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TIL Scientists reveal how 34.5 million-year-old fish fossils help build up rare earth mineral deposits used to make LED, wind turbines, and rechargeable batteries

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via reddit.com

OGLJ7 TIL that Konrad Schumann, the subject of the famous photo of a soldier escaping communist East Berlin to the capitalist West, went to visit his family in former East Germany after the fall of the Berlin Wall. They rejected him, considering him a traitor, and he committed suicide several years later.
7kQP TIL The basal epidermal cells of the human foreskin contain estrogen receptors, whose purpose is not yet fully understood and requires further study
XDKP TIL Robert Louis Stevenson wrote Dr. Jekyll and Mr. Hyde in three days. His wife found it too gruesome, so he promptly burned the manuscript. He re-wrote it, once again in three days.
9EZ7 TIL A pair of twins were separated at birth, adopted and raised by separate families on 2 separate continents. They were reunited when one of them saw the other starring in the movie 21 & Over, saw the resemblance and contacted her via Facebook.
On6L TIL: Crows can remember an individual human’s face for up to two years, and warn other crows if the person is dangerous