Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I ...

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

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Years ago, no math education was complete without understanding how to compute a square root. Today, you are probably just ...

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The 4% rule is designed to make your savings last for 30 years. It has you withdrawing 4% of your savings plan balance your ...