Posted by Max Rutherford in
Solar energy on 09 8th, 2009 |
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Who discovered solar energy
Each year, the Earth receives approximately 174 petawatts of solar radiations. Out of the total amount of radiations obtained, 30 percent is reflected back and the rest of it, that is 3,850,000 exajoules, is absorbed by the atmosphere, land and oceans. It has been estimated that only a fraction of the...