The h Bar

« first day (3249 days earlier) ← previous day next day → last day (1672 days later) »

4:28 AM

@SwapnilDas I can't help with fluid dynamics I'm afraid. It's not a subject I love, and at college I did my best to avoid it. Sorry :-(

Swapnil Das

@JohnRennie oh nvm

@JohnRennie Do you know anyone here who could help?

John Rennie

@SwapnilDas I don't recall any discussion of fluid mechanics. It seems most of us feel no great enthusiasm for it.

We do have a question on the main site for book recommendations.

313

Q: Book recommendations

Every once in a while, we get a question asking for a book or other educational reference on a particular topic at a particular level. This is a meta-question that collects all those links together. If you're looking for book recommendations, this is probably the place to start. All the question...

Swapnil Das

@JohnRennie Ohk. Why such aversion for the subject, isn't it beautiful?

John Rennie

@SwapnilDas There are a couple of fluid dynamics links there.

Fluid dynamics was invented by the Devil to stop physicists feeling too smug.

Swapnil Das

@JohnRennie lol.

John Rennie

4:38 AM

On the seventh day God rested, and the Devil snuck in and created the Navier-Stokes equations.

Swapnil Das

@JohnRennie My gawd, you make it sound harder than string theory

John Rennie

@SwapnilDas I'm not sure the two can be usefully compared, but I note the NS equations have an outstanding Millennium prize associated with them while string theory doesn't.

Swapnil Das

@JohnRennie True that. What do you think is the bothering side of the subject, the math, physical intuition , or what?

John Rennie

Terry Tao has a nice article on why the NS equations are so troublesome. It's on his blog somewhere.

Aha found it

Swapnil Das

thanks

1 hour later…

Slereah

6:15 AM

I mean it's not rocket science

It's nonlinear

Slereah

6:56 AM

catalog.princeton.edu/catalog/4122379

there it is

4 hours later…

Ryan Unger

10:59 AM

@JohnRennie actual physicists don’t care about the NS equations...

Their regularity properties, I mean

Slereah

@RyanUnger

I need you to steal a paper

It's the declaration of independence

Ryan Unger

Oh no

I’m not nick cage

Slereah

Sent a request for that thesis to Princeton

Hopefully they will acquiesce

Though I don't think you'd enjoy it

It's like 60's experimental GR stuff

Very much not rigorous

Ryan Unger

11:14 AM

@Slereah what's it called

Slereah

catalog.princeton.edu/catalog/4122379

The book I found contains a trimmed down version of that thesis

Ryan Unger

@Slereah I know exactly where in the library it is

I'll check it out so they can't scan it for you >:3

Slereah

Nooooooooooooooooooo

It's weird that there doesn't seem to be any effort made to digitize thesis

I know that Tipler's thesis has also never been digitized

there's just a bunch of thesises in various libraries that nobody can read

Ryan Unger

yeah it's annoying

there's a thesis from 2010 that I wanted but isn't digitized

well it probably is but you can't download it

Slereah

Did you try asking the author for it

2010 the author probably has a digitized copy

I'm not sure Tipler would even have a copy of his thesis these days

He'd have to check his old boxes in the attic

with his grampa fragile bones

Ryan Unger

11:26 AM

I didn't but his advisor is a professor here

Slereah

My master thesis has bibliography stuff that I have not read

for shame

But I wasn't gonna read a proof of the Lie-Trotter-Kato theorem

I think the best way to get a good sense of what a proton may be like in GR is to take a coherent state for the Dirac equation and see what it looks like in the limit of zero radius

Probably the best way to get the idea of a point charge in non-static spacetimes

bolbteppa

Periodic reminder Kaku's string books are insane

Slereah

What did he do now

bolbteppa

11:43 AM

"This is a warning that the supersymmetric string is not going to be as simple as super-Yang-Mills or supergravity theory."

