4. Flying Over the Atlantic in a Silver Bird

To reach America, German scientist Eugen Sanger proposed a Racketenflugzeug – a rocket airplane. Known as Silbervogel, or Silver Bird, the proposed aircraft was to be propelled at 1200 miles per hour off railroad tracks from a rocket powered sled, then fly to a height of 90 miles. There, at the edge of space, the Silbervogel would use a series of roller-coaster-like “skips”, entering and exiting the upper atmosphere en route to the Big Apple.

Upon reaching its destination, the Silbervogel would detonate a bomb packed with radioactive sand, to devastate New York City with a radiation cloud. It sounds cartoonish, straight out of one of those old time comics, but the theory was actually sound, and it just might have worked. Luckily for NYC, the Nazis were defeated before either the space plane or the villainous plan became a reality.



