Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 236
in the bodys place, and may bedetermined thus. Letto and to, be two con- 1§ secutive places of theplanet moving in anellipse of which G Aand 0 B are the semi-transverse and semi-conjugate axes, andhaving the sun, towardswhich the centripetalforce is directed, in the focus 8. Draw to n parallel to… … that of the seconddeduced; 232 NATUEAL PHILOSOPHY. S; draw SN and CDparallel to the tangentm Q, and produce m Gto the curve at G.The tangent Q Qconstruction of makes equal angles,QmS and Q m S,with the hne drawnfrom the place m tothe foci, and because8 N is parallel to thistangent, the triangle…
Mechanics · Acoustics · Optics
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