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TIL that a quantum transition that lasts 1/1,000th of a second is at the root of genetic mutation

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BgVgb TIL The Persians had ancient refrigerators called "yakhchals" to preserve the ice and keep it cold underground until the summer, the yakhchal also had a ventilation system that allowed the cold air to enter and the warm air to escape, keeping the temperature inside low.
xZm1 TIL In 2010 at Wimbledon the longest tennis match ever was played. It lasted 11 hours and 5 minutes and took place over 3 days.
AbY7 TIL that scientist (Dr. Robert G. Heath) at Tulane University discovered the “pleasure centers” of the brain by zapping it with electricity in the 1950s, giving a woman a 30-minute orgasm.
NVZM TIL after the french revolution, France briefly used a new calendar based on a decimal system; 10 days a week, 10 hours a day, 100 minutes per hour and 100 seconds per minute, and starting at Year 1.
d8R6E TIL a 40 acre Montana fire was caused by a hawk landing on power lines while clutching a large snake. The wriggling snake touched a second power line, completing the circuit and electrocuting both animals with up to 700,000 volts.