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TIL about YInMn Blue, a near perfect blue colour, which was discovered accidentally in an Oregon State University lab and is noteworthy for its vibrance and unusually high near infrared reflectance

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N7vkM TIL about the Osborne 1, the first commercially successful portable microcomputer. Released in 1981, it weighed nearly 25 pounds, had to be plugged into the wall and cost $1,795 (or roughly $5,000 in today's dollars).
v914 TIL “Coke” is the second most recognizable word across all languages, with the first being “OK”
jNXln TIL Union Pacific train operators once faced a real life "trolley problem" when 30 of its cars broke loose during a switching operation and headed at high speed without breaks toward downtown Los Angeles -- and decided to derail them on a side track, destroying two homes and injuring 13 people
e0n1n TIL Terry Crews supplemented his income in the NFL by painting portraits of his teammates. In some cases, this was his primary income. He typically earned $5,000 for a two-month commission to support his whole family.
Q17d TIL during truce talks between North and South Korea, each country would attempt to have the biggest flag on their table. If S.K. brought a large table flag, the N.K. would bring an even larger flag to the next meeting. This ended when both parties had a meeting which set table flag size standards.