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TIL the man invented revolving doors in the US did so because he was tired of being chivalrous and holding doors for women

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wLrA7 Today i learned that the first 3d printer was created 40 years ago in 1980
wda6 TIL there is a Mongolian form of singing that creates a harmonic with the human voice. It allows one person to sing more than one tone simultaneously.
LmQp TIL of the Cathedral Effect. When ceiling height is conspicuously low or high it can promote different kinds of thinking, with higher ceilings promote abstract thinking and creativity and lower ceilings promoting concrete and detail-oriented thinking.
NXnW6 TIL that legless lizards, while similar to snakes, do not have belly scales, and therefore have great difficulty crossing flat surfaces such as roads.
Z8PBY TIL of a child that woke up from a coma and slowly turned into a vegetable state where he couldn't move. He was fully conscious the full time