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TIL that introverts tend to have larger, thicker gray matter in their prefrontal cortex — a region of the brain that is linked to abstract thought and decision-making — while extroverts have less gray matter (2012 study by Randy Buckner of Harvard University)

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v1BdR TIL - in 2001, Steve Jobs described a secret new technology that would be bigger than the internet. He also claimed cities would be built around the new device. It was later revealed to be the segway scooter
wLNj1 TIL Looking at the sky through a cardboard paper towel tube and through a standard drinking straw is about the same as the difference in the amount of sky seen in ordinary binoculars and a small telescope. Binoculars in astronomy are used for their wider field of view
VBBQm TIL that in 1969 Jeff Wayne wrote a jingle for a Lego radio commercial. Years later he added lyrics to it and used it in his famous 'War of the Worlds' musical.
mxM4M TIL Rasputin's penis is a foot long and now resides in a museum in Petersburg
EmJW TIL one of the top 10 most secure places in the world is a unique multi-storey car park in Derby, England. The architect designed it in response to his car window being broken and his stereo stolen. Other entries in the top 10 include Fort Knox, Air Force One, and Saddam Hussein’s Baghdad bunker