How to open a textbook

1.5k points · 63 comments · view on lemmy.world

63 Comments

troyunrau@lemmy.ca · 143 pts · 2y (10 replies)

My third year thermodynamics course opened with a similar quip by the lecturer. Entropy is actually depressing. You can't fight it. You can't not fight it. It just wins.

WbrJr@lemmy.ml · 42 pts · 2y

So.. that's why I never tidy up my room. I'm just too smart!

gamermanh@lemmy.dbzer0.com · 25 pts · 2y (4 replies)

Man, you humans are going to be really upset when you find the universal wall....

I mean uh....

Hey, how was the game last night amirite?

Zorsith@lemmy.blahaj.zone · 24 pts · 2y (3 replies)

Did you see that ludicrous display last night?

FooBarrington@lemmy.world · 13 pts · 2y (1 reply)

What was Wenger thinking sending Walcott on that early?

UlfKirsten@feddit.de · 11 pts · 2y

Thing about Arsenal is they always try and walk it in

in4aPenny@lemmy.world · 1 pts · 2y

Yeah he played his most popular hit "Move" and people went nuts as usual.

Hupf@feddit.de · 12 pts · 2y

All we have to decide is what to do with the entropy that is given us.

AngryCommieKender@lemmy.world · 7 pts · 2y

To quote The Star Child, "What, you haven't planned that far ahead?"

oce@jlai.lu · 5 pts · 2y

Life is a temporary win over it, just enjoy it while you can.

Etterra@lemmy.world · 4 pts · 2y

Well I mean yeah. It wasn't my first existential crisis - you get used to them eventually. Or you do what those guys did I guess.

Dogs_cant_look_up@lemmy.world · 113 pts · 2y

One opening line that's always stuck with me is:

"The doctor said I was a paranoid schizophrenic. Well, he didn't actually say it, but we knew he was thinking it."

gibmiser@lemmy.world · 69 pts · 2y (3 replies)

So... is Goldstein still around or did he...?

Maven@lemmy.world · 60 pts · 2y

Don't worry, he's alive: His wiki page

SomeoneSomewhere@lemmy.nz · 39 pts · 2y (1 reply)

Apparently still alive at 85: https://en.wikipedia.org/wiki/David_Goodstein

Zehzin@lemmy.world · 39 pts · 2y

There's still time

LillyPip@lemmy.ca · 50 pts · 2y (1 reply)

We are all gas with a slightly denser particle distribution.

🔫

hernanca@lemmy.world · 23 pts · 2y

We all are vast collections of harmonic oscillators.

usualsuspect191@lemmy.ca · 29 pts · 2y (1 reply)

Ah yes, joke #3

toothpaste_sandwich@feddit.nl · 6 pts · 2y

Thank you for this, it was new to me

Pulptastic@midwest.social · 22 pts · 2y (7 replies)

My favorite class in grad school. I absolutely loved deriving the laws of thermodynamics from first principles based the random motion of atoms. It was beautiful.

Avg@lemm.ee · 5 pts · 2y

Is the grad school in the room now? Do you need help?

humbletightband@lemmy.dbzer0.com · -5 pts · 2y (5 replies)

Grad school? This is for 4y bachelor student

Custodian1623@lemmy.world · 8 pts · 2y (4 replies)

Bachelor student? I learned this in high school

Avg@lemm.ee · 8 pts · 2y (2 replies)

If you didn't study this in elementary school, I don't know what kind of bullshit school you went to.

baropithecus@lemmy.world · 6 pts · 2y (1 reply)

Umm, this is the first thing we were taught on the first day of kindergarten.

fsxylo@sh.itjust.works · 2 pts · 2y

Goo gah

humbletightband@lemmy.dbzer0.com · 1 pts · 2y

No flexing, was just wondering why

umbrella@lemmy.ml · 22 pts · 2y (20 replies)
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AngryCommieKender@lemmy.world · 14 pts · 2y (19 replies)

Physics ≠ Computer Science

RGB3x3@lemmy.world · 27 pts · 2y (18 replies)

Can't have computer science without physics.

AngryCommieKender@lemmy.world · 7 pts · 2y (16 replies)

I'm not entirely sure of that. You can't have comp sci without algebra and potentially calculus. I could see a society that developed all three fields before they codified Physics

force@lemmy.world · 1 pts · 2y (5 replies)

How do you have computer science without calculus? Calculus is literally necessary for computer science, otherwise it'd just be like... shitty statistics with a little programming

Miaou@jlai.lu · 7 pts · 2y (2 replies)

Care to expand? Things like complexity theory and type theory, for example, have nothing to do with calculus

force@lemmy.world · 1 pts · 2y (1 reply)

In general, a lot of the stuff computer science shares with data science uses calculus, a lot of the statistics too, but also visuals and modelling other sciences (e.g. simulations) use calculus heavily. I recall utilising vector calc a decent amount when working with Vulkan, for example

Miaou@jlai.lu · 1 pts · 2y

Sounds like programming more than CS, in that case, fair enough. Also the linear algebra in computer graphics is, well, algebra, not calculus.

