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TIL that helium isn’t the only gas capable of changing the sound of your voice. Sulfur hexaflouride makes your voice deeper!

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QNl0M TIL in some counties in Washington state there's actual laws deeming it illegal to kill Bigfoot! Its been in the books for 50-plus years in one county. What are some other odd laws?
VkdD TIL the original founders/owners of Macy’s died on the Titanic and were the old couple in the movie who went to sleep as the ship went down.
xxwk TIL of Jack Whittaker, who won the largest jackpot in history and donated much of his winnings, before a string of horrible luck. He was robbed, lost his wife to divorce and his granddaughter and daughter to suicide. He later said that winning the lottery was the worst thing to ever happen to him.
4kvnR TIL in Shanghai every weekend there is a marriage market, parents and grandparents of unmarried adults gather in a park and trade information on their children/grandchildren (height, weight, income, occupation...) with the goal to find them a suitable partner.
MKJa TIL before the horse was introduced in North America, the Navajo word “łį́į́ʼ” (literally meaning “pet”) was used to refer to dogs. But when horses became the new favoured pet, łį́į́ʼ became the word for “horse”. And dogs are now refered to as “łééchąąʼí”, “shit pets”.