› added 8 years ago

558

TIL that most American toilets don’t have the piss-flush option.

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oRx4A TIL of NYC's Clean Car Program: after years of unsuccessfully preventing tagging of parked subway cars, NYC changed its approach in 1984. Any cars with graffiti were cleaned within two hours or removed from service. The last graffiti covered car was removed from service on May 12, 1989.
gEb TIL Butterflies can remember things they learn as caterpillars
6E1em TIL that while experimenting on a jet pump project for NASA in his bathroom in 1982, Lonnie Johnson shot a stream of water across the room and thought, "This would make a great gun." The Super Soaker went on to make him some $73 million in royalties.⁠ ⁠
W7oWX TIL Astronomers have observed sunspots, or starspots, on other stars. A study tracked 56 starspots from a sample of more than 5,000 Sun-like stars
VB6PG TIL Song Dynasty created paper money to match its booming economy and also drove it off the cliff with hyperinflation