This Demonstration gives a model of Kempe's angle multiplicator. The angle is multiplied by . The multiplicator is one of Kempe's tools; the other two are the adder and the translator.
E. D. Demaine and J. O'Rourke, Geometric Folding Algorithms: Linkages, Origami, Polyhedra, New York: Cambridge University Press, 2007 p. 33.
Wolfram Demonstrations Project
Published: August 15 2008