while.
Comment removed (Score:1, Interesting)
Re:I guess this is bad news for corn farmers? (Score:3, Interesting)
Re:So... (Score:1, Interesting)
No, Rider quite clearly discusses IEC systems where the magnetic field is zero, and cites three papers. (For fun, calculate the Debye length for an ion-only plasma.)