Science and engineering depend on the quantification of variables, by measurement, calculation, or both. When we have a quantity that expresses some measure of the variable of interest, it is quite useless without the correct units. What is the acceleration on the earth due to gravity? People will often quickly answer “32” or “9.8”, but that is a meaningless answer without the appropriate units (ft/s2, m/s2).
KeywordsQuantum Number Principal Quantum Number Decay Data Magnetic Quantum Number ICRP Publication
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- 1.Taken from The Particle Adventure (http://particleadventure.org/particleadventure/ index.html, The Particle Data Group, 2002).
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