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TIL where astronauts sleep on a space station has to be extremely well ventilated with a constant flow of air over them. Warm air does not rise in space so astronauts in badly-ventilated sections end up surrounded by a bubble of their own exhaled carbon dioxide, the result being oxygen starvation.
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whatilearned
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TIL: Beauty Parlour Stroke Syndrome is an extremely rare phenomenon that describes a stroke caused by having your hair washed over a basin at a salon. It is thought to be the result of reduced blood flow to the brain caused by sustained distortion of the neck during the washing process.
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whatilearned
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TIL That researchers have found 23 words that are considered the oldest known words in the world, dating back 15,000 years. They are: thou, I, not, that, we, to give, who, this, what, man/male, ye, old, mother, to hear, hand, fire, to pull, black, to flow, bark, ashes, to spit, and worm.
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whatilearned
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TIL The US is the global epicenter of tornado formation with an average of 1,200 each year. It’s the result of a unique geography that allows hot, dry air from the Southwest to flow atop moist, warm, unstable surface air east of the Rockies, with cold air at the jet-stream level overtopping it all
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whatilearned
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