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TIL that Las Vegas's MGM Grand Hotel & Casino had its worst financial week ever when it hosted a physicist convention

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via reddit.com

kJ1Q1 TIL when NBA player Bones Hyland was a teen, he jumped out a window to escape a house fire that killed members of his family.
oRnbL TIL that two surfaces can be bonded purely by intermolecular forces if both surfaces are smooth and flat enough. This is called optical contact bonding.
oBJd8 TIL It took Chinese authorities 7 minutes to locate and apprehend a BBC reporter using a network of CCTV camera and facial recognition technology
erQE TIL the Vietnamese once repelled a Mongol naval invasion of ~400 ships by filling a river with iron-tipped spikes and then luring the ships in at high tide. The fleet was trapped at low tide and overwhelmed by a Vietnamese ambush.
Zpwdo TIL the Eiffel Tower has been painted nearly twenty times. It’s been shades of red, yellow, brown, and grey, and has never been painted black.