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TIL The sailing stones that were inexplicably pushing themselves around and leaving trails in the desert have had their movement explained. A perfect combination of weather conditions cause huge yet thin ice sheets to push them around.

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Vxk8 TIL a man who was a pioneer in sleep research died when he slammed his car into a tree north of San Diego in 1998. An autopsy suggested he may have fallen asleep at the wheel
D19QJ TIL DNA tests of 39 of Adolf Hitler's living relatives suggest he had both Jewish and African ancestors.
dDwr TIL it is believed that the invention of the wheel was so challenging that it probably happened only once, in one place. Before its invention in 3500 B.C., humans were already casting metal alloys, constructing canals and sailboats, and even designing complex musical instruments such as harps.
N78oQ TIL That men and women have buttons on different sides of their shirts because men had to reach for weapons and women had handmaids do their shirts up for them.
xyDo TIL that in 2013, Google went down for 5 minutes and in that time, the global internet traffic dropped by 40%