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TIL Dogs have evolved to understand human laughter

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LQQwP TIL that the CSI:Crime Scene Investigation franchise put out a kit for kids that contained asbestos in the fingerprinting powder. Lead, arsenic, and other toxic chemicals were also found in some kits.
Ypg5x TIL The NASA Space Shuttles operated with 1mb of RAM in five redundant computers. That's less than the average .mp3 file.
yQA7v TIL that before found The Doors with Jim Morrison, Ray Manzarek graduated from DePaul University with an economics degree, spent a year in US Army Security Agency as a prospective intelligence analyst, and received a M.F.A. in cinematography from UCLA.
VMv18 TIL The vibrator was invented before the vacuum cleaner (1883)
4X1Zb TIL that Tanuka are seen as an animal of luck in Japan because of their hude ballsack (Just look at those pictures!)