this post was submitted on 08 May 2026
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[–] daannii@lemmy.world 1 points 4 days ago* (last edited 4 days ago)

The ruler metric itself is also a factor. And the human looking at it.

If you were using cm , thats going to give you a different number than if you were using mm. Or nm.

Humans can't perceive nm by eye. And most can't distinguish more than 1/3 or 1/4 of a mm. At best.

So the tool and the human also limits accuracy. Meaning the tool has influenced the result. And The human has limited the measurement too.