Read e-book online Doable Renewables. 16 Alternative Energy Projects for Young PDF

By Mike Rigsby

Humankind must locate and increase substitute varieties of strength. because the world’s inhabitants maintains to develop, extra humans will desire entry to lighting fixtures, verbal exchange, transit, and computing. Fossil fuels are getting used up at an alarming speed, yet different strength sources--solar, wind, waves, “waste” warmth, or even human power--are either renewable and environmentally pleasant. The tasks during this publication may help any budding scientist build and discover operating versions that generate renewable, substitute energy.

            In Doable Renewables, readers will construct a Kelvin water drop generator out of six recycled cans and alligator clip jumpers, a solar-powered seesaw from a wide dial thermometer and a magnifying glass, and a windmill from 8 yardsticks, PVC pipe, cardboard, and converter generator. childrens will examine the energy-generating homes of a sun phone, a radiometer, a Nitinol warmth engine, and a Peltier phone. They’ll even construct a human-powered table lamp.

            every one undertaking features a fabrics and instruments checklist, in addition to on-line details on the place to discover really expert elements. And for younger scientists, writer Mike Rigsby demonstrates the way to use an infrared thermometer, a electronic multimeter, and an electric utilization computer screen to check their designs. Armed with this choice of technological chances, can the answer to the earth’s strength situation be a long way off?

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In a few moments, the Solar Drinking Bird should bob back and forth, and continue until the sun goes down. 01(001-076)_chap01-11:DoableRenew 28 7/22/10 5:21 PM Page 28 Doable Renewables You can paint and color the cardboard shade to make the project more attractive. More to Think About • Will a different color paint work better on the bird’s body? • Will a large hat on the bird work as well as the cardboard sun shade? • Does the bird dip faster if the sun is brighter? • Can you use a light to make the bird dip?

Com, model MM-7) Warm hand Explore It A Stirling engine can be built to operate on the heat from your hand. As little as a 7° Fahrenheit difference between the hot and cold sides of the engine is all that is necessary to make one operate. Today, most Stirling engines are built for educational purposes. The better the engine, the more it costs. Engines that will 35 01(001-076)_chap01-11:DoableRenew 36 7/22/10 5:21 PM Page 36 Doable Renewables operate from the heat of your hand are skillfully machined (like a fine watch) and expensive (like a fine watch).

Com, Part # 3053617) Black enamel paint (such as Krylon SCB-028 Flat Black) and paintbrush Corrugated cardboard, 1⁄8 inch thick Scissors Glue Colored paint or crayons (optional) 21 01(001-076)_chap01-11:DoableRenew 22 7/22/10 5:21 PM Page 22 Doable Renewables Build It To make the Drinking Bird drink, you usually place a cup of water in front of it. When you place the bird’s beak into the water, its fuzzy head gets wet. Water on the wet head evaporates (unless the humidity is very high) as it bobs back and forth, cooling the head.

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Doable Renewables. 16 Alternative Energy Projects for Young Scientists by Mike Rigsby


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