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TIL the reason that some semi-truck trailer doors have quilted patterns on their rear doors is to reduce glare on the vehicles following them.

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W7eJX TIL about zeptoseconds, the smallest unit of time.
D1dXj TIL about Alexander Bogdanov, a Russian physician who experimented with blood transfusion to gain eternal youth. He died after injecting himself with blood from a student infected with malaria and tuberculosis, who also may have been the wrong blood type.
W7vkY TIL the character of Ernest P. Worrell was inspired by one of director John Cherry's dad's co-workers, a confident man who thought he knew everything, but actually knew nothing.
KOeJw TIL: The story that Victorian-era doctors used vibrators to treat female "hysteria" is an historical myth
x6y80 TIL that Mount Everest was named after Sir George Everest, even though he had no connection to the mountain. He objected to the naming because the word 'Everest' could not be easily written in Hindi or pronounced by the local people.