this post was submitted on 25 Sep 2025
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cross-posted from: https://piefed.ca/post/241259

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[–] Schlemmy@lemmy.ml 3 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

Wait. Shouldn't it be 1g = 1 ml = 1x1x1 mm cube of water?

[–] n3m37h@sh.itjust.works 1 points 3 weeks ago* (last edited 3 weeks ago) (2 children)

1g = 1ml = a 1x1x1cm cube if pure h2o

g = weight
mL = volume (3d)
cm = distance (2d)

[–] Zerush@lemmy.ml 2 points 3 weeks ago (1 children)

g isn't the unit of weight, it's the unit of mass, the unit of weight is N(ewton) and depends on the gravity, only the mass of an object is always the same, not the weight. Your weight on sea level is higher than on the Mount Everest. This is one of the biggest fail in the imperial system, there isn't a difference of weight and mass and the cause of even deathly accidents.

[–] n3m37h@sh.itjust.works 2 points 3 weeks ago
[–] Schlemmy@lemmy.ml 1 points 3 weeks ago (1 children)

Woosh. Yeah, it keeps feeling counterintuïtive to go from mili to centi

[–] n3m37h@sh.itjust.works 2 points 3 weeks ago (1 children)

Just move the decimal place, how hard is that?

[–] Schlemmy@lemmy.ml 1 points 3 weeks ago (1 children)

I know.. But from square to cubic

[–] n3m37h@sh.itjust.works 1 points 3 weeks ago (1 children)

How a 1x1x1cm cube = 1ml of h2o?

[–] Schlemmy@lemmy.ml 1 points 3 weeks ago

Yeah. I'm over 40 years into the metric system and I keep making this mistake intuitively. I don't make it when doing calculations bit just when quick guessing.