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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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neloY TIL that some dinosaurs, due to their enormous size, would have very lightweight bones supported by systems of air sacs. These features were precursors to adaptations that would eventually allow for avian flight.
xAQD TIL that Charles Darwin’s grandfather Erasmus posited early theories of evolution, wrote a book illustrated by poet William Blake, invented a steering mechanism later used in automobiles, opposed slavery and advocated formal education for girls.
vxNB TIL A Russian town was once “besieged” by hungry bears with as many as 30 bears being reported circling the small town
kJ7l5 TIL: The sand around the Bahrain International Circuit is glued down to stop it from blowing onto the track during Formula 1 races.
0QJj TIL: 5 years after birth a sperm donor for a lesbian couple was asked in Kansas to pay child support bills that could run into tens of thousands of dollars.