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TIL that the oldest door in Rome, the Pantheon Gate, is over 2000 years old and weighs over a tone. Despite this, it is very well balanced and can actually be opened by one person.

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QNlVp TIL gecko feet don't work like glue, suction cups, or velcro; by changing the angle of the hairs on their feet, geckos can sync-up the movement of electrons in the hairs and the electrons on the surface they want to walk on, generating van der Waals forces that adhere them to walls/ceilings at will
8l5X TIL: Writer/Director Bob Clark refused to make a sequel to Porky’s unless the studio agreed to let him make a vanity project “A Christmas Story” with a budget of only $4,000,000.
5ZQB TIL that Galveston, Texas was ruled by French pirates between 1816 and 1821
kJ9ve TIL Carlos Mavroleon, heir to a shipping tycoon, was pressumed dead after a trip to France. He ended up in Pakistan and returned home 2 years later, now a muslim and fluent in Pashtun. He mingled in high society, left again to fight the soviets in Afghanistan, and later became a war correspondent
4kpw6 TIL that the USA started a project 1938 that hired 450 unemployed clerks to write 28 volumes of higher mathematical functions.