Editing 687: Dimensional Analysis
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[https://www.wolframalpha.com/input/?i=%28Planck+Energy%29%2F%28Pressure+at+the+Earth%27s+core%29*%282010+Prius+combined+EPA+Gas+Mileage%29%2F%2833.1+km%29 Wolfram|Alpha can find most of the statistics and do the calculations.] | [https://www.wolframalpha.com/input/?i=%28Planck+Energy%29%2F%28Pressure+at+the+Earth%27s+core%29*%282010+Prius+combined+EPA+Gas+Mileage%29%2F%2833.1+km%29 Wolfram|Alpha can find most of the statistics and do the calculations.] | ||
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+ | === Trivia === | ||
+ | This definition of pi uses, among other values, the width of the English channel. Incidentally, an approximation of pi can be found using natural water bodies: The sinuosity of a freely meandering river approaches pi. The {{w|sinuosity}} is the ratio of the true length (as the water flows) and the straight line, from river source to river delta.[https://www.theguardian.com/science/alexs-adventures-in-numberland/2015/mar/14/pi-day-2015-pi-rivers-truth-grime] | ||
==Transcript== | ==Transcript== |