this post was submitted on 30 Jun 2024

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722

Physics (mander.xyz)

submitted 11 months ago by [email protected] to c/[email protected]

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[–] [email protected] 44 points 11 months 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] 43 points 11 months ago (1 children)

Now it is our turn to study statistical mechanics.

[–] [email protected] 13 points 11 months 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] 1 points 11 months ago (2 children)

Which book?

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

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

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

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

[–] [email protected] 4 points 11 months 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] 33 points 11 months 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 11 months ago

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

[–] [email protected] 2 points 11 months ago* (last edited 11 months ago)

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

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

I read this in TechnologyConnections voice.

[+] [email protected] 31 points 11 months ago* (last edited 10 months ago) (3 children)

[deleted]

[–] [email protected] 55 points 11 months 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] 27 points 11 months 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 11 months ago

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

[–] [email protected] 24 points 11 months ago

I love the honesty of actual science.

[–] [email protected] 19 points 11 months ago (1 children)

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

[–] [email protected] 5 points 11 months ago (1 children)

Weinersmith, really? Poor bastard

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

[–] [email protected] 4 points 11 months ago (1 children)

His last name at birth was Weiner.

[–] [email protected] 2 points 11 months ago

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

[–] [email protected] 5 points 11 months ago

Just wait until you learn about friction!

[–] [email protected] 3 points 11 months 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 11 months 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