Science Memes

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suck it, math nerds (mander.xyz)

submitted 7 months ago by [email protected] to c/[email protected]

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[–] [email protected] 108 points 7 months 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.

[–] [email protected] 17 points 7 months ago (6 children)

"exactly"

uh huh. and how are you measuring that?

[–] [email protected] 30 points 7 months ago (1 children)

Now the engineers and/or scientists are crying

[–] [email protected] 4 points 7 months ago

Scientists maybe, engineering is all about calling things close enough.

[–] [email protected] 18 points 7 months 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.

[–] [email protected] 3 points 7 months 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.

[–] [email protected] 2 points 7 months ago

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

[–] [email protected] 13 points 7 months 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.

[–] [email protected] 11 points 7 months ago (1 children)

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

[–] [email protected] 7 points 7 months ago

Ok, you got another source of water - physicists.

[–] [email protected] 2 points 7 months ago (1 children)

Plancks

[–] [email protected] 3 points 7 months ago

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

[–] [email protected] 1 points 7 months ago

Laser Measure.