• superkret@feddit.orgOP
    link
    fedilink
    English
    arrow-up
    25
    ·
    edit-2
    25 days ago

    SI units are fun!

    My car needs 7 liters of gas per 100 km.
    7 liters / 100 km =
    7 dm³ / 100 km =
    0.007m³ / 100,000 m =
    0.000007 m² =
    0.07 mm²

    The question what this area represents is left as an exercise to the reader.

    Bonus trivia: The newest SI prefixes are only 2 years old:

    • quetta (Q) = 1030
    • ronna (R) = 1027
    • ronto (r) = 10-27
    • quecto (q) = 10-30
    • MisterFrog@lemmy.world
      link
      fedilink
      English
      arrow-up
      3
      ·
      20 days ago

      I know this is a joke, but could help myself: you can’t always just cancel units like this.

      It’s more like 0.007 m3(fuel burned) / 100,000 m(travelled)

      Can’t really cancel those.