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TIL that during American Civil War some soldier’s wounds glowed blue; soldier’s whose wounds glowed had better chance of surviving, and so the glow was called “Angel’s Glow”. Now it is known that the luminescence is due to bacteria that produce antibiotics and that live in nematodes

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VBKMB TIL Raymond Loewy, famed for his design of the Coca-Cola bottle among other work, helped design Skylab. He did so with a few principles in mind: eight hours of daily solitude, meals facing each other, and smooth partitions
78e0X TIL that Groundhog Day America was brought to America by German settlers. In the original tradition, a hedgehog was used to predict the weather but was switched to the groundhog which was much easier to come across in the Keystone State.
KZvE TIL Chris Farley was the original choice to voice the title character of the DreamWorks animated film Shrek, but died just before recording was finished. It’s said approximately 80-90% of his lines were recorded, but none of these recordings have surfaced.
b98bQ TIL that when people are blind from birth they don’t see black. They don’t see darkness, they just don’t see anything at all. They see less than darkness
yQENp TIL an armed robbery attempt ended in a group hug after the victims offered the robber cheese and wine - an example of non-complementary behavior, where an unexpected warm response to a negative demand "flipped the script" of the situation.