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Nov. 16, 1904: Vacuum Tube Heralds Birth of Modern Electronics
Like many other patented inventions of the late 19th and early 20th centuries, the exact origins of the vacuum tube are a bit murky. But John Ambrose Fleming usually gets the credit, and the advance is...
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Jan. 13, 1942: Ejection Seat Works, Pilot Elated
1942: At the height of World War II, German test pilot Helmut Schenck becomes the first person known to use an ejection seat to successfully exit his aircraft in an emergency situation. Schenck,...
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