Tuesday 11 September 2012

SOLAR WATER HEATER WITH NATURAL SUN HEAT


There are four primary sources of energy viz. petroleum, natural gas and natural liquids, coal and wood.  Excepting wood, all the common sources have finite supplies.  The lift-time is estimated to range from 15 years for natural gas to nearly 300 year for coal.  Therefore, as these non-renewable sources are consumed, the mankind must turn its attention to longer-term, permanent type for energy sources.  The two most significant such sources are nuclear and solar energy..... MORE

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