The Invention Hunters travel the globe in their flying museum collecting the world’s greatest inventions! Today they’ve landed in a construction zone. These silly scientists think they’ve stumbled on incredible specimens of everything you’d never find at a building site, from roller skates and pogo sticks to swords and race cars. But what they really discover–with a kid as their guide–is how simple machines like pulleys, cranks, and levers are used to engineer tools ranging from jackhammers to dump trucks…and even toilets!Using simple explanations and diagrams and a heaping helping of humor, the Invention Hunters make the perfect companions for curious kids who are ready to learn about science, physics, engineering, history, and more.]]>
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Children's / Teenage fiction and true stories