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TIL that any object moving through water, no matter the speed or shape, creates a "Kelvin Wake" that is angled at precisely 19.47 degrees with respect to the direction of motion.

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ooa7 TIL:University of Illinois hosts a phone number you can call 24/7 for a few weeks in December and a live person will sing you Christmas carols. They have been doing this for 55 years.
xV7Z1 TIL only 400 out of the 7000 diseases classified as “rare” have an effective treatment. This fact is recognized during Rare Disease Day, which is held every year on the last day of February. This day also holds an extra special meaning on February 29 – the rarest day of the year.
A15d TIL Most of the money George Clooney makes off his Nespresso commercials, he spends on a satellite that surveils over the border of North and South Sudan to keep an eye on criminal and dictator Omar al-Bashir to track his vicious army in an attempt to warn civilians before attacks occur
LkXeQ TIL that there are species of mushrooms that feed off of gamma radiation, and some are blooming in Chernobyl, “eating” the radiation.
gnj4 TIL Cranky Kong, Donkey Kong’s cranky old grandfather, was actually the original antagonist from the 1981 arcade game