"War is the father of all things”. This sentence of Heraklit (between 540 and 535 BC) has a lot of truth in general. I am quoting it in connection with World War II (1939-1945) and inventions originating in this period. The best known examples of inventions (or first practical use of such invention) are • Nuclear Fission leading to the construction of the atomic bomb and nuclear reactors, • The Programmable Electronic Computer. Best known is the machine of John von Neumann as Los Alamos: Mathematical Analyser Numerical Integrator and Computer (MANIAC), • Radar to guide the airplanes particularly at night and in bad weather conditions, • Penicillin to fight bacteriological diseases. Some of these inventions relied on original discoveries already made before the war, but during the war they were for the first time used on a large scal
