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I almost voted to close your question as a duplicate of How do you rotate spin of an electron?. This would be controversial because the question looks related at a first glance, but ACuriousMind's answer to that question also (indirectly) answers this question. When we talk about rotating an electron, or any fermion, we are not talking about a physical ...

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Nuclear rocket motors work by heating a gas and allowing it to expand out of the exhaust. To get the most thrust from your gas you want the momentum of the gas molecules to be as high as possible, because the force is equal to the rate of change of momentum of the gas molecules. Suppose the nuclear reactor heats the gas to a temperature $T$, then the ...

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As rockets have finite fuel capacity and important parameter is how much rocket velocity can be achieved in a given situation per unit of fuel mass consumed. The higher the exhaust velocity the more effectively the fuel mass is utilised. Issues such as energy required are also important but generally exhaust velocity or "specific impulse" is amongst the most ...

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I would say the maths and equations are pretty much identical except in H NMR you would use the gyromagnetic ratio for a proton, while in EPR you use the data for an electron. Both are spin 1/2 systems. In terms of medical imaging it is easier to pick H2O via pulse NMR (rather than continuous field i.e what chemists do for molecules etc) than observe free ...

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There are a fairly large number of replications of both the Nickel-Hydrogen variant and the original Fleischmann-Pons Palladium-Deuterium electrolytic cell variant. See this for a recent survey: https://www.academia.edu/17964553/Condensed_Matter_Nuclear_Science_October_2015 The results are becoming more mainstreamed (Wired, Forbes, Huffington Post), and thus ...

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From Wikipedia: Paraffin wax is a white or colorless soft solid derivable from petroleum, coal or oil shale, that consists of a mixture of hydrocarbon molecules containing between twenty and forty carbon atoms. As stated above, paraffin wax is a hydrocarbon that is a soft solid at room temperature. When it melts, it becomes the combustible fuel for the ...

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Pure water is not flammable. It can be added to other materials (e.g. cesium, sodium, etc.) to produce flame, however. In the comments you seem to reject that option because it is not "pure water" but water reacting with something. I'd like to point out that all flammability results from reactions. Pure oxygen is not flammable either, for example, it has to ...

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What is the possibility water being the fuel to fire. "Pure water" Especially your emphatic addition of "Pure water" allows to answer this question in the narrow sense of the question as: 'No'. In order for a substance to be the fuel to a fire it has to contain something that is reducible, i.e. capable of lowering its Oxidation Number. Such a ...

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Yes, if a water fire extinguisher is used inappropriately, on (say) something like a Magnesium fire. The Magnesium extracts the Oxygen from the water and the Hydrogen then burns. This is in addition to what is effectively a steam explosion from the heat alone spreading the burning metal. Such a fire is a danger when machining Magnesium or similar metals and ...

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To ionize an atom energy has to be supplied to free the electron. This energy is of order 10 ev per scatter. The atoms in a gas have an average kinetic energy which defines the temperature of the gas and the distribution is given by statistical mechanics. Here is the ionization energy needed for a number of gases: Compare to : The thermal energy ...

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The simplest method is to follow Archemides and his principle: Archimedes' principle aids in the experimental determination of density by providing a convenient and accurate method for determining the volume of an irregularly shaped object, like a rock. We are in a fortunate position to have the densities of all elements with a click on the internet ...

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One way to figure out what something is made of figure out its density by dividing the object's mass and volume;then look at a density chart!

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This will have some basic answers to your questions(which you have also sort of answered yourself; How is perceiving blue to be darker than yellow in Photoshop ´because of biological principles within the eye´ any different from perceiving blue to be darker than yellow in an old photo? Unless there is a way to ´see´ colors without using our eyes (or using ...

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