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Byline: Martha McKay
Apr. 29--Fifty years ago this week, scientists at Bell Labs unveiled a small device built with a jeweler's precision that turned the sun's energy into electricity.
They called it a "solar battery."
The company assembled on the front lawn of Bell Labs' Murray Hill headquarters to announce creation of the world's first commercially viable solar cell.
"An amazingly simple-looking apparatus made of strips of silicon showed how the sun's rays could be used to power ... a transistor radio transmitter carrying both speech and music," the company wrote in a press release.
At the time, some pundits believed that solar power would one day provide for the world's energy needs.
But it didn't happen that way.