Celebrate Earth Day all year long with this daily calendar. Filled with hundreds of tips on eco-friendly living this calendar will help you protect the environment and make the world a better place!



Feb 6

This is a large Fresnel Lens focused on a copper tube with a 12 V pump (powered by two 6 watt solar panels) with water circulating through the unit. Water, seven gallons, was raised from 63 F to 106 F in one hour. It is not super efficient as heat is lost at the open top of the glass tank. This is designed to illustrate one method of solar heating a swilling pool with a Large Fresnel Lens.

TESTING HDD AQUA BLOCK.

Duration : 0:8:21

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Technorati Tags: ALTERNATIVE, COOLER, CPU, energy, FRESNEL, HDD, LENS, LIQUID, PANELS, PARABOLIC, PHOTOVOLTAIC, POWER, PV, REFLECTOR, solar, sun, water

Dec 13

This video show how a Fresnel Lens can be used to generate heat in water for a pool. It also illustrates the inability to heat water only. and the need for a dark target. The heat sink used in this video falls short of being a true dark object but the green color looked cool.

Duration : 0:6:21

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Technorati Tags: AL, ALTERNATIVE, EARTHDAY, energy, FRESNEL, GORE, GREEN, GREENPOWERSCIENCE.COM, HEAT, HEATING, LENS, pool, POWER, SINK, solar, SOURCE, swimming, water