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TIL in 2006 FBI warned of KKK members in the police force

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epnEE TIL An estimated 1-3% of the population is virtually allergic to much of their food, especially processed or canned food and may not know it: Histamine Intolerance: the Current State of the Art
GAJGN TIL The most powerful punch in the animal kingdom belongs to the Mantis shrimp
jN7Qp TIL that Marion Stokes built an archive of network, local, and cable news, in her home, one tape at a time, recording every major (and trivial) news event until the day she died in 2012 at the age of 83 of lung disease.
7r1or TIL the "Cheerios effect" is an interesting fluid dynamics phenomenon that happens in cereal bowls. When there are just a few bits of cereal left floating on top of the milk, they tend to cluster together in the middle or around the edges of the bowl, rather than dispersing across the surface.
M7bd8 TIL that average salary of an engineer in Pyongyang is $2 a month + up to $50 in bonuses and about 600 grams of rice and corn. It’s half of that in other NK cities (interview with top NK expert, timestamp - 2:03:06)