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TIL that music can be perceived in a faster or slower tempo - this is due to being in a physiological flow state, music might seem slower when focussed and faster when it's in the background

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A9ag TIL That unwashed eggs still have their protective coating, the bloom, and are safe to store on the counter. Many modern countries wash eggs before sale so they ‘look’ cleaner and safer, but this opens the pores of the shell for infection from bacteria during storage time.
RrE7 TIL that Mikhail Kalishnikov, inventor of the AK-47, greatly regretted having invented the weapon, and is quoted as saying “I would prefer to have invented a machine that people could use and that would help farmers with their work - for example a lawnmower.”
7rrDZ TIL of a historical marker on Galveston Island marking the site of the Battle of Three Trees in 1819: the pirate Jean Lafitte and 200 men battled with 300 Karankawa Indian warriors after the pirates kidnapped a Karankawa woman. The Karankawa retreated but the fate of the woman isn’t known.
gomA TIL Humanity has produced an estimated 108 billion individual people over the past 50,000 years. That means today’s 7 billion people represent about 6.5 percent of everyone who’s ever lived.
oBprR TIL the parliament of Iceland, Althing, is the oldest surviving parliament in the world. It was founded in 930 CE and still held sessions even after Iceland's union with Norway in the 1200s.