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TIL The Russian tried to dig a hole through the Earth's crust in the 1970's. They reached 40,318 feet deep before they stopped. It is still the deepest hole humans have ever dug.

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ZRko TIL after George Orwell’s death, the CIA secretly bought the rights to 1984 and Animal Farm and clandestinely produced the first film version of 1984 and the critically acclaimed animated film version of Animal Farm.
xYok TIL 95% of the body’s “happiness hormone, serotonin, is found in the bowels.
aylb TIL The prototype of the chainsaw we are familiar with today in the timber industry was pioneered in the late 18th century by two Scottish doctors as a surgical tool to aid in the process of diffucult childbirth
6vB7 TIL: When Rialto police began wearing cameras there was an 88% decline in the number of complaints filed against officers, compared with the 12 months before the study. Officers also used force nearly 60 percent less often. Force used was twice as likely to have been by officers not wearing cameras.
p86RA In Delhi, air quality index (AQI) levels are usually a severe 200 on a good day (anything above 25 is deemed unsafe by World Health Organization). During peak pollution periods last year they soared well into a life-threatening 900 and sometimes off the measurable scale. But as Delhi’s 11m registered cars were taken off the roads and factories and construction were ground to a halt, AQI levels have regularly fallen below 20. The skies are suddenly a rare, piercing blue. Even the birdsong seems louder.