A comparison of these two equations show that O' must coincide with S. Hence the center of suspension and the center of oscillation are interchangeable and the distance between them is the length of the equivalent simple pendulum. This is the principle...
Revolution in Measurement: Western European Weights and Measures Since the ... - Side 115
av Ronald Edward Zupko - 1990 - 548 sider
Uten tilgangsbegrensning -