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Pythagoras vs. Einstein Variant:Hoodie (Fair Geekwear) surprise guests and lots ofWhen scientists argue, it should really only be about facts. However, Pythagoras and Einstein may simply have got off on the wrong foot here. Otherwise they would realize that their fight over c on the "Pythagoras vs. Einstein" T shirt is completely pointless. Although it appears in both Pythagoras' theorem and the theory of relativity, it has different meanings: Hypotenuse in one equation, speed of light in the other. Who tells them?