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TIL Goldstone Books in South Wales once received so many used copies of 50 Shades of Grey that they had to ask people to stop handing them in. Employees even created a fort out of their hundreds of surplus copies.

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QNje TIL the hypnic jerk, or the twitching of the limbs that accompanies a falling sensation while sleeping, is caused by the brain’s misinterpretation of relaxed muscles as falling. The brain then sends signals to arm and leg muscles in an attempt to regain balance.
9YOv6 TIL of Sir Douglas Mawson, an Australian who led an expedition to the south pole in 1912. He went on a 3-man sledding team. On the way back to the main base, his two teammates died and most of the equipment was lost. He continued the final 100 miles back alone and survived falling down a crevasse.
NXE7Q TIL that NASA's Parker Solar Probe is the fastest object ever built. It is estimated to reach a top speed of 191 km/s (430,000 mph) in 2025, 0.064% the speed of light.
RxK1 TIL ‘Cheez-Its’ are actually not squares, they are considered rectangles. Two of the four sides are 2 millimeters longer than the others.
v1QQK TIL Apple Banned Taiwanese Flag Emoji From iPhones in Hong Kong