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Bell Labs on Twitter: "Oct 4, 1955, Bell Labs conducts 1st phone call made via #solar power in Americus, GA but deemed too costly for widespread rollout. Our own Daryl Chapin, Gerald
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Bell Labs on Twitter: "#OnThisDay in 1954, Bell Labs researchers demonstrated the 1st practical silicon solar cell, powering a toy Ferris wheel & a radio transmitter! A new dawn for solar power
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