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TIL it is a myth that bats use their echolocation to deftly maneuver around one another. High speed cameras show that bats crash into each other all the time.

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QJVZd TIL the B-side of the cassette release of "In God We Trust, Inc" by Dead Kennedys is left blank. The B-side label states "Home taping is killing record industry profits! We left this side blank so you can help.".
xVWE5 TIL that introduction of iodized salt in 1920s increased national IQ average by 3.5 points in a decade and in certain states which had high levels of iodine deficiency previously, saw avg IQ increase as much as 15 points within the first decade.
oR9xo TIL of Tomtex, a fake leather made from chitosan, a bio-polymer extracted from waste seafood shells. Unlike other leather alternatives TomTex is not mixed with PVC or polyurethane
90MQ TIL that Pretty Boy Floyd, a bank robber in the 1920’s, would destroy mortgage documents during robberies, which freed many citizens of their debts.
n107 TIL that amid widespread chocolate shortage during WW2, Pietro Ferrero sought to create a chocolate treat that would be affordable for struggling families. The result was “supercrema,” a spread made with just a little bit of chocolate and a lot of the hazelnuts. Now we call it Nutella.