Cooke, Josiah Parsons, 1827-1894 · Boston, Little, Brown and Company · leaf 216
evident that, when thewire is twisted, these particles will be dis-tributed on the helix m n; but in order toassume this position, the distances betweenthe successive molecules must be increased,which will develop the elasticity of tension,ticity is also developed by the fact that the particles… … Fig. 201. Besides, this elas- 192 CHEMICAL PHYSICS. applied at the extremity of a lever equal to the unit of lengthand perpendicular to the wire, will maintain it in a positionwhich corresponds to a certain angle of torsion, is called theforce of torsion. And when the angle of torsion is such that…
Matter · Heat
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