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Today I learned that the 1883 eruption of Krakatoa was so loud it ruptured eardrums of people 40 miles away, travelled around the world four times, and was clearly heard 3,000 miles away.

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via reddit.com

0ww8y TIL America’s “Time Lord” is Dr. Judah Levine, the guy who sets the time upon which all of our devices are synced. He’s done this job since figuring out how to keep perfect time in 1969.
Q7Ya TIL in 2007, Facebook CEO Mark Zuckerberg commissioned David Choe to paint murals for their office. Although he thought the Facebook business model was “ridiculous and pointless,” Choe, an avid gambler, chose to receive stock in lieu of cash. His shares were valued at $200 million by Facebook’s IPO
Me8VA TIL about the Balearic Slingers. Little is know about these Light infantry mercenaries who fought against and then for the Roman Empire. Highly skilled and feared for their ability to strike down enemies up to 400 metres away, using ammunition made from stone, hardened clay or lead.
KOMAJ TIL BMW used prisoners from concentration camps like Dachau to build their cars and plane engines during the second world war. By the end of the war, almost 50% of the 50,000-person workforce at BMW consisted of prisoners from concentration camps.
v1MKR TIL that spiders do not sleep, instead they lower their metabolic rate during periods of inactivity to conserve energy. Nor do they blink.