this post was submitted on 14 Mar 2024
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Science Memes

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[–] bstix@feddit.dk 111 points 2 years ago (3 children)

Easy. Take a wire that is exactly 1 meter long. Form a circle from the wire. The circumference of that circle is 1 meter.

[–] funkless_eck@sh.itjust.works 17 points 2 years ago (6 children)

"exactly"

uh huh. and how are you measuring that?

[–] lemmyman@lemmy.world 30 points 2 years ago (1 children)

Now the engineers and/or scientists are crying

[–] HopFlop@discuss.tchncs.de 19 points 2 years ago (1 children)

You don't need to, it's defined. (Lol). If you take a circle with a circumference of 1, then its circumference will be 1... I think I might have lost some braincells reading this.

[–] Kill_John_Lennon@lemmy.world 3 points 2 years ago (1 children)

He obviously meant to say how do you measure that it’s exactly 1m, even when still in a straight line. Exactly being the key word here.

[–] hesdeadjim@lemmy.world 2 points 2 years ago

But is the circumference of the outer circle or inner circle 1m? The wire has a nonzero width.

[–] Blue_Morpho@lemmy.world 13 points 2 years ago

I don't have to measure it. I stick under glass and define it as the standard which all other measurements are derived from.

[–] bstix@feddit.dk 11 points 2 years ago (1 children)

I will be measuring it in meters. One. There you go.

[–] MxM111@kbin.social 7 points 2 years ago

Ok, you got another source of water - physicists.

[–] ColeSloth@discuss.tchncs.de 2 points 2 years ago (1 children)
[–] RampantParanoia2365@lemmy.world 3 points 2 years ago

Exactly. Use a laser measure to cut a plank, then use that for reference!