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Tungsten Lightbulb

While Thomas Edison’s 1879 lightbulb represented an epochal advance, it remained far from perfect: its carbonized cellulose filament gulped power. In 1905 managers at General Electric’s pioneering research laboratory in Schenectady, New York, decided to figure out a way to improve filament performance. They hired 32-year-old William Coolidge, a research assistant to Arthur Noyes at MIT’s Department of Chemistry.

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