Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 219
2.—If we now sup-pose the body, instead of Fig. 124. being connected with thepoint 0 by means of a rigidbar, to move about the samepoint in a circular groove,the effects, as regards thecentrifugal force, will ob-viously be the same, sincethe body will be constrained,by the resistance of the groove,… … MECHANICS OF SOLIDS. 215 V2if. R But if the plane of the groove be vertical, the weightof the body will also exert its influence; for the weightbeing resolved into two components, one tangent and theother normal to the curve at the place of the body, thelatter will sometimes act with, and sometimes…
Mechanics · Acoustics · Optics
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-198-119.webp)
