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What is History and Mechanics of Spirograph about?

Spirograph is a geometric drawing toy that produces mathematical curves known as hypotrochoids and epitrochoids. The toy version was developed in the 1960s by British engineer Denys Fisher and became popular in the US in the late 1960s. It consists of plastic rings and wheels with internal gears that allow different shapes to be drawn when a pen is placed in a wheel and rotated around a ring. The mathematical basis of the shapes drawn involves the relative motion of two circles of different sizes rolling wi

Author

2uarif

Language

EN