write a short note on spin
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Spin is the total angular momentum, or intrinsic angular momentum, of a body. The spins of elementary particles are analogous to the spins of macroscopic bodies. In fact, the spin of a planet is the sum of the spins and the orbital angular momenta of all its elementary particles.Spinning can be performed as an anaerobic exercise, pulling energy from reserves and building up muscular endurance over an extended timeframe. However, there are also aerobic benefits. Spinning classes include both endurance and cardiovascular training.
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