All of our ideas in physics require a certain amount of common sense in their application; they are not purely mathematical or abstract ideas. We have to understand what we mean when we say that the phenomena are the same when we move the apparatus to a new position. We mean that we move everything that we believe is relevant; if the phenomenon is not the same, we suggest that something relevant has not been moved, and we proceed to look for it. | |
— Richard P. Feynman, Robert B. Leighton, and Matthew Sands | |
Quoted from: “The Feynman Lectures On Physics“ | |
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When Phenomena Are Different
January 17, 2011 by kmabarrett
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