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TIL that there is a chemical that is so unstable, it explodes on contact with sharp edges

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aYyA TIL after an American Idol contestant was rejected by the judges, he told them to “Be careful” (a common way of saying “Farewell” in Louisville ). The judges bristled immediately and took the comment as a threat.
Ln69 TIL that drug companies often use two narrators in their commercials. A stern and confident voice is used to describe the benefits of the drug, while a calm and soothing voice is used to describe the harmful side effects
xXm0 TIL Hand crank vibrators were popular in the 1900s
OoQm7 TIL Between 1900 and 2000, the increase in world population was three times greater than during the entire previous history of humanity—an increase from 1.5 to 6.1 billion in just 100 years.
ANl1a TIL about Pharaoh Akhenaten who attempted to upend centuries of tradition by forcing the people of Egypt to abandon their pantheon of gods in favor of worshipping a single deity, Aten. After his death, monuments were dismantled, his statues destroyed, and his name excluded from lists of rulers.