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TIL that most tap water when left out for a day will increase in pH approx. 1 unit (turns more basic) as dissolved CO2 degasses

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4d65 TIL that Will Smith doesn’t use profanity in his lyrics because his grandmother wrote to him “intelligent people do not use these words to express themselves”
9YbyB TIL that Deep Purple's Smoke on the Water sounds eerily similar to Astrud Gilberto's Quiet Maria recorded in 1966
Y7WGG TIL during hibernation, Arctic ground squirrels' core body temperature reaches temperatures down to −2.9 °C (26.8 °F) and the heart rate drops to one beat per minute
0w4xN TIL in Eastern European folklore, many vampires suffered from OCD, specifically having strong compulsions to count. Bags of rice or seed were often placed at graves to occupy them at night by couting the grains. This is where the inspiration for Count Von Count from Sesame Street came from.
wo096 TIL: The urban legend that gang members would drive with headlights off, then chase and kill drivers who flashed the high beams is false.