In The News Posted March 3, 2019 Share Posted March 3, 2019 BERLIN, March 3, 2019 /PRNewswire/ -- In its early stages solar power also developed quite slowly. Although first implemented in 1958 for space travel, the 70s saw the use of solar cells primarily in small-scale applications such as pocket calculators, and almost 20 years passed before an ... View the full article Link to comment Share on other sites More sharing options...
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