They are a walk in the park after all

bolbteppa

12:39 PM

'Number Theorist Fears All Published Math Is Wrong'

Slereah

12:51 PM

@bolbteppa Did they only discover that now

bolbteppa

Bit of a hype article in fairness ' "I think there is a non-zero chance that some of our great castles are built on sand," Buzzard wrote in a slide presentation. "But I think it's small."'

Slereah

Also rly

I'm thinking the big proofs have been tested over and over again

I'm guessing the theorems in danger are going to be fairly specific

Secret

well, the one billion dollar question is: Who is going to check that the AI have done the proofs correctly

Sir Cumference

1:25 PM

@Secret other AIs

Novalium Company

How did the reconstruction era ended? Did the South accept black people as equals and accepted the fact that they'll vote?

Slereah

Bit of an odd topic to bring here

Novalium Company

I read, but I still don't understand what the reconstruction era after the civil war is all about

@Slereah pls

Slereah

Apparently Marzke is still alive

His thesis was published in 59, so he's probably about 80 years old

Hang in there old man

Sir Cumference

@NovaliumCompany There's a history SE chat you know :P

PM 2Ring

1:36 PM

@NovaliumCompany You should probably chat about that topic with historians, as Sir Cumference suggested. In the mean time, take a look at en.wikipedia.org/wiki/Jim_Crow_laws

Novalium Company

@PM2Ring I read it, but why did you send it?

Racist people are dumb people... what they say it's the same as saying, people above 1,70 m will be respected and treated well, and people below 1,70 m will be treated horribly. You don't judge people on genes...

Slereah

bold stance

Sir Cumference

I think you're preaching to the choir

Slereah

Is there a racist stack exchange

Novalium Company

@Slereah ok

PM 2Ring

1:54 PM

@NovaliumCompany I sent it as an answer to "Did the South accept black people as equals".

Novalium Company

@PM2Ring ok

bolbteppa

Lies My Teacher Told Me

Lies My Teacher Told Me: Everything Your American History Textbook Got Wrong is a 1995 book by James W. Loewen, a sociologist. It critically examines twelve popular American high school history textbooks and concludes that the textbook authors propagate false, Eurocentric and mythologized views of American history. In addition to his critique of the dominant historical themes presented in high school textbooks, Loewen presents themes that he says are ignored by traditional history textbooks. == Themes == In Lies My Teacher Told Me, Loewen criticizes modern American high school history textbooks...

skillpatrol

@Slereah we could propose a "racism.se"

Slereah

2:10 PM

@skillpatrol might be poorly received

skillpatrol

true dat

~~sexism.se~~

Sir Cumference

2:46 PM

...anyway

How's life with y'all

3 hours later…

Novalium Company

5:29 PM

@SirCumference noice

vzn

5:40 PM

@bolbteppa lol ofc not physics teacher(s) o_O :P

@SwapnilDas nice, great! keep up the good work :)

bolbteppa

@vzn the people who imply physicists/mathematicians are lying are more like the 'lying teachers' referenced in that book than the actual teachers, a counter-intuitive point to the 'skeptics'

vzn

@bolbteppa ah, so only history teachers lie. right. figures. @#%& humanities/ liberal arts lol

bolbteppa

I guess that's too 'authoritarian' for the free-thinking skeptics eh haha

vzn

or, theres a concept of "blind spots" in psychology...

4 hours later…

Physics Meta

10:04 PM

Q: We need systematic improvements to expiration on bounties

First a polite request: I think most active users are people who mostly answer questions and don't ask questions. As a result I think a lot of the "culture" among administrators & moderators promotes things that reward "answerers" as opposed to "askers." I am writing this opinionated post beca...

discussion feature-request bounty

1 hour later…

Semiclassical

11:31 PM

@bolbteppa worth noting that Loewen explicitly frames his commentary towards history teachers, not general science. The main difference is the textbooks: math/science books are generally written and reviewed by professional experts

Whereas most high school US history books aren’t, eg the role of the Texas State Board of Education in determining history textbooks across the US

So the context for US history is explicitly political in a way that science generally isn’t

« first day (3249 days earlier) ← previous day next day → last day (1672 days later) »

all rooms