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TIL: In 2009, a researcher received a grant to explore novel materials for applications in electronics. When he tried heating the oxides of manganese, yttrium and indium at 2,000 °F, he inadvertently found the bluest blue pigment to date.

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via reddit.com

opAA TIL that the rabbit used in Monty Python and the Holy Grail was a real rabbit. Also, the crew used a red dye which they thought was washable, but then had to halt shooting while they desperately attempted to wash the dye off before the owner arrived.
Eg5Bp TIL that most Japanese people have only one pinky toe knuckle instead of two. Thus, most Japanese people have only 204 bones instead of 206. This went completely unnoticed until 1995.
RKxj TIL the Latin word “arena” means “sand” and we get it’s modern definition because Romans covered the colosseum floor with sand to absorb blood
yVnNM TIL Ken Norton broke Muhammad Ali’s jaw in their first fight. However it is disputed which round this was in, with Ali’s camp claiming it was round one and Norton’s saying it was round 11.
RdZ6 TIL that in the Netherlands there are dozens of public facilities where you can bring recreational drugs including weed, cocaine and ecstasy to test if they are safe