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TIL that Warner Bros held two test screenings of its animated movie “Thumbelina”. The first time around, the audience reaction was flat. For the next test, they prefaced the exact same footage with the Walt Disney logo. The test scores soared

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dZWE TIL that the Challenger disaster delayed the Hubble Telescope launch for years, and the Hubble had to be stored in a clean room, powered-on, at the cost of $6,000,000/mo
R7MN8 TIL Hallucinatory 'voices' shaped by local culture. In the U.S.A., voices are harsh and threatening while those heard by schizophrenics in Africa and India tend to be more benign and playful.
WvJ8 TIL that Benjamin Franklin designed one of the first American coins, and instead of saying “In God We Trust,” it said “Mind Your Business.”
mxBQM TIL a computer virus discovered in 1991 was named the Michelangelo virus by researchers due to its time bomb feature activating the virus on March 6 of any year, a date that happened to coincide with the birth of Renaissance artist Michelangelo.
ZwXB TIL that during the Qin Dynasty in China, government officials would use fingerprint analysis at a crime scene to help identify potential perpetrators, as they knew that no two people have identical fingerprints