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TIL: Farting in space can be dangerous

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5Y4YP TIL of Otis Blackwell, a black songwriter who wrote some of Elvis Presley's songs including "Return to Sender" and "All Shook Up". The two never met.
Z8gdR TIL In languages, there is a reproducible correlation between the time required to pronounce numbers in a language and the memory span of its speakers. e.g Chinese number words are remarkably brief. Most of them can be uttered in less than (1/4)th of a second which results in their high memory.
x6KBD TIL that Apollo astronauts were 4-5x more likely than other astronauts to die from heart disease. One theory is that exiting the earth’s magnetosphere exposed them to cosmic rays, which has been shown to damage vascular tissue.
epd54 TIL that chinstrap penguins take more than 10,000 micro-naps a day, lasting an average of 4 seconds, for a total of more than 11 hours of daily sleep.
ANPDo TIL that, despite using the same alphabet (Hangul), North Korea and South Korea order the letters differently, with NK placing new letters at the end of the alphabet and SK grouping similar letters together