AngryCommieKender@lemmy.world · 2 pts · 2y (1 reply)

It would be inelegant as all fuck, but you could get away with just algebra, there are comp sci courses that only need algebra as the foundation.

force@lemmy.world · 2 pts · 2y

as far as i can tell, the ones that do that are usually just programming courses with "computer science" slapped onto the title. but i havent exactly gone to many colleges so i don't have the experience to say so.

loudWaterEnjoyer@lemmy.dbzer0.com · 0 pts · 2y (9 replies)

Do you really think people could make programmable microchips and processing units before they figured out physics?

AngryCommieKender@lemmy.world · 5 pts · 2y (8 replies)

No, but mechanical computers existed before microchips. They just weren't terribly useful

SkyezOpen@lemmy.world · 5 pts · 2y

Once I get my mechanical computer to run crysis we'll see who's laughing.

Honytawk@lemmy.zip · 1 pts · 2y (1 reply)

Wouldn't you also need to know physics in order to make a mechanical computer?

AngryCommieKender@lemmy.world · 2 pts · 2y

Not necessarily. We had the theory of mechanical computers well before both calculus and physics.

loudWaterEnjoyer@lemmy.dbzer0.com · -2 pts · 2y (4 replies)

What kind of argumentation is this? Are we talking about mechanical engineering or computer science? Please don't bent reality the way it fits your shape.

theneverfox@pawb.social · 2 pts · 2y

Sure you can. Physics is describing what is, computer science is building what could be

The two things require very little overlap. Even physics systems in video games don't use real physics - it just feels better when you fudge it

fizix@lemmy.world · 20 pts · 2y (2 replies)

I don't know. I like Griffith's Quantum Mechanics which opens saying if you think you're starting to understand this stuff, you really haven't.

normanwall@lemmy.world · 2 pts · 2y (1 reply)
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interdimensionalmeme@lemmy.ml · 5 pts · 2y

Because you're touching them with your eyes

psmgx@lemmy.world · 15 pts · 2y (1 reply)

Weed out the riff-raff who can't hack it

tate@lemmy.sdf.org · 8 pts · 2y

Boltzmann is "riff-raff" now?!? I get what you're going for, but c'mon.

Paradachshund@lemmy.today · 14 pts · 2y

To quote twitch chat: "monkaS"

melpomenesclevage@lemm.ee · 10 pts · 2y

This is beautiful and I must study this subject now.

You know; so I have an excuse.

astreus@lemmy.ml · 10 pts · 2y (1 reply)

I dunno, I usually open a textbook by turning over the front cover 🥁

CluckN@lemmy.world · 5 pts · 2y

Why do we have a 🌫️ emoji instead of a cymbal? It would compliment the drum emoji so well.

southsamurai@sh.itjust.works · 9 pts · 2y (2 replies)

Statistical mechanics is so fucking brutal \m/

ornery_chemist@mander.xyz · 13 pts · 2y (1 reply)

...and then we take the partial derivative of the log of this infinite sum wrt molar volume to find that--

- Why?

Why what?

- helplessly gestures at the whiteboard

Oh, yeah, it's so the math works out later! Anyway, for small Θ, the derivative has a nice closed form that we can Tailor expand in f-

Donkter@lemmy.world · 16 pts · 2y

Yeah lol, lots of physics and math was invented by multidisciplinary geniuses who saw equations that seemed to have no answer and said "oh yeah, this looks like a problem from biology that I've seen solved with this bit of fluid mechanics, and that problem can be solved with this complex trick from differential calculus. And you know, after we do that the whole system is starting to look like a circuit that uses properties from thermodynamics..."

Then your teacher and the textbook throws it on a white board and says "some smart dude figured out this was the way to solve this problem. It looks like this and it boils down to this equation. Don't ask questions."

naevaTheRat@lemmy.dbzer0.com · 8 pts · 2y

There's a mechanics textbook called "there once was a classical theory" and it opens with:

There once was a classical theory Of which quantum disciples were leery. They said, “Why spend so long On a theory that’s wrong?” Well, it works for your everyday query!

EmperorHenry@discuss.tchncs.de · 6 pts · 2y (2 replies)
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nexguy@lemmy.world · 6 pts · 2y

So you are just going to live forever?

hglman@lemmy.ml · 5 pts · 2y

Of course, but then the book isn't for you.

TAYRN@lemmy.world · 2 pts · 2y
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avogadro@lemmy.world · 0 pts · 2y

Thanks Thiccle Rick