Mad Machines And Dotty Devices

Mess up your hair and work on your crazy laugh, it's time to bring out your inner mad scientist From using a balloon to create a rocket, to powering bottles through the water with paddles, these tried and tested ideas will soon have you on your way to techno-wizardry. You'll also learn to spy on neighbors with a secret Spyscope, or look at your friends upside down with a pin-hole camera. All the projects use everyday materials, a brief fact file explains the science and technology, and there is extra information on nutty inventors and amazing machines. Editorial Reviews About the Author Susan Martineau is a children's author whose books include 50 French Phrases, 50 Spanish Phrases, and Slimy Science and Awesome Experiments. Martin Ursell is an author and illustrator of children's books including The Big Book of Experiments and Activities, Dragon Boy, and You Can Draw Wild Animals.