Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 286
common point ofintersection and the horizontal line, will measure thetensions of the sides of the polygon. The point jS is point of tensions,called the point of tensions. § 195.—The sides of the polygon may be very shortand only subjected to the action of their own weight, The catenary;which would… … ployed to giveform to arches anddomes. The useof the catenary forsuch purposes maybe illustrated byconceiving a seriesof equal spherical balls held together by mutual attrac- 2b2 NATURAL PHILOSOPHY. illustration by astring of balls; Fig. 165. sides of thepolygon, thechords of theballs;
Mechanics · Acoustics · Optics
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