Drop a basketball with backspin from a great enough height, and something rather interesting happens. In the video below, Veritasium’s Derek Muller explains the Magnus effect, and why the phenomenon can cause a ball with even a little spin to swerve so dramatically from its expected path.
The Flettner Airplane made its debut in the 1930s. Instead of wings, it flies using rotating cylinders that stick out from either side of its body. We'll tell you about its inventor, and show you how it flies.