Horologium Oscillatorium
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Horologium Oscillatorium: Sive de Motu Pendulorum ad Horologia Aptato Demonstrationes Geometricae is a book published by Dutch mathematician and physicist Christiaan Huygens in 1673 and his major work
Huygens horologium
Invention of the pendulum clock by Christiaan Huygens, by Georg Sturm (c. 1885)
Huygens's pendulum clock from Horologium Oscillatorium (1673).
Huygens's style from Horologium Oscillatorium, Part II.
Tautochrone curve
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A tautochrone curve or isochrone curve is the curve for which the time taken by an object sliding without friction in uniform gravity to its lowest point is independent of its starting point on the cu
Horologium Oscillatorium
…reaches the bottom in a fixed amount of time, regardless of the point on the path at which it begins to fall. This in effect shows the solution to the tautochrone problem as given by a cycloid curve. In modern notation: ( π / 2 ) √ ( 2 D / g…
Christiaan Huygens, Horologium oscillatorium sive de motu pendulorum, 1673