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TIL in World War II conscientious objectors took part in an experiment in which they were starved for six months to decide how to treat victims of mass starvation in Europe

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N7avQ TIL NASA gave away hundreds of trees that have been to the moon. They never kept track of who they gave them to. Now they are trying to find them. One was at the White House.
OopR6 TIL the largest industrial disaster in history occurred in 1975 during the cultural revolution in China. The Banqiao Dam collapsed during a typhoon which is estimated to have killed hundreds of thousands. The CCP covered up this disaster for almost 20 years.
9dxX TIL the first known robot was created around 400-350 BC and was a steam powered “pigeon” that was able to fly about 200 meters before it ran out of steam
j6NGa TIL in 2009 women in a Colombian village went on a sex strike to get the men to repair the only road in and out of town. 112 days later work began on the highway.
7ronp TIL an astronomer travelled to India in 1760 to observe Venus. His ship blew off course, and he missed the date. He stayed in India for 8 years to try again, but the sky was too cloudy. When he returned home, he had been declared dead, his wife remarried, his estate plundered, and his job lost