isochrone pendulum

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Timeline of classical mechanics — Timeline of classical mechanics:Early history* 260 BC Archimedes mathematically works out the principle of the lever and discovers the principle of buoyancy * 60 AD Hero of Alexandria writes Metrica, Mechanics, and Pneumatics * 1000 1030 Abū… … Wikipedia
Tautochrone curve — 300px|right|thumb|Four points run over a cycloid from different positions, but theyarrive at the bottom at the same time. The blue arrows show the points acceleration. On the top is the time position diagram.A tautochrone or isochrone curve is… … Wikipedia

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