Quote of the day
Friendships in childhood are usually a matter of chance, whereas in adolescence they are most often a matter of choice.
Konstantin Tsiolkovsky

Born: September 5, 1857
Died: September 19, 1935 (aged 78)
Bio: Konstantin Eduardovich Tsiolkovsky was a Russian and Soviet rocket scientist and pioneer of the astronautic theory, of Polish, Russian, and Tatar descent. Along with his followers, the German Hermann Oberth and the American Robert H.






