Dean Kamen
As a child, Dean Kamen struggled with dyslexia and a lack of interest in academic subjects. He was more concerned with practical matters, and by the time he left high school his inventions meant he was earning more than his parents. He now has more than 1,000 patents to his name including his most famous creation, the Segway, but he’s less well-known for his incredible tools that help people with severe physical disabilities, from high precision robotic limbs to extraordinary wheelchairs that can climb stairs.