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TIL that time dilation is the reason we can use muon tomography to scan the Great Pyramids. From their point of view, muons only live a very short time. But they go so fast that from our point of view, they live long enough to penetrate the atmosphere and large objects.

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9Mn6 TIL The success of Venice during the Middle Ages has been credited to its system of government which selected politicians by lottery
ADK4g TIL Cats do not need to blink on a regular basis to keep their eyes lubricated. Unblinking eyes are probably an advantage when hunting. Cats will, however, squint their eyes, usually as a form of communication expressing affection and ease around another cat or human.
p8Mlb TIL musician Gram Parsons wanted his body cremated and scattered at Joshua Tree, but his family arranged for him to be buried in Louisiana for financial reasons. His friends, drunk and assisted by an unwitting police officer, stole his body from the airport and burned the casket themselves.
Oo8vY TIL Brad Pitt became persona non grata (a foreign person whose entering or remaining in a particular country is prohibited by that country's government), in the People's Republic of China after he appeared in the 1997 film Seven Years in Tibet.
b6Z1E TIL our brains paralyze our muscles while we’re dreaming so we don’t physically act out what we’re doing in our dreams. Fascinating.