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TIL Some lungfish need air to respire and their gills don't provide enough oxygen

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7VK7 TIL that the reason spicy food gets spicier after freezing and reheating is because capsaicin (spice chemical) is stored in fats, which don’t evaporate during reheating like the water in a food so there is a higher percentage of the spice than in the food before, causing it to be spicier
lAJ5 TIL that Tupac was first artist to have an album at number one on the Billboard 200 while in prison
b6MrN TIL Nolan Bushnell played Spacewar! in a computer lab in the 1960s. The only computers capable of running the game at the time cost more than $100,000. Bushnell decided he didn't need a computer and used affordable custom hardware to create "Computer Space" housed in a futuristic cabinet
YkNZ TIL the UK’s military satellite family is called Skynet.
nbV9 TIL of “Mit brennender Sorge,” a papal letter secretly smuggled into Germany and read from every Catholic pulpit on Palm Sunday, 1937. It condemned the Reich Government and implied that everyone in Heaven was laughing at Hitler, a “prophet of nothingness”.