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A recurring solar event called a grand minimum could 'cool' the sun for about 50 years.

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e095g TIL of Chinese assassin, Shi Jianqiao. In the Warlord Era (1916-1928) when Shi was 19, her warlord father was defeated & executed by a rival, Sun Chuanfang. Shi spent her 20s tracking Sun down, killing him in 1935. Chinese society was so moved by her act of filial revenge that the court pardoned her
P1ANO TIL any person who succesfuly parachutes out of a failing aircraft is eligible to join the caterpillar club. You get a certificate as well as a caterpillar shaped pin and get to join their annual gatherings. People who escaped a failing aircraft with no parachute are denied entry
8aZRK TIL Synchronized swimming is one of the world's worst sports for concussions--one coach estimated that 100% of his synchronized swimmers have sustained a concussion at some point during their career
ZARa TIL that the red, white, and blue stripes on a barbers pole represent arterial blood, bandages, and venous blood respectively. This is due to the fact that barbers used to perform minor surgeries as well as grooming services.
d84Q7 TIL: The observable universe is a spherical region of the Universe comprising all matter that can be observed from Earth at the present time, because electromagnetic radiation from these objects have had time to reach Earth since the Big Bang. Everywhere has its own observable universe