› added 8 years ago

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TIL Kosher salt isn’t any more kosher than regular table salt. It gets its name from its use in making meats kosher by removing surface blood.

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WkneA TIL that until the 19th century the dominant sleep pattern in western societies was biphasic. After 3-4 hours of sleep, people would be awake for about an hour doing whatever before they sleep again until dawn.
Wk4Y9 TIL that Dolly Parton lost a Dolly lookalike contest. The winner was a man.
wlPM TIL some large telescopes use liquid mercury for a reflective mirror instead of glass. The rotating liquid assumes the paraboloidal shape regardless of the container’s shape and has a much lower cost than traditional glass mirrors.
lAaG TIL the makers of the “Piracy, it’s a crime” advert used the music in it illegally. They did not have permission to use it in the DVDs
OG4J7 TIL that snot becomes yellow when you're sick because of chemicals released by white blood cells that are in the mucus to fight infection; green snot indicates even higher levels of those chemicals