Oberth, Hermann Julius definition of Oberth, Hermann Julius in the Free Online Encyclopedia.

Oberth, Hermann Julius, 1894–1989, Austro-German astronautical pioneer, b. Hermannstadt, Austria-Hungary (now Sibiu, Romania). Beginning his studies in astronautics before World War I, he first proposed a liquid-propellant rocket rocket, any vehicle propelled by ejection of the gases produced by combustion of self-contained propellants. Rockets are used in fireworks, as military weapons, and in scientific applications such as space exploration.
..... Click the link for more information. in 1917 and in 1923 published his unsuccessful Ph.D. dissertation, The Rocket into Interplanetary Space, which discussed many aspects of rocket travel. He expanded this small pamphlet into a larger work, The Road to Space Travel (1929), which won wide recognition. During World War II he worked with Wernher von Braun von Braun, Wernher (vôn broun), 1912–77, German-American rocket expert, b. Germany, grad. Berlin Technological Institute (B.S.
..... Click the link for more information. in the German rocket program at Peenemünde; he again worked with von Braun in the United States after the war.