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TIL Trains have tanks of sand with tubes that shoot sand under each wheel to create friction so the train accelerates more efficiently

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8am1G TIL Nikola Tesla, widely known as the inventor of the AC power system, also installed the first hydroelectric plant at Niagara Falls in 1896. It was around this time that Tesla also disavowed coal and oil in favor of renewable energy sources.
wL0pE TIL that the brain is more active while asleep than it is awake. The brain while awake averages 40-60 observations per second, while the subconscious brain averages 11 million!
XE956 TIL on Jan 23, 1960, about 9 years before the moon landing, Jacques Picard and John Welsch reached the deepest point in the ocean, known as The Challenger Deep. They descended into the Mariana Trench for 4 hours and 47 minutes in a submarine barely large enough to fit the two men.
xV8MD TIL Agnes Waterhouse was the first woman executed for witchcraft in England (1566). She was accused of turning her talking cat into a toad, which then turned into a dog with horns and threatened her neighbor with a knife. She denied it, but was found guilty and hung.
j6kQR TIL that Jeff Cohen, who played Chunk in The Goonies, is an entertainment lawyer in Los Angeles who now represents his former co-star Ke Huy Quan, who played Data in The Goonies.