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submitted 9 months ago* (last edited 9 months ago) by p1mrx@sh.itjust.works to c/xkcd@lemmy.world

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Subway refuses to answer my questions about whether it's an International Footlong or a US Survey Footlong. A milligram of sandwich is at stake!

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[–] p1mrx@sh.itjust.works 70 points 9 months ago

Shout out to Carl Edvard Johansson for fixing this problem by defining the industrial inch at exactly 25.4 mm.