A course of experiments in physical measurement (1897)
Whiting, Harold, d. 1895 · Boston, D.C. Heath and Co. · leaf 1139
l to either of the sides, eachbar will balance about an axis which bisects it; hence thetriangle as a whole must balance about such an axis, andthis axis must contain the centre of gravity. Now thethree lines in question can be shown by geometry to inter-sect at a point 0, such that AO ■=%a. Hence… … density 1, is found by multiplying together the distances xand the cross-section x^, and dividing the result by the ratioof the mass (^ a) to the altitude (a). That is, A0= 3? -f- (^ a ^ a) = a; -f- ^ dK Now a pyramid must balance about any one of the fouraxes, AO, BO, 00, or DO, passing through…
Physics
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
