#history

Can the basic concepts of the general theory of relativity be illustrated geometrically with almost no math? To answer this question, let’s reconsider Newton’s well-known problem of the falling apple.

In the 1920s, the founding father of rocketry and astronautics, Hermann Oberth, struggled hard to realize his visionary ideas. Having his dissertation on rocket science rejected, Oberth convinced a film studio to fund his plans to build a real rocket as the advisor for a science fiction film in an unorthodox private public partnership.