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TIL a US Navy battleship was shut down for 3 hours because its computer divided by zero, causing the whole network to crash.

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Z8bdo TIL that IKEA, the Swedish furniture chain, is actually pronounced "ee-kay-uh", not "eye-kee-uh"
P1pVV TIL The first product scanned with a bar code scanner was a packet of Wrigley's chewing gum. it happened on Marsh Supermarket, Ohio.
j6poa TIL of Capgras Delusion - A psychological disorder in which a person believes that a friend, family member, or pet has been replaced by an identical imposter.
lovZ5 TIL there is a subset of people that can function perfectly fine with less than 5 hours of sleep. They are early birds, night owls and short sleepers at the same time and do not need the assistance of coffee or mid-day naps to function. They are the Sleepless Elite.
e0QK5 TIL that in 1940, nearly 19 million people lived in the USA colonies, the great bulk of them in the Philippines. That meant slightly more than one in eight of the people in the USA lived outside of the states. For perspective, only about one in 12 of the people in the USA was African American