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Mathematical Treasures - Desargues' Sundials

Frank J. Swetz and Victor J. Katz

Desargues Sundials

Girard Desargues (1591—1650) was a French mathematician and engineer best known for his contributions to projective geometry. He published materials on many technical and engineering topics. In 1640, he published a tract on dialing-constructing sun dials. This is the title page of the 1659 English language translation of this work.

Frank J. Swetz and Victor J. Katz, "Mathematical Treasures - Desargues' Sundials," Convergence (January 2011)

Mathematical Treasures from the Smith and Plimpton Collections at Columbia University