* Astronomy

The Z3 was an electromechanical computer designed by Konrad Zuse. It was the world's first working programmable, fully automatic computing machine.
On 12 May 1941 the Z3 was presented to an audience of scientists including the professors Alfred Teichmann and C. Schmieden of the Deutsche Versuchsanstalt für Luftfahrt ("German Laboratory for Aviation"), in Berlin.
Read more