• @Liome
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    1 month ago

    Some countries use commas as a decimal point, but even then, 9.7?
    1 mile is 1.6 km with some change, so 20 miles would be around 32 km. If you’d plug the numbers in reverse, that would still give you 12.42.
    I can’t even imagine how they got that number.

    EDIT: Ooooh, they probably asked chatgpt to calculate that, or even to write the whole article.

    • @litchralee@sh.itjust.works
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      61 month ago

      As an aside, metric conversions of US customary speed and distances are convenient in that they almost perfectly align to powers of two for typical land speeds.

      5 mph ~ 8 kph

      10 mph ~ 16 kph

      20 mph ~ 32 kph

      40 mph ~ 64 kph

      80 mph ~ 128 kph

      The other common speed limits in the USA are thus bitwise compositions, which Computer Science folks might appreciate:

      15 mph ~ 24 kph (16+8)

      25 mph ~ 40 kph (32+8)

      35 mph ~ 56 kph (32+16+8)

      45 mph ~ 72 kph (64+8)

      50 mph ~ 80 kph (64+16)

      55 mph ~ 88 kph (64+16+8)

      65 mph ~ 104 kph (64+32+8)

      Had the 1980s US metrication effort succeeded, we could have seen those same limits rounded off to: 25, 40, 55, 70, 80, 90, and 100 or 110 kph.

      For reference, common speeds around the world are 15, 20, 30, 50, 80, 90, and 100 kph

      think metric sign from Canada Source: https://commons.m.wikimedia.org/wiki/File:CA-BC_road_sign_I-106-100.svg