<!doctype html public «-//w3c//dtd html 4.0 transitional//en»> http-equiv=content-type> For all being interested in astronautics, this translation of Hermann Oberth’s classic work is a truly historic event. Readers will be impressed with this extraordinary pioneer and his incredible achievement. In a relatively short work of 1923, Hermann Oberth laid down the mathematical laws governing rocketry and spaceflight, and he offered practical design considerations based on those laws.
