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27

TIL It should be spelled ballsac

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8OPa TIL we laugh when we’re tickled because our brain believes we are about to be injured (ticklish spots are also spots of vulnerability) and is using laughter to convey submission to an aggressor
Br5DL TIL about the Medlar, a fruit that was once popular in ancient and medieval times but was nearly forgotten in the 20th Century (Deleted and reposted due to title error in the original post, which stated that this fruit is enjoyed rotten. In fact, bletting is a kind of ripening)
GrjJ TIL that the replacement for ivory billiard balls were ones made from nitrocellulose, which occasionally exploded on impact with another ball. A bar owner wrote to the inventor saying that they didn’t bother him much but for the fact that every man in his saloon immediately pulled a gun at the sound
Gy8J TIL In 2012, a cat saved its owner’s life the night he was adopted. The owner got a diabetic seizure, the cat brought her back to consciousness, and then ran to her son’s room pounced on him until he woke up and called for medical assistance.
AD8Ex TIL that actor Lance Henriksen was illiterate until the age of 30, when he received his first acting role. For his first role, he also put the entire script to tape with the help of a friend, learning everyone's part in addition to his own.