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TIL squirrels don’t take “fall damage” because their terminal velocity is too low for it to do any damage on impact, it’s the same with ants.

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aawy TIL of the Atmos clock, a mechanical torsion pendulum clock which gets the energy it needs to run from temperature and air pressure changes in the environment, and can run for many years without human intervention. A temperature variation of only 1 degree is sufficient for two days operation.
9YarQ TIL Medical Errors are the third leading cause of death in the United States after heart disease and cancer !
5YJ6D TIL Neil Armstrong's heart rate was 150 when he landed on the Moon. For a fit astronaut, not moving, the only explanation is he was terrified. But he set the Eagle down with less than 30 seconds of fuel: Truly the Right Stuff.
N7A1Q TIL an 9 foot alligator clamped onto the leg of 10-yr-old Florida girl Juliana Ossa. She thought of a plan she'd learned in "Gatorland" where she saw a guy wrestle a gator with its mouth taped. The situation was reversed, so Juliana stuck her fingers up the gator's nose, and it released her leg.
DQgnp TIL that the new car smell we all know and love is made up of multiple chemicals and can cause serious health hazards