Hermann Oberth , German scientist
said about ...
"If there is a small rocket on top of a big one, and if the big one is jettisoned and the small one is ignited, then their speeds are added."
- Hermann Oberth Read all Hermann Oberth quotes, or find out more about Hermann Oberth
"If there is a small rocket on top of a big one, and if the big one is jettisoned and the small one is ignited, then their speeds are added."
- Hermann Oberth
- Hermann Oberth