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TIL about Dupuytren’s Disease, which causes nodules and chords to form in the palm of you hand, and prevents you from fully opening/relaxing your fingers after a while (which is called Dupuytren’s Contracture). Newer treatments involve injecting an enzyme and audibly snapping the cord.

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ZpaQD TIL - The 'Blood Falls' in Antarctica is a bright red waterfall that flows from the Taylor Glacier into Lake Bonney. Despite its eerie appearance, the red color is actually caused by iron oxide, which gives the water its rust-like hue. The water is also extremely salty, preventing it being frozen
4DOJ TIL Amazon created an entirely new font called “Bookerly” specifically designed to be easy to read on Kindles and other digital screens.
5YMQ8 TIL The first computers in the White House were installed by Jimmy Carter's administration. In 1978, the West Wing was equipped with a Hewlett Packard 3000. By the end of Carter's term, the White House had purchased its first laser printer
m1ppv TIL the weather patterns on Neptune are driven by the strongest sustained winds of any planet in the Solar System, as high as 2,100 km/h (1,300 mph).
0wELv TIL Turkey vultures use defensive vomit to get rid of any disturbing animal. They can propel their vomit up to 10 feet.