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Lonnie Johnson is an inventor from Atlanta in the USA. He helped to develop the stealth bomber and the Galileo space mission to Jupiter. But the invention he is best known for is the Super Soaker water gun. It's one of the best-selling toys of all time, and made millions of dollars for Lonnie.

The Polish performance artist Cecylia Malik uses art to highlight environmental issues in the country's public spaces, rivers and parks. Her first project was called 365 trees, and involved climbing a different tree every day for a year.

Jack Sutherland is a recovering drug and sex addict who lived a wild life working with the stars in Hollywood. His father is Professor John Sutherland, a respected British academic known for his writing on Victorian fiction. Now John has helped his son to write a book about his extraordinary exploits.