Toby loved to invent things as a boy. When he was 5, he got a construction set, and immediately threw away the instructions. His first invention was a vegetable peeler. As he got older, he also built a bicycle, a go-kart, and a motorbike.
While swimming in a polluted river, when he was 21, Toby was infected by a virus. The virus damaged his brain, and he lost the ability to speak, walk, or use his right arm.
Toby needed a way to communicate with other people. No one made a device that could help, so Toby decided to make it himself. He calls his talking typewriter a Lightwriter.
Until Toby finished the first Lightwriter, many people thought he wasn't serious. But once they saw his new invention, other people began to want one too! Today his company sells thousands of them every year!
Sara Josephine Baker was born in 1873. When Sara was a little girl, she was adventurous and would sneak out of the house when the circus came to town. Sara decided to become a doctor at the age of 16, after her father died from typhoid.
Murali Krishna loved to read as a boy. His favorite topic was science fiction, especially stories about space travel and robotic machines.
George Washington Carver was born a slave. As a boy, he was often sick, and liked to draw and paint pictures of nature. He loved plants and animals.
Stephanie Kwolek liked to design clothes as a girl. It wasn't until high school that she became interested in science.
