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Questions tagged [cold-fusion]

40 questions
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Why is cold fusion considered bogus?

Cold fusion is being mentioned a lot lately because of some new setup that apparently works. This is an unverified claim. See for…
Sklivvz
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Is there a sound theoretical argument against inner-shell induced nuclear chain reactions?

There is a claim often made about cold fusion, that it is excluded theoretically. The main theoretical argument is that electronic energies are too low to overcome the Coulomb barrier, since d-d fusion only takes place at KeV energies, while…
Ron Maimon
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11
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What are the challenges to achieving cold fusion?

I am an absolute neophyte regarding physics. What are the challenges to achieving cold fusion? I'm not sure this is a duplicate of Why is cold fusion considered bogus?, because that question is talking largely about the validity of some claims of…
Chimera
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Does the "Energy Catalyzer" by Andrea Rossi et al. generate energy by converting Nickel to Copper?

From Wikipedia: The Energy Catalyzer is an apparatus built by [...] Andrea Rossi, [and] Sergio Focardi. The 2009 patent application claims "a method and apparatus for carrying out nickel and hydrogen exothermal reactions," with production of…
InquilineKea
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6
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2 answers

Muon catalysed fusion from cosmic muons

If thousands of muons are coming to earth. Why can't we use them for muon catalysed fusion which was proved legitimate
Sanath Selvakumaran
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Is there any reproducible tested evidence for Ni-H cold fusion?

The main replications of cold fusion, the ones that are beyond reproach, used Pd/d as the system. But commercial developers have often claim to use Ni-H to achieve similar effects. The claims include those of blacklight power some time ago, and now…
Ron Maimon
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1 answer

Is nuclear fusion via underwater vacuum possible?

An under water explosion creates a bubble which quickly collapses on itself. The action takes less that 1/100 of a second for bubbles less than a foot across. This creates a point of extremely focused energy at the middle point where the bubble…
Hoytman
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Atomic mass of Copper-63?

This URL lists the mass of Copper-63 as 62.9295975(6) and this other URL lists the mass as 62.939598. These values differ by almost exactly 0.01 which seems hard to explain by experimental error. Why is it that these values differ in a significant…
Dan Brumleve
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Another cold-fusion reactor scheme :) Is it feasible?

I have this idea rolling in my head for quite a while, but lately I got really interested to know if it's even remotely feasible. I am complete novice to the field of nuclear engineering and cold fusion, and maybe because of my limited knowledge my…
Ivan Ivanov
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What recent positive developments in LENR were identified in this US House report?

In this Low Energy Nuclear Reactions (LENR) briefing document prepared for the US House of Representatives, we can read (page 8): The committee is aware of recent positive developments in developing low-energy nuclear reactions (LENR), which…
kenorb
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Is the E-cat by Andrea Rossi et al. for real?

Does this thing really do what they say? http://www.youtube.com/watch?v=EhvD4KuAEmo If it does, it looks like this will probably be the biggest breakthrough in science ever :)
Alex
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cosmic radiation muons as a source for muon-catalyzed fusion

taking rough numbers from here and here, it seems that with natural cosmic radiation sources, we could sustain $10^6$ muon-catalyzed fusion reactions per square-meter per minute. This would be $14 \times 10^6$ MeV of neutron energy (for D-T…
lurscher
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3
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Widom-Larsen Theory

Does the Widom-Larsen theory pose a credible underpinning for Low Energy Nuclear Reactions, often incorrectly referred to as "Cold Fusion"? http://arxiv.org/abs/cond-mat/0505026
Kanga
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Muon production in particle accelerator

PAMELA is a particle accelerator which have two concentric rings, protons are accelerated in the inside ring. At ISIS muons are produced when a 800 MeV proton beam collides with a graphite target(carbon 12) can the same be done with this device? The…
kumar saurabh raj
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Theorical efficiency of Chirped Pulse Amplification HB11 fusion reaction

I read that scientists finally reproduced a more efficient fusion with a novel approach. They accelerate hydrogen inside a pellet with a LASER. A single H atom produces three $\text{He-4}^+$ nuclei. If employed directly, 3 nuclei means 3 x $1.602…
CoffeDeveloper
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