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TIL: In 2011, a pod of sperm whales adopted a bottlenose dolphin with a deformed spine.

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R5nGl TIL that the second fastest manmade object was a 2,000 lb steel plate cap covering a borehole for a nuclear blast. It's estimated that it reached speeds above 150,000 mph, almost 200 times the speed of sound. It most likely vaporized due to friction with the atmosphere before it could reach space.
4XNV6 TIL The band Phoenix once played a secret concert at a high school in Austin. To attend, the students needed to have perfect attendance.
0weWp TIL nearly all color laser printers code hidden metadata and tracking information into their printouts using hidden yellow dots. Originally designed to prevent counterfeit currency.
Yj9r TIL Bette Nesmith was a typist in the 1950s. She invented liquid paper because she was fed up with having to scrap a whole page due to a typo. Later she sold her company for over 40 millions.
xVxE5 TIL that the oldest Jewish state in the world isn't Israel: it's Birobidzhan, the Jewish Autonomous Oblast in Russia, founded in 1934.