Thomas Edison

In 1922, Albert Einstein finally proves his General Theory of Relativity and wins the Nobel Prize—but not for his famous theory.

Hedy Lamarr, Hollywood actress, is known for more than her acting—she invented a signal-hopping technology used in Wi-Fi.

Thomas Edison, America’s greatest inventor, was also deaf—a trait that sharpened his focus and fueled his groundbreaking innovations.

Thomas Edison gave us the light bulb, but it wasn't easy. See how multiple failures lead to a revolution that helped light up the world.