Young, Charles A. (Charles Augustus), 1834-1908, Young, Anne Sewell, b. 1871., ed · Boston, New York [etc.] Ginn and Company · leaf 78
ughtnear the smaller ones, as shown in the figure, a deflection willbe produced by their attraction, and the small balls will movefrom a and b to af and b. By shifting the large balls to theother side at A and B (which can be done hj turning theframe upon which these balls are supported) we get an… … It is not necessary, nor even best,to wait for the balls to come to rest.When vibrating slightly we note theextremities of their swing. The mid-dle point of the swing gives the placeof rest, while the time occupied bythe swing is the period of vibration,which we need in determining thecoefficient…
Astronomy · Constellations
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