TIL Anthony Daniels, who endured years of discomfort in the C-3PO costume, was so annoyed by Alan Tudyk (Rogue One) playing K-2SO in the comfort of a motion-capture suit that he cursed at Tudyk. Tudyk later joked that a "fuck you" from Daniels was among the highest compliments he had ever received.
TIL that Charles Darwin ate every animal he ever discovered
TIL that Euler's work in mathematics and physics touched upon so many fields that he is often the earliest written reference on a given matter. In an effort to avoid naming everything after Euler, some discoveries and theorems are attributed to the first person to have proved them after Euler.
TIL while playing the Wicked Witch of the West, Margaret Hamilton suffered second-degree burns due to a pyrotechnics accident, so she refused to do any more "fireworks" scenes. Later her stunt double was on a flying broomstick, which exploded between her legs and left her permanently scarred.
TIL the character Mario was originally named Jumpman. One night, the Nintendo President was translating the game’s introductory text when his landlord Mario Segali burst into the room demanding rent. When he left, the President decided to rename the character Mario, and the name has stuck ever since
TIL a pitbull mix named Dosha, following being hit by a car, was shot in the head by a police officer in order to stop the dog’s suffering. At an animal control center, her body was put in a freezer. Two hours later, she was found alive. Dosha was taken into surgery, and survived the ordeal.
TIL when NBCs Chuck was at risk of being cancelled, fans launched a "Save Chuck" campaign where they bought a footlong at Subway on the day of the finale to spur a sponsorship. Zachary Levi led a convention of 200+people to a Subway, and ended up working behind the counter to ensure everyone was fed