Pantograph
المؤلف:
Cundy, H. and Rollett, A
المصدر:
Mathematical Models, 3rd ed. Stradbroke, England: Tarquin Pub
الجزء والصفحة:
...
16-10-2021
1692
Pantograph
A linkage invented in 1630 by Christoph Scheiner for making a scaled copy of a given figure. The linkage is pivoted at 
; hinges are denoted 
. By placing a pencil at 
(or 
), a dilated image is obtained at 
(or 
).
REFERENCES:
Cundy, H. and Rollett, A. Mathematical Models, 3rd ed. Stradbroke, England: Tarquin Pub., pp. 232-233, 1989.
Coxeter, H. S. M. Introduction to Geometry, 2nd ed. New York: Wiley, pp. 69-70, 1969.
Durell, C. V. Modern Geometry: The Straight Line and Circle. London: Macmillan, p. 5, 1928.
Wells, D. The Penguin Dictionary of Curious and Interesting Geometry. London: Penguin, pp. 167-168, 1991.
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