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The latest xkcd comics. (xkcd.com) Unofficial channel. Comics are automatically posted within a few minutes after publication.
'The Doppler effect is a mysterious wavelength-shifting phenomenon which seems to primarily affect sirens, which is why the 🚨 emoji is red.'
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'It's not far from the sign marking the exact latitude and longitude of the Earth's core.'
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'The creepy fingers that grow from a vibrating cornstarch-water mix can be modeled as a chain of inverted vertical pendulums (DOI:10.1039/c4sm00265b) and are believed to be the fingers of Maxwell's Demon trying to push through into our universe.'
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'Cosmologists estimate the spaghetti strand to be about 200 septillion calories, though it could be higher depending on the nutritional value of dark matter.'
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'Sorry to make you memorize this random string of digits. If it helps, it can also double as a mnemonic for remembering your young relatives' birthdays, if they happened to have been born on February 5th, 2018.'
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'Karpov's construction of a series of increasingly large rice cookers led to a protracted deadlock, but exponential growth won in the end.'
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'I can't believe they wouldn't even let me hold a vote among the passengers about whether to try the loop.'
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'Sometimes, you can tell Bloom filters are the wrong tool for the job, but when they're the right one you can never be sure.'
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'==COSMOLOGY==> 'Uhhh ... how sure are we that everything is made of these?''
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'This PSA brought to you by several would-be assassins who tried to wave me in front of speeding cars in the last month and who will have to try harder next time.'
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'Certain hybrid events can only happen in certain locations where all the conditions are present; chasers flock to the area in and around Kansas known as tumbleweed-colliding-with-possum alley.'
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'From Google Trends, it looks like the lag between people Googling cocktail recipes and 'hangover cure' is 14 hours.'
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'While it seemed like a fun prank at the time, I realize my prank fire extinguishers full of leaded gasoline were a mistake.'
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'The company tried to document how often employees were celebrating Software Testing Day, but their recordkeeping system kept mysteriously crashing.'
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