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TIL: Many athletes are technically considered obese based on their BMI because the BMI can't differentiate between fat and muscle

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via reddit.com

woV7J TIL that Abraham Lincoln nearly joined the Donner-Reed Party on their disastrous journey. It was only because of his wife's disapproval that he did not go with his good friend James Reed.
6Ywm TIL the iconic whistling in Otis Redding’s “(Sittin’ On) The Dock of the Bay” was originally a mistake. The song lyrics accidentally fell to the floor during the recording session and because studio time was running out, Redding improvised a whistled tune on the spot.
d6X8 TIL that in 1983, the Soviet Union shot down a commercial Korean flight (departing via Anchorage) when it drifted in Russian airspace. As a result, President Reagan declassified a secret U.S. military system to aid international flight tracking. Today this system is known as GPS.
78L1O TIL about the device ADE 651, which was described by its maker, ATSC, as being powered through the user's static electricity to detect explosives and drugs thanks to "programmed substance detection cards". It was bought in Iraq, Pakistan and the USA before the fraud was discovered
Y7ZgA TIL Hitler suffered from right-side cryptorchidism which means he really had one ball