as Galileo had believed, of unvaried dura-tions, but they varied sensibly with the intensity of the motive power. THE ATTAINMENT OF ISOCHRONISM BY HUYGENS. Huygens rendered his pendulum isochronous; that is, com-pelled it to make its oscillations of equal duration, whatever mightbe the arc… … Fig. 154 backward oscillation. We show this device in Fig. 151. In greatoscillations, and by that we mean oscillations under a greaterimpulse, the pendulum would thus be shortened and the shorteningwould correct the time of the oscillation. However, the applica-tion of an exact cycloidal arc was…
Clocks and watches
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