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This question already has an answer here:

the surface area of a sphere is 4pir^2 and when you increase it the energy disperses by the square. Who was the first person to realize this?

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merged by HDE 226868 Feb 15 '15 at 22:29

This question was merged with Who was first to explain intuitively the inverse square law of gravity? because it is an exact duplicate of that question.

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