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TIL Xerox and Cannon created the Machine Identification Code. A digital watermark which certain color laser printers and copiers leave on every single printed page, allowing identification of the device with which a document was printed and giving clues to the originator

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yVWVp TIL that the Mr. Mister song ‘Broken Wings’ has the same lyric ‘take these broken wings, and learn to fly’ as the Beatles song ‘Black Bird’. Apparently both groups were inspired by the same poet-philosopher Kahlil Gibran
eydE TIL Aerosmith had once written the music for a song, but couldn’t come up with any words. They finally got their inspiration when they went to see the movie Young Frankenstein. The song, Walk This Way, became one of the band’s biggest hits.
9Y6ar TIL Broadway vs Off-Broadway is based on the number of seats, with Broadway having over 500, Off-Broadway between 100-499, and Off-Off-Broadway having less than 99
5V8lD TIL that en route to Nagasaki to deliver Fat Man, on August 9, 1945, St Elmo's Fire appeared around the B-29 aircraft...the Bockscar experienced an uncanny luminous blue plasma form around the spinning propellers, "as though we were riding the whirlwind through space on a chariot of blue fire."
j6KYn TIL it is possible in certain cases of severe malnutrition for normally dark hair to turn red or blonde