› added 7 months ago

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TIL about Li-Fi, a technology introduced in 2011 that uses visible light, ultraviolet light, and infrared light to deliver information in wireless networks similar to radio waves in Wi-Fi.

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1668O TIL that Icebreaker ships don't really crack ice with a sharp bow, rather they break it by first riding the bow up on top of the ice, and then crushing it to pieces underneath the ship's immense weight
1BAd TIL there is a secret room inside Mt. Rushmore that contains porcelain enamel panels with text from the Declaration of Independence, the Constitution, and the Bill of Rights sealed in a teakwood box, placed in a titanium vault, and sealed shut under the weight of a 1,200 pound granite capstone.
pQdp TIL that in 2013, someone in Chicago placed a $600 million trade 2 milliseconds after the Fed publicly announced they wouldn’t slow bond purchases. The markets skyrocketed and the trader made lots of money. There was one problem though. It would have taken 7 milliseconds for light to get to Chicago.
v1WR4 TIL about the 1937 Fox Studios film fire responsible for approximately 75% of all silent movie reels being destroyed.
b6YeE TIL A Utah man walked into a bank and handed the teller a note reading "Please pardon me for doing this but this is a robbery. Please give me $1. Thank you." After receiving the $1 and being asked to leave, he sat in the lobby and awaited police to arrive.