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677

TIL that there are trees in Hawaii with natural rainbow-colored bark.

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nWKLG TIL that teeth are not bones. Bones are living tissue, but teeth are primarily mineral, with the pulp being the sole living part. This is why bones can regenerate, but teeth can not
nako TIL that a ‘micromort’ is a unit given to the amount of times a person will die out of a million tries (for example, going skydiving is 7 micromorts, meaning that there is a 7/1,000,000 chance that a person will die after a trip)
yVBoa TIL Texas did not have safety regulations on natural gas until after a school blew up and hundreds of children were killed. No one was held accountable, but they passed strict regulations afterwards. It was so bad that even Hitler sent a letter of condolence.
wKlW TIL John Aaron, a NASA flight controller, not only saved Apollo 12 after it was struck by lightning, but also saved the Apollo 13 crew by developing a unique power up sequence to allow a safe reentry.
Eo17 TIL Stone Age Europeans are thought to have created brief “gifs”, by drawing two versions of an image, one over the other, on cave walls. The flickering of a torch light would “animate” the image