Meet the masterminds behind the greatest inventions in history with this nonfiction book for kids aged 7 to 9.Step into Leonardo da Vinci's workshop, relax onboard on Hideo Shima's speedy bullet train, and join movie star Hedy Lamarr to bounce ideas around in between takes. Inventors looks at the towering achievements of more than 50 inventors in great detail. The stories are as unusual as they are unique. From Mr. Kellogg, who accidentally created cornflakes after leaving gr