Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 164
case of the cycloid the base circle is of infinite radius.If the radius of the base circle is finite, and the rolling circle isoutside of the base circle, the curve generated is an epicycloid.If the rolling circle is within the base, the curve is an hypo-cycloid. Various other trochoids result from… … Fig. 144 the circle 1-12 be a plan of the cylinder from which the threadis to be unwound, starting at 1. AMien one complete turn hasbeen made, the thread will be tangent to the circle at 1 and theend of the string will be at a distance from 1 equal to the cir-cumference of the circle, as shown by…
Geometry, Descriptive
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