Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 170
it could be divided up into segments corresponding tothose lines, they would have no inclination to leave theirplaces, showing a perfect absence of strain across thoselines. Suppose now the points representing the centresof gravity of these segments were supported on leversand triangles, so as to… … Fig. 74.—Division of the speculum into equal areas. is evident that there can be no strain between the com-ponents of these couples. Again, let these points, a, becoupled together by the system shown at B, Fig. 75,and their centres of gravity, h, coupled as at c, and it isevident that the whole…
Astronomy · Telescopes
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