What was Edison's questionable role in the development of the electric chair? Which household utensil came from the mind of a prisoner? How was the Maclaren baby buggy inspired by a fighter plane? Behind many million-dollar inventions are priceless stories of inspiration, controversy, triumph, and tragedy. Explore inventions large and small, lifesaving and life-taking, scary and playful, and meet the men and women who dedicated, and often risked, their lives to follow their vision and ultimately change the world.