A course of experiments in physical measurement (1897)
Whiting, Harold, d. 1895 · Boston, D.C. Heath and Co. · leaf 1140
ith density 0 along the line ^ C and density a;~at adistance x from A Cmeasured either hori-zontally or vertically;then we have seen thatthe centre of gravityof a horizontal or ver-tical section of the tri-angle is (if n :=. 1, 2,or 3) at a point suchthat the distance be-tween it and AB orBO is to… … The centre of gravity of the triangle is therefore at the in-tersection G of AE and CD. Drawing BG and, parallelto it, EH and DF, we have by similar triangles — GH-.HC:: GF:FA:: 1 : n. Now by construction the triangles HGE and DGF are equal;hence GE = GF=FA~ n, a.nd DG— GH= HO -^ n. n06 APPENDIX…
Physics
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