“When a photon comes down, it interacts with electrons throughout the glass, not just on the surface. The photon and electrons do some kind of dance, the net result of which is the same as if the photon hit only on the surface.”

— Richard Feynman, book QED: The Strange Theory of Light and Matter

Source: QED: The Strange Theory of Light and Matter (1985), p. 17

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Richard Feynman181

American theoretical physicist 1918–1988

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Richard Feynman book QED: The Strange Theory of Light and Matter

rather than with the event
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“When a photon comes down, it interacts with electrons throughout the glass, not just on the surface. The photon and electrons do some kind of dance, the net result of which is the same as if the photon hit only on the surface.”

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Richard Feynman181

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