› added 5 months ago

22

TIL about the John Thomas sign, a radiologist in-joke about the position of a penis during an X-ray. If it points towards an injury or irregularity, it is considered a “positive” John Thomas sign.

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via reddit.com

VBY1Z TIL that Acacia trees in Africa communicate with each other. They emit gasses to alert other trees to produce the toxin tannin, which protects them from hungry animals.
P1n9e TIL the oldest known work of art is a seashell believed to have been carved by a Homo erectus between 540,000 and 430,000 years ago. Its extreme age suggests higher human traits evolved earlier than previously thought.
QrKa TIL 5 of the 6 longest bridges in the United States are in Louisiana.
neaBb TIL Silent Night (Stille Nacht) was created in 1818 on Christmas Eve, making the song 200 years old tomorrow.
vPMoj TIL that at Jim Henson’s memorial service on July 2 1990, Big Bird, puppeteer Carroll Spinney and Jim Henson‘s friend of 30 years, sang ‘it’s not easy being green’ (Kermit’s song) as a tribute to the late creator of the Muppets.