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TIL that Tanuka are seen as an animal of luck in Japan because of their hude ballsack (Just look at those pictures!)

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QJAGa TIL that the web security firm Cloudflare generates their encryption codes by taking videos of lava lamps' unpredictable movements and converting the randomness into a virtually unhackable code.
16aVd TIL that after Bon Jovi featured one in “Living On A Prayer,” Alice In Chains producer Dave Jerden demanded Jerry Cantrell use a Voice Box for “Man In The Box” which would go on to be the band’s first hit single.
WknYN TIL During WW II the US Army was aware that mail to soldiers was critical for morale, but overwhelmed with the volume and space it took to ship. So the resuscitated a British/Eastman Kodak method where every letter was photographed, and the film was shipped, then printed. It was called V Mail.
pYyo4 TIL forms of brain training, including music and chess, do little to improve cognitive abilities except for the specific trained skill and similar skills
yQPJV TIL that despite Denmark being occupied by Nazi Germany, over 99% of Denmark's Jewish community was spared from the Holocaust by being evacuated to Sweden in 1943