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TIL that playing Tetris after a traumatic event can reduce the number of flashbacks later experienced

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OG8eY TIL that Craig Ferguson, the host of The Late Late Show would rip up his blue note cards (which contained potential questions for guests) as a way of signifying that what was coming wasn't really planned. Sometimes, that brought a lot of empty riffing with a celebrity who just couldn't keep up.
DQaVD TIL: Ionization smoke detectors, one of the two most common home smoke detectors, contain radioactive material (americium-241) to detect smoke. There is no health threat as long as the detector is used as directed and not damaged.
Jmy1 TIL that saturns rings are only ~33 feet thick
7rJ4r TIL actress Anne Ramsey - better known as Mama Fratelli in "The Goonies" and Mrs. Lift in "Throw Momma From The Train" - had a famously unique speech slur left over after surgery from esophageal cancer in 1984. That cancer would later return in 1988, and was the ultimate cause of her passing
pxp4 TIL that modern flat glass is created by floating molten glass over molten tin. This is what gives glass its uniform, smooth surface.