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History of Science

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illustration of scientists watching first sustained fission chain reaction

On December 2, 1942, scientists watched as the nuclear reactor that had been constructed beneath the University of Chicago’s football stadium produced the first controlled, sustained fission chain reaction.

Hedy Lamarr

DOUBLE LIFE  Actress Hedy Lamarr longed to be recognized for her inventions.

Illustration of Henry Hudson meeting Native Americans

LOOKING FOR NEW LANDS  A historian argues that climate, along with other factors, impeded Europeans early attempts at colonizing North America. English explorer Henry Hudson is depicted here meeting Native Americans in 1609 in what’s now New York.

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