Essential Guide to the EU – Chapter 5
Plasma Sheaths, Cells, and Current-Free Double Layers

5.1  Plasma Temperature and Potential We have seen that temperature is a measure of the thermal energy of the particles in matter. More specifically, temperature is a measure of the kinetic energy of the particles’ random thermal motion. An electron has only 1/1840th the mass (approximately) of a proton, so…

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Zero Mass Particles

Dec 02, 2011 Gamma-rays are said to be particles with no mass, yet possessed of extreme momentum. According to a recent press release, the Fermi Gamma-ray Space Telescope has detected several unidentified sources of intense gamma-ray emissions that are not seen in any other frequencies. NASA launched the telescope (formerly…

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