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TIL that approximately 6% of divorced couples remarry the same person

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R7NE8 TIL that the volume of grey matter in an area of the brain called the precuneus is correlated with subjective happiness score and a 6-week mindfulness meditation course was found to correlate with significant grey matter increase in the precuneus.
GAo1G TIL A 20mm Kellner eyepiece through 2 inch aperture solar telescope produces 18x view of the Sun. A refractor telescope shows slightly sharper views of the sun’s disk than reflector telescopes, showing detail in and around sunspots
7rXyO TIL Frederick the Great, Prussian Monarch from 1740 to 1786, known for his tactical genius on the battlefield, is considered by historians to be primarily homosexual in orientation. Following a demoralizing defeat, he wrote "Fortune has it in for me; she is a woman, and I am not that way inclined."
V6QQ TIL that Pyrrhus of Epirus, an ancient Greek General, died while fighting an enemy soldier in the streets of Sparta. The soldier’s mother, who was watching their battle from a rooftop, threw a tile that hit Pyrrhus in the head and paralyzed him, sealing his fate.
Zppja TIL some people are born tongue-tied. This anomaly restricts mobility of the tongue due to an unusually short, thick lingual frenulum, the membrane connecting the underside of the tongue to the floor of the mouth. The condition is easily fixed by surgically cutting the frenulum