This Day in Geek History: December 20
1879
Thomas Alva Edison privately demonstrates his incandescent light at Menlo Park, New Jersey. He invented the lamp on October 21, 1879 after thirteen months of experimentation to discover a suitable material for the filament and discovery that carbonized cotton filaments could operate for forty hours in the vacuum of a glass bulb. The first public demonstration of the incandescent light bulb will be given at Menlo Park on December 31 1879.
1907
Physicist Albert Michelson becomes the first US scientist to receive the Nobel Prize. He is awarded the prize “for his optical precision instruments and the spectroscopic and metrological investigations.” Specifically, he designed the highly accurate Michelson interferometer and used it to accurately measure the speed of light, establishing the Michelson Effect, which states that the speed of light is a constant.
1909
Volta Picture Theatre, Ireland’s first cinema, opens in a disused warehouse on Mary Street, in Dublin, under the management of James Joyce.
1910
AT&T acquires control of thirty percent of the Western Union Telegraph Company.
1938
Vladimir Zworykin receives a patent for the iconoscope, an early television camera tube, fifteen years after filing his application.
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