![François Arago François Arago](http://www.thefamouspeople.com/profiles/thumbs/franois-arago-16407-1.jpg)
French physicist and mathematician François Arago discovered rotatory magnetism, named Arago's rotations. He is also remembered for his research on the wave theory of light and for the reforms he introduced as the French minister of war and the navy. The Eiffel Tower has his name inscribed on it.