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The difference is that angular momentum flux $\psi$ depends on the direction and scalar momentum flux does not, because is integrated over all directions: $\phi = \int_{4\pi} \psi d\Omega$. For the rest, they exhibit the same dependence on Energy. So $\psi$ gives the amount of neutrons that at a certain position $\bf r$ and at energy $E$ are moving in the ...


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Please note, that this test was conducted by exactly the same group that did the previous test, lead by Guiseppe Levi, who is closely connected to Andrea Rossi. Also, you can read from the report, that Rossi himself was present in the test pulling the strings. Hardly independent testing, is it? The above facts alone are enough to make the report somewhat ...


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Their latest press release says it has been confirmed by 6 independent observers. However, so far I cannot find who these are nor the status of their scientific credentials. If Rossi really has something working I do not see why he does not simply get a whole slew of patents and throw the whole technology wide open for inspection by qualified teams of ...


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As you probably know, $^{59}$Co is the only stable isotope of Cobalt. Neutron irradiation results in formation of $^{60}$Co (plus an emitted gamma), which has a half life of 5.2 years. The decay is through beta decay, resulting in formation of stable $^{60}$Ni. For nuclear physics cross section, a very useful website is the National Nuclear Data Center, ...


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Here are some "order-of-magnitude" arguments: Quoting https://en.wikipedia.org/wiki/Decay_heat#Spent_fuel : After one year, typical spent nuclear fuel generates about 10 kW of decay heat per tonne, decreasing to about 1 kW/t after ten years Now since this is heat, you can't convert it to electricity with 100% efficiency, the maximum possible ...


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There are many reasons why they are not used, the reasons or my explanations may not or may not be good/useful. in no particular order Alpha voltaic's are prob the best, with Pu238 or Am241 being likely candidates, though, Cm-243,244 are also options. They are superior to batteries in almost every way, but cost limits them to micro power devices. uses are ...



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