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Dec. 2, 1942: Nuclear Pile Gets Going Dec. 2, 1957: Nuclear Power Goes Online

Dec. 2: It’s a double milestone for nuclear energy. The first man-made sustained nuclear chain reaction was created this day in 1942. And just 15 years later, the first full-scale nuclear power plant...

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Feb. 11, 2005: This Guy’s No Dummy

2005: Samuel Alderson, inventor of the automotive crash-test dummy, dies. His creation saved countless lives … and amused millions along the way. Alderson graduated from high school at age 15, but the...

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May 16, 1960: Researcher Shines a Laser Light

1960: Physicist Theodore Maiman uses a synthetic-ruby crystal to create the first laser. Maiman began tinkering with electronic devices in his teens and even earned college money repairing appliances...

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Aug. 8, 1876: Run This Off on the Mimeo

Thomas Edison receives a patent for the mimeograph. It will dominate the world of small-press-run publication for a century.

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