Quote of the day
At each increase of knowledge, as well as on the contrivance of every new tool, human labour becomes abridged.
Nikolai Ivanovich Lobachevsky
Born: December 1, 1792
Died: February 24, 1856 (aged 63)
Bio: Nikolai Ivanovich Lobachevsky was a Russian mathematician and geometer, known primarily for his work on hyperbolic geometry, otherwise known as Lobachevskian geometry.