“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.Quote by Hermann OberthTopics: Quotes about Hermann OberthShare on:FacebookPinterestWhatsApp
I refrained from writing another one, thinking to myself: Never mind, I will prove that...#Hermann Oberth
Our educational system is like an automobile which has strong rear lights, brightly illuminating the...#Automobiles
