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The photon is the quantum of the electromagnetic four-potential, and therefore the massless bosonic particle associated with the electromagnetic force, commonly also called the "particle of light". Use this tag for questions about the quantum-mechanical understanding of light and/or electromagnetic interactions.

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How many photons are emitted by a lightning strike?

As the title suggests, I'm curious to know, approximately how many photons are emitted in a single lightning strike? …
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