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TIL tasers shoot confetti with tiny serial numbers printed on it so that it can be linked to the person who fired it.

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R5Dv4 TIL all the world’s bacteria stacked on top of each other would stretch for 10 billion light-years. Together, Earth's 0.001mm-long microbes could wrap around the Milky Way over 20,000 times.
xVRwg TIL Parkinson’s disease may originate in the gut
xY9o TIL: That diamonds are one of the most common gemstones on the planet and their high price comes from a decades old manipulative marketing campaign.
dD5mE TIL of Sun Yaoting, the last eunuch of China who had his penis and testicles removed at the age of eight. Less than two years before China abolish the monarchy.
Jym4 TIL a patient with Dissociative Identity Disorder who was blind for 15 years began regaining vision after psychotherapy. When a personality with vision was dominant the electrical activity in the visual cortex was normal. A blind personality would shut the visual cortex of their brain off.