For the practice of continuous rotation of pedals on mobile or stationary bicycles, see Spinning (cycling).
For the practice of "spinning" a news story for PR value, see spin (politics).
For the practice of Metal Spinning to form metal - see Metal spinning.
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Photons are spin-one particles, and the hypothetical graviton is a spin-two particle.
Spin was first discovered in the context of the emission spectrum of alkali metals.
Magnetic material may be modelled by a system of spins located at positions in a lattice, where the interaction of neighboring spins contributes to the total energy of the system and the states of the spins change according to some non-deterministic (probabilistic) rule (the dynamics of the system).