Construction of Logarithmic Spiral Small 240×320 Medium 480×640 Large 768×1024 Download Tiff Original 1799×2400 | (284.4 KB) Description Illustration showing how a rolling logarithmic spiral can be constructed by taking successive values of theta, starting from oc. The values of r can be calculated and then the curve can be plotted. Keywords construct, construction, log, logarithmic spirals, motion, motions, plane, rolling spirals, rolling surface, rotation, spiral, surfaces, Translation Galleries Spirals Source: Peter Schwamb, S.B. And Allyne L. Merrill, S.B. Elements of Mechanism (New York, NY: John Wiley & Sons, Inc., 1904) Courtesy the private collection of Roy Winkelman
