this post was submitted on 30 Jun 2024

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Physics (mander.xyz)

submitted 1 month ago by [email protected] to c/[email protected]

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[–] [email protected] 44 points 1 month ago (1 children)

Now it is our turn to study statistical mechanics.

[–] [email protected] 13 points 1 month ago (1 children)

I love that quote. I should buy that book just as an artifact to make me happy every time I see it. The absolute pinnacle of self-aware humor.

[–] [email protected] 0 points 1 month ago (2 children)

Which book?

[–] [email protected] 6 points 1 month ago (1 children)

The book "States of Matter" by David L. Goodstein.

[–] [email protected] 0 points 1 month ago

That's a good one lol, love it when a textbook has some humor.

[–] [email protected] 4 points 1 month ago

I can't remember which text it is, but it opens talking about a bunch of physicists studying stat mech then suck starting shotguns. Then it goes "and now it's our turn to study statistical mechanics"

[–] [email protected] 44 points 1 month ago

Then Einstein and Bohr broke everything again. Then Dirac and Feynman put it back together again. Now, we've basically got it all worked out...

[–] [email protected] 32 points 1 month ago (3 children)

People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpoint - it's more like a big ball of wibbly wobbly... time-y wimey... stuff.

[–] [email protected] 17 points 1 month ago

GIF clip of the Tenth Doctor from Doctor Who saying "wibbly wobbly... timey wimey... stuff"

[–] [email protected] 2 points 1 month ago* (last edited 1 month ago)

Wasn't there an experiment with lasers and reversing cause and effect?

[–] [email protected] 1 points 1 month ago

I read this in TechnologyConnections voice.

[+] [email protected] 30 points 1 month ago* (last edited 3 weeks ago) (3 children)

[deleted]

[–] [email protected] 55 points 1 month ago

Imo turbulence is "unsolved" in the same way the 3-Body problem is unsolved. It's chaotic.

https://en.m.wikipedia.org/wiki/Chaos_theory

[–] [email protected] 26 points 1 month ago

We have a mathematical model, Navier-Stokes (NS), that seems to describe motion of fluids well. In practice NS and related approximation models with simpler numerical solutions can be used to derive useful results. In that sense we can simulate turbulence for some sets of conditions and get useful approximations out. In general it’s still an open problem if NS has, given an initial velocity field, a solution that is globally defined and smooth. Practically this means we don’t know one way or the other if NS has initial conditions under which the velocity or pressure fields of the solution tend to infinity in finite time. This is the unsolved Navier-Stokes problem.

https://en.m.wikipedia.org/wiki/Navier%E2%80%93Stokes_existence_and_smoothness

[–] [email protected] 8 points 1 month ago

Maybe the turbulence was inside us all along / the friends we made along the way.

[–] lemming 20 points 1 month ago (1 children)

It should be said that this is from Science Abridged Beyond the Point of Usefulness by Zach Wienersmith.

[–] flambonkscious 5 points 1 month ago (1 children)

Weinersmith, really? Poor bastard

Thanks, though, that's really helpful! I didn't believe you until I looked it up :)

[–] rambling_lunatic 4 points 1 month ago (1 children)

His last name at birth was Weiner.

[–] lemming 2 points 1 month ago

And his wife's was Smith. They combined their names when they married.

[–] [email protected] 13 points 1 month ago* (last edited 1 month ago) (1 children)

"This is how the world works, except maybe it's not." - Physics

[–] [email protected] 11 points 1 month ago

"This is a model and description of how the world seems to work"

[–] [email protected] 6 points 1 month ago

Just wait until you learn about friction!

[–] [email protected] 3 points 1 month ago

What we need is a visionary stem dropout to put it all together in a powepoint and release a YouTube video about how academia is suppressing their ideas.

[–] [email protected] 1 points 1 month ago

I read this in the jingle voice from 'the history of the entire world, I guess'. You know, the part about China?

Physics is back together 🎶 and it broke again