Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 63
the pendulum traces out a cone. In this casethe motions in rectangular directions differ in phase by a quarter period. We may make the difference in phase anything we like by suitablychoosing the point in the path of the vibrating pendulum at which therectangular blow is delivered.If the amplitudes… … every other case an ellipse. Thismay be easily verified by trialeither geometrically, or experi-mentally by the pendulum asabove. The geometrical con-struction in this case, as in othersin which the periodic times aredifferent, is best effected by theuse of two circles of reference.We proceed to…
Physics
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