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DandiDon

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DandiDon

Re: N_D_K_Hey post# 46231

Tuesday, 09/04/2018 12:15:11 AM

Tuesday, September 04, 2018 12:15:11 AM

Post# of 52915
FYI The intensity or brightness of light as a function of the distance from the light source follows an inverse square relationship. ... Notice that as the distance increases, the light must spread out over a larger surface and the surface brightness decreases in accordance with a "one over r squared" relationship.
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