Top network posts

• 37 What was Euler's motivation for introducing $i$ for $\sqrt{-1}$?
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• 23 Did ancient/medieval non-European cultures have a concept of energy? If so, what are the similarities and differences to the modern concept?
• 21 What was the vis viva controversy, including its philosophical aspects?
• 20 How to show a representation is irreducible?
• 20 Did physicists around 1900 really believe they were close to "figuring it all out"?
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