Quote of the day
It is one of my sources of happiness never to desire a knowledge of other people's business.
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.








