this post was submitted on 28 May 2024
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[–] Vampire@hexbear.net 25 points 5 months ago (7 children)

How did the first guy manage to measure his height to within 100 microns?

[–] ProfessorOwl_PhD@hexbear.net 13 points 5 months ago

Really accurate tape measure.

[–] TankieTanuki@hexbear.net 11 points 5 months ago (1 children)
[–] Vampire@hexbear.net 6 points 5 months ago (1 children)
[–] PsychedSy@lemmy.dbzer0.com 2 points 5 months ago

If you can stand very still I could do it here at work.

[–] AlDente@sh.itjust.works 6 points 5 months ago (1 children)

To be fair, mm scale lines are a thing and its pretty standard to estimate the last digit between lines on a measurement.

[–] Liz@midwest.social 1 points 5 months ago (1 children)

You'd still need demarcation down to .1 mm. Your eyes are going to struggle to guess which line you're supposed to with, much less estimate last, unmarried 0.01 mm. 100 ΞΌm is about the width of a hair. 10 ΞΌ, well, good luck.

Regardless, such a precise measurement is meaningless when it comes to height, because there's a lot of uncontrolled variables that will change you height for any given measurement.

[–] PsychedSy@lemmy.dbzer0.com 1 points 5 months ago

Instrument uncertainty will be a very small part of total uncertainty there for sure.

[–] hsdkfr734r@feddit.nl 4 points 5 months ago

He used an inch tape measure and converted the height to cm I guess.

[–] Damage@feddit.it 2 points 5 months ago