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TIL: Australia uses giant stop signs projected on sheets of water to prevent tunnel crashes [x-post from r/cars]

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via reddit.com

oBgWL TIL 99% of internet data travels along a handful of undersea cables
yVdYv TIL Leonardo Da Vinci wrote backwards in 'mirror writing', writing right to left with all letters reversed. One theory on why he did this was because he was left-handed and didn't want to smudge the ink.
xVWgg TIL William Randolph Hearst went to great lengths to shut down the production of Citizen Kane, going so far as to purportedly arranging for a naked woman to jump into director Orson Welles' arms at his hotel room; a photographer would also be hiding to take a "salacious" photo of them.
XE4mr TIL that the facial expressions we make are hardwired into our brains rather than learned during life. After comparing the expressions of sighted and blind athletes at the 2004 Olympic games, researchers concluded that both competitors showed or controlled their expressions in exactly the same way.
XEmBj TIL that the most common street name in U.S. is Second. First is the third, Third is the second with Fifth being the sixth most common.