› added 1 year ago

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TIL that chromium makes steel stainless by reacting with oxygen and creating a layer of chromium oxide (chrome) that prevents oxygen from further oxidizing (rusting) the metal. All thanks to a random knife maker on YouTube.

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via reddit.com

J1nMv TIL that baby squirrels are called kittens
bODa TIL there exists a network of USB drives embedded in cement all over the world designed to be dead drops for files.
lodyr TIL that in 2007 a group of otters at the Bronx Zoo forcefully drowned a langur in full view of visitors and other langurs. The langurs had been tormenting the otters, so they united and exacted revenge by drowning the monkey and left its dead body afloat for the other langurs to see.
0wE75 TIL After American fashion designer Rick Owens' launch of the “Geobaskets,” Nike claimed that its silhouette was similar to one of their previous silhouettes: Dunks. As a result, Nike took off the sneakers from the market, leaving only a finite number of pairs still left.
XEllr TIL crows can remember faces and hold grudges for at least fifteen years