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TIL Pareidolia is a type of illusion or misperception involving a vague or obscure stimulus being perceived as something clear and distinct. For example, in the discolorations of a burnt tortilla one sees the face of Jesus.

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negBb TIL In 1987, a Boeing 737 hit a fish midair, about 400 feet past the runway. Upon inspection, they found a greasy spot with some scales, but no damage. The bald eagle which dropped the fish also escaped injury.
P1Jje TIL of English lawyer Frederic Weatherly (1848–1929), who inadvertently created the coxless fours in rowing by jumping out of the boat at the start of the race to save weight. Oh, yeah, and he also wrote about 3,000 song lyrics, including "Danny Boy".
JGKQ TIL that rubies and sapphires are scientifically the same mineral. Rubies are the red variety and sapphires encompasses any other color, with blue being the most popular and common.
v1jwK TIL 6th grade student Hunter Scott did a research project on the USS Indianapolis in 1997 which eventually led to the exoneration of Captain Charles B McVay, who had widely been held responsible for the sinking of the ship in 1945 by Japanese forces. McVay committed suicide in 1968.
VMyWk TIL the Inka never developed writing but instead had a system of tying knots called khipu in which the color, direction and structure of the knots communicated different information. While most of it is numerical, fully cracking the code reveal a phonetic khipu alphabet with records of history.