Leonardo Da Vinci was a true Renaissance man who made significant contributions in multiple fields. He studied topics like anatomy and aerodynamics and was a skilled artist known for developing techniques like chiaroscuro. As an inventor, Leonardo conceived of modern machines like helicopters and tanks. He also invented various military weapons and hydraulic machines, making scientific drawings of his ideas. Leonardo was left-handed and wrote backwards in a special shorthand, adding to the mystery surrounding his works like the Mona Lisa.