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TIL The black-and-white Navigation Cameras on Curiosity’s mast show that it had to manoeuvre its robotic arm to act as a selfie stick. The arm and turret along with it were moved to face the rover and had to be moved a lot to capture the 86 images.

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oBkAK TIL Jim Carrey received training from a CIA adviser on how to deal with torture while filming "HOW the Grinch Stole Christmas". His Grinch costume and makeup would take hours to apply, and it felt like he was being buried alive. He almost quit the movie after the first day.
nelPo TIL that in 1847, a doctor performed an amputation in 25 seconds, operating so quickly that he accidentally amputated his assistant's fingers as well. Both later died of sepsis, and a spectator reportedly died of shock, resulting in the only known procedure with a 300% mortality rate.
4XReg TIL that the last survivor of the Crimean War, which ended in 1856, died in 2004 at the age of 160. She was a female tortoise named Timothy who was a mascot for several British naval vessels during the war.
rRAV1 TIL that although considered one of the most toxic animals on earth, if a poison dart frogs is raised in captivity will never develop venom. This is likely because they assimilate plant poisons which are carried by their prey.
oWjA TIL a Rhode Island woman attempted to sue her husband for slander after he called her a whore in a crowded restaurant. After being presented evidence, the judge officially ruled that the husband’s statement was accurate. She then appealed to the Supreme Court, only to have that judge agree as well.