From the TED-Ed YouTube channel:
When Dick Fosbury couldn’t compete against the skilled high jumpers at his college, he tried jumping in a different way — backwards. Fosbury improved his record immediately and continued to amaze the world with his new technique all the way to Olympic gold. Asaf Bar-Yosef explains the physics behind the success of the now dominant Fosbury Flop.
Lesson by Asaf Bar-Yosef, animation by NEIGHBOR.