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TIL of a direct correlation between the crease on an earlobe to the prediction of coronary artery disease CAD called the Frank's Sign. The majority of studies find this to be the case but its still not known as to why or if age itself is the predominant factor in developing heart issues.

dGbK TIL of a weather phenomenon that struck Kopperl, Texas in June 1960 dubbed “Satan’s Storm.” During this event, temperatures suddenly rose around midnight to 140°F, wind gusts blew at over 75MPH and crops were instantly scorched, causing terrified residents to believe the world was ending.
d1bd TIL in 2014, Ireland was outraged after an Australian article suggested that the Irish used potatoes as a source of currency.
ZQJQ TIL “the phobias that people with panic disorder develop do not come from fears of actual objects or events, but rather from fear of having another attack.”
KYd8J TIL about a 16 year old art student who lost most of her fingers when she plunged her hands into a bucket of plaster until it set. The heat of the chemical reaction caused terrible burns when fellow students and teachers failed to remove the plaster with a hammer. The school was fined only £20,000.
e8ek TIL In 1914 the Coca-Cola Company was flooded with look-alike competitors. They requested design proposals for their product: a “bottle so distinct that you would recognize if by feel in the dark or lying broken on the ground.” It became a classic example of design patents for law students.