this post was submitted on 30 Aug 2026
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[–] untorquer@quokk.au 13 points 6 days ago* (last edited 6 days ago) (2 children)

Assuming the time between submersion and observation is greater than zero, increasing temperatures above boiling would give increasing error.

Conversely the physicist may get other error at/near freezing.

And yet another option is the fluid being above the Ball's melting and/or boiling point, assuming changes in density with phase change.

[–] cloudshouter@lemmy.zip 12 points 6 days ago (1 children)

They just said the ball was red, they didn’t say why…

[–] untorquer@quokk.au 1 points 4 days ago

Responded to inline comment saying any temp would be fine

[–] tyler@programming.dev 2 points 5 days ago (1 children)

This is like saying “the physicist’s answer would have errors because they measured the ball and then stuck it in an oven. The volume of the ball in the oven is different than what they measured.”

[–] untorquer@quokk.au 0 points 4 days ago (1 children)

No it's more like the physicist tried to use boiling water to measure it

[–] tyler@programming.dev 1 points 4 days ago (1 children)

Using boiling water is still fine, the measurement will work, your comment literally only is a problem if they don’t measure in time. So yes, it’s exactly like sticking it in an oven and not measuring at the same time

[–] untorquer@quokk.au 1 points 4 days ago

Fair, if you do account for the change in water volume over time then you could maintain accuracy, but also good luck reading the meniscus.