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TIL that in 2013, NASA’s Mars Curiosity rover hummed Happy Birthday to itself by vibrating its sample-analysis unit to obtain the musical tune, but did so only on its first “birthday”.

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586k TIL: North Korea have deposited 500 cannabis strains in the Doomsday Seed Bank while the U.S. has sent none
LA19 TIL Albert Einstein had a silk bathrobe that he’d “accidentally” let open in front of certain women – He’d make a move based on their reaction.
m10ME TIL about Juliane Koepcke. At age 17 she spent 11 days alone in the Amazon rainforest after her plane broke apart & scattered the passengers. She knew how to give first aid & survive in the wilderness because she'd been homeschooled in a rural area, so unlike the others she survived her journey out.
4keeX TIL that, the first Lockheed U-2 spy plane pilots, during extended flights, wore suits equipped with an indwelling urinary catheter. This tube, inserted through the penis into the bladder, siphoned urine into a bag. This suite and solution was unpopular among pilots
8L5X TIL ‘Blue Balls’ are not simply an imagined pressure, but are in fact a physical build up of fluid resulting from unsatisfied sexual arousal.