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TIL a brain damaged rat was given a robotic cerebellum. The cyborg rodent then achieved normal body functions.

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d8d59 TIL the saying "Perfect is the enemy of good" means to go with what works well rather than trying for perfection. Sir Watson-Watt who developed radar in WW2 Britain had a “cult of the imperfect” saying "Give them the third best to go with; the second best comes too late, the best never comes.”
NArE TIL Bill Nye went from an engineering position at Boeing to a job as a comedian before ultimately becoming the Science Guy
YplGZ TIL That "Gravestone Conservator" is a job. They restore gravestones as well as preserve and protect burial places in general. They work to preserve burial places as cultural heritage sites which would otherwise be lost due to time or wilful destruction.
LQGwQ TIL that Africa is the only continent with fossil evidence of human beings (Homo sapiens) and their ancestors through each key stage of their evolution.
ZV4a TIL A Man Named John Banvard Once Made a Painting of the Mississippi River. By the time it was finished, the painting was three miles long. Since John died, the painting has been cut up and was hung in movie theaters. There is no evidence that any exists to this day.