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TIL that the world’s quietest room is so silent that you can hear your own blood flowing and bones moving. The Anechoic Chamber at Orfield Labs in Minnesota holds the Guinness World Record for being the quietest place on earth with a background noise reading of -9.4 decibels.

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b9o7E TIL that if you fall asleep on a Tarantino set they will take a picture of you with a 3ft. dildo named "Big Jerry" next to your face and put it on the wall of shame. If you take it it down, it gets enlarged and put up again. If you take it down again, it gets printed on t-shirts for the whole crew.
LkwkQ TIL India has used 3 time zones in the past - Bombay, Madras and Calcutta, with Madras time zone (being in between the other two) used by the railways all around the country. Neither of them had the arbitrary UTC+X(.5) time offset. The present day IST is closest to the Madras time.
6Eje8 TIL our solar system is surrounded by a "ring of fire"🔥 🔥 🔥 an 89,000F wall of plasma created by the interaction between the sun and interstellar winds.
rRnyd TIL about unofficial medical jargon. FLK- "Funny Looking Kid” is one of the most common abbreviations used. FLK does not mean that the child looks comical but it refers to the child looking different from the norm.
8eQ4 TIL that in 2010 security researchers were invited to try to tamper with an Internet voting pilot. Within 36 hours they had made the website play the Michigan fight song and changed all the votes to write-ins for various fictional robots and computers.