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How is light made?

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Light originates as single photons, or particle/waves having zero mass, no electric charge, and an indefinite lifetime. Photons are emitted by electrons as they lose orbital energy around their atom. The expendable orbital energy is transferred to the electron either when it is bumped by an atom or when it is struck by another photon. Before being excited to a highter electron shell, the electron is in the lowest possible shell, or ground state.

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