Snell or Snellius, Willebrord (vĭlˈəbrôrt snĕl, snĕlēəs) [key], 1591–1626, Dutch mathematician. He is generally credited with the discovery (1621) of the law of the refraction of light. In 1613 he became professor of mathematics at the Univ. of Leiden. His two chief works are Eratosthenes Batavus (1617) and Cyclometricus (1621).
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
See more Encyclopedia articles on: Mathematics: Biographies