
Why does it do that? Develop an elemental understanding of magnetism, electromagnetism, electrochemistry, radio, thermodynamics, light and optics. Simon Quellen Field's 228-page paperback, Gonzo Gizmos, Projects & Devices to Channel your Inner Geek explains processes, equipment and scientific terms -- and then, for starters, tells you things like how to make a rotary steam engine in 15 minutes from a soda can, a candle and a few scraps of rubber tubing. It's the favorite of our resident geeks -- but not for kids unless they're working with an adult. That would be a mature adult. An insured, mature adult.
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92339 GONZO GIZMOS |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
For whiz kids of all ages from ScienceWiz™. All created by Berkeley science-education whiz Penny Norman, Ph.D., and all attractively boxed, with lavishly illustrated 30-48pp instruction books. The Inventions kit has (4) projects: using a small motor as a generator; building a telegraph; a DC motor; and an AM radio. You add a “D” battery. The Energy kit has (22) projects, including a flywheel generator, solar racer, and making a battery. You add a 9V and several “D” batteries. Both also use household items. Both are for ages 8 to 80. AWARDS: National Parenting Publications Awards Gold, Creative Child Magazine Top Choice, Scientific American Young Readers Book Award, Dr Toy 10 Best Educational Products
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93774 ENERGY | |
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93772 INVENTIONS |
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