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TIL - John Quincy Adam's would regularly go skinny dipping in the Potomac River.

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mxdnp TIL the Hawthorne Effect is when an individual modifies their behavior because they are being observed. Somewhat like a placebo effect, the novelty of being a research subject and the increased attention could lead to behavior changes that result in false positive & inaccurate experiment conclusions
GYOWG TIL That mount Everest became so popular that in 2019 there was a 12 hours long line of around 200 people at the very peak, with a few people dying because of it
44ER TIL a man has invented a soccer ball that never goes flat to help children in third world countries
nGb7 TIL That Hungarian psychologist László Polgár wrote a book on how to raise a genius. He showed his ideas to his teacher, they got married and raised their three children to be chess grandmasters, two of them are record breakers and one became the first female to beat the top-ranked male.
MGOb TIL that if you win the million dollar prize on the McDonald’s monopoly game, they actually pay you $50,000 per year for 20 years.