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Thirty ready-to-color illustrations chronicle the past and future of environmentally friendly energy sources. Ranging from ancient Greek and Roman water wheels and medieval windmills to modern solar cell panels, these illustrations depict systems of levers, treadmills, pedals, turbines, and other nonpolluting methods of generating power. Captions identify each drawing.
$3.99
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Our fourth generation wind turbine kit! Wind is one of the most promising sources of clean, renewable energy available today. With this kit, you can assemble a realistic wind turbine complete with electric generator and adjustable rotor blades that are designed with complex aerodynamic curves to look and work like modern-day wind turbine blades. Then, conduct experiments to optimize the turbine’s performance by adjusting the angle of the blades and discover how to use the wind turbine to light u
$45.00
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Build six awesome bots that move without any batteries or electricity. The secret behind these fascinating machines is one of the oldest power sources in the world: wind! A full-color manual guides you in assembling six models one at a time from over 200 pieces. Build a big-wheel tricycle, quadruped, soaring machine, drilling monster, walking robot, and even a wind-powered yacht. To make them all go, the kit also includes the pieces to build a hand-powered wind generator. As you build and experi
$30.00
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This activity book provides hours of fun and education with 48 drawings of windmills from around the world to color. The mills were built in the 1700s and 1800s. Many have been restored for visitors today. Learn a little history for each mill, from New England, the American Midwest, West Coast, Texas, Maryland, and Virginia, and across the Atlantic to mills in Belgium, France, the Netherlands, Ireland, England, Portugal, and Greece. Together with your children, learn curious facts, including the
$6.99
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Free, clean, and sustainable energy: wind power is an essential resource everyone can harness. This comprehensive and compact historical work provides everything you need to learn about the theory and construction of everyday windmills, from small ones intended solely as models to those large enough to generate electricity. Powell provides all the necessities to get you on your way, including detailed, step-by-step instructions, illustrations, and designs for every part of the project. Types of
$12.95
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