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TIL Wuppertal Germany is home to the world’s oldest operating monorail system, established in 1901. It is still in daily use and has only suffered one fatal accident in over 110 years of service.

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XE8Q8 TIL the modern air conditioner was invented by Willis Carrier not to cool people, but to reduce damaging humidity in a print shop.
pYEwp TIL the CDC is recommending a "morning after" antibiotic pill to prevent STIs if taken within three days after unprotected sex. The pill significantly reduces the risk of infections like chlamydia, syphilis, and gonorrhea.
W7NDo TIL that the Bengal famine of 1770 took place between 1769 and 1773 during which the British were ruling some territories in India. In the Bengal famine, around 10 million people died.
VMEBD TIL a skinny person can actually eat more food than an obese person. While it runs counter to logic, obese people have more fat in their mid section and around their organs. A skinny person lacks this which allows their stomachs to expand further. This is why many competitive eaters are so skinny.
8aWDX TIL Prince was 5’2″, or 157.5 cm tall and weighed 112 pounds, he often wore heels to combat his small size. His grand piano was even modified by shortening the legs so he could reach the pedals while sitting down to play.