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TIL Allvar Gullstrand applied the methods of physical mathematics to the study of optical images and refraction of light in the eye and received the Nobel Prize in Medicine in 1911. Due to the math in his works, it is lamented there are few ophthalmologists and physiologists who can understand it

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YGWB TIL that “crab mentality” describes selfish, short-sighted thinking best described by the phrase “if I can’t have it, neither can you.”
Wlo4 TIL that the first confirmed “high five” was between LA Dodger teammates Dusty Baker and Glenn Burke on Oct 2, 1977. After Baker hit his 30th homerun of season, Burke met him at home plate with his hand held high over his head and Baker smacked it, later saying “It seemed like the thing to do.”
PYJNn TIL Namarrkon is an important creation ancestor (in Burrungkuy (Nourlangie) N. Territory, Australia) who is responsible for the violent lightning storms that occur every tropical summer -- And he looks like an alien.
16Qwd Today I learned that Muhammad Ali's star on the Hollywood Walk of Fame is on a wall instead of on the ground. This is because Ali, a devout Muslim, did not want people stepping on the name "Muhammad".
kO55E TIL a guy who posted a video of himself viciously abusing a dog got no jail time, was then viciously beat up in a revenge attack by an animal lover, and the animal lover was released after police interrogation.