Who successfully built and operated the world's very first working laser in 1960?
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Theodore Maiman constructed the first functioning laser at Hughes Research Laboratories, using a synthetic ruby crystal to produce a bright red beam. While Charles Townes won a Nobel Prize for developing the theoretical foundations and the precursor 'maser', Maiman's practical breakthrough paved the way for modern barcode scanners and fiber optics. Photo: ESO/A. Ghizzi Panizza (www.albertoghizzipanizza.com), Wikimedia Commons, CC BY 4.0.
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Source: Wikipedia (CC BY-SA)
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