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TIL the first cassette single was a mini-album C-30 C-60 C-90 by Bow Wow Wow released in 1980; half of the cassette was intentionally left blank to encourage people to use it to record (pirate) other music

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M7YXA TIL The sections of the Great Wall of China built during the Ming Dynasty (14th-17th century) were built using sticky rice mortar, which was made with a mix of sticky rice porridge and slaked lime. It has high adhesive strength, sturdiness, waterproofing capability, and prevents weeds from growing.
Z88oa TIL the velociraptors from Jurassic Park were actually suits worn by actors, and not an animatronic or CGI.
9jwr TIL that a cat once co-authored a physics paper. In 1975, a physicist had just finished writing a paper and was ready to publish but realized that he had used ‘we’ instead of 'I’ throughout, despite being the sole author. Not wanting to edit the paper, he listed his cat, Chester, as a co-author.
gD7X TIL that because babies listen to the languages spoken around them while still in the womb, they develop distinctive cries that reflect this when they’re born. Thus - babies cry with an accent, making it possible to distinguish a French baby from a German baby, based purely on the way they cry.
xYEB TIL: In 1972 a blizzard dropped as much as 26 feet of snow over Iran, killing 4000 people and covering an area the size of Wisconsin