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The Spruce Goose is 75 years old

It flew only once, for about a half mile.

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It was a shocker!

Surgeons at the University of Pennsylvania reported how they used electricity to repair a fibular fracture in an October 1971 journal article.

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The Donora smog killed 20 and brought national attention to air pollution

It would be another 15 years before Congress directed the federal government to research air pollution.