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TIL The "glass" on your iPhone lens cover is not actually glass. It's pure sapphire which is crystallised aluminium oxide. Which is much more resistant to scratches than glass.

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Z85Wv TIL the cap of the Washington Monument contains 100 ounces of pure aluminum. Aluminum was one of the rarest and most valuable metals in the world – more valuable than silver – when the building was constructed in the 1850s.
07D1 TIL That a New York man with a 13.5 inch penis has had a lifetime of complete strangers asking if they could see it, and when he was 10, had his first sexual encounter with an 18 year old girl.
mD9p TIL: A Real-Life version of the House From The Simpsons was built Outside Vegas to be a prize in a contest.
DXeV TIL in Star Wars, the Sith were originally red-skinned humanoids that lived on a planet the dark-side using Jedi were exiled to. Using the Force, they became worshiped by the natives, and became a “Dark Lord of the Sith.”
7Q1x TIL Steve Jobs was hired to build the first prototype of “Breakout” for Atari. He enlisted the help of Steve Wozniak promising to give him half of the $750 pay. The pair stayed up four days straight to finish the game and were given a bonus because of this. Jobs kept the entire bonus for himself.