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TIL itacolumite is a rare, naturally-occurring bendable rock. Scientists are not 100% sure why the rock can bend, but postulate that it may have something to do with it being made of quartz which forms crystalline structures capable of leaving substantial air gaps in the rock.

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GYBbN TIL Josh Brolin attempted 'perineum sunning', an alternative therapy that involves exposing the bare anus and perineum to sunlight. “I don’t know who the f–k thought of this stupid s–t but f–k you nonetheless. Seriously" is what he had to say about the experience.
6E75W TIL about HPP (High Places Phenomenon), the experience of a sudden urge to jump when in a high place. Although it has been speculated to be associated with suicidal ideation, data has proposed that it stems from a misinterpreted safety signal (i.e., survival instinct).
E1yaw TIL that during the chrysalis faze of metamorphosis, a caterpillar digests itself by releasing enzymes that break down all of its tissues. Specialized groups of cells survive the process and use the protein-rich soup to build the adult body parts of the butterfly.
DmQY TIL: A Man pretending to work at Goldman Sachs tweeted outlandish statements supposedly spoken by bankers criticizing the poor and bragging about their wealth within Elevators, Goldman believed so much that these tweets were real an internal inquiry was conducted and speaking in elevators banned.
Z8LaR TIL that Ed Camull, co-founder of Pixar and former president of Walt Disney Animation Studios, had Aphantasia - a mental condition which meant he could not voluntarily visualize mental imagery. He had no visual imagination.