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TIL that 'Penny dreadful', which started in Britain in the 1830's, were the first 'Pop Culture' product. The serial stories, mass produced for new, young readers, sold up to a million copies per week. Each chapter had 8-16 pages and cost a penny. Sensational topics included crime, the supernatural.

wLPn6 TIL Our knowledge of what Potassium Cyanide tastes like comes from one man's suicide note, which he meant for doctors to read. He noted it tasted acrid and burned his tongue.
pYY6N TIL that the movie "Jaws" used an engineless, fiberglass boat that could "sink on command" and resurface. The Orca II was a replica of the wooden Orca, a real boat used as Quinn's shark hunting ship at the end of the film. Pneumatic tubes tipped barrels mounted below Orca II to fill up and sink it.
4X8Yg TIL that in physics, acceleration is the change in velocity(speed), jerk is the change in acceleration, jounce(snap) is the change in jerk, crackle is the change in jounce and pop is the change in crackle.
nelMo TIL that Sneha Anne Philip is officially considered to be one of the victims of 9/11. Being a doctor who lived nearby, it's believed that she died trying to help the injured at Ground Zero. There's just one problem: no-one saw her there. Or, indeed, anywhere at all. She went missing on 9/10.
D1ABg TIL documents presented by a Pakistani official were found to forged because they were written in Calibri supposedly in 2006, but Calibri was only included in Microsoft Office 2007