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TIL Shuttlecocks used in professional badminton are made of feathers from the left wing of a goose. Feathers from the right wing make them spin the wrong way.

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kJ61e Today I learned that human bites have the potential to become extremely dangerous, due to all of the bacteria in our mouths and the strength of our jaws
1X9D TIL all diamonds will eventually decay into graphite
KYdR TIL Benjamin Franklin intentionally faked the death of rival publisher, Titan Leeds. (Franklin maintained that the still-alive Leeds was an impostor.)
DplV TIL that The ruins of the ancient city of Petra lay hidden until 1812, when a Swiss explorer stumbled upon them in modern-day Jordan. The man walked through the dark gorge for 1.2 kilometers. Suddenly, he laid eyes on a magnificent scene.
Z9Ko TIL that a Mapuche warrior had both his hand cut off by Spanish invaders, strapped swords to his arms, and continued leading his people in revolt.