/sci/ - Science & Math

>>4558005
but if units are arbitrary? he is correct, right?

Lena

Same as most people on sci. Twilight. she is our mascot now anyway.

But there is no system of units that will remove all proportionality constants. So we stick with one system and deal with whatever equations have them.

>>4558013
He is correct. You can set all bar 1 of your constants to 1 by choosing appropriate units

>>4558013
No, he isn't. Stuff would be off the mass shell.

He bullshits everything, just like the Pauli Exclusion Principle shit with "energy levels".

>>4558024
You need to have c in the mass energy equivalence. You can use natural units with c=1, but you can't set it to 1 and remove it entirely.

>>4558028
>>4558028
>Stuff would be off the mass shell.
wat the fuck are you talking about? how does changing the units effect the mass shell at all?

>>4558031
>you can set c = 1 but you can't set c = 1

Make up your mind.

Why is she so perfect?

>>4558032
>>4558013
God I swear half the people here are fucking retarded

<span class="math">E^2 - |\vec{p} \,|^2 c^2 = m^2 c^4[/spoiler] simplifies to <span class="math">p^2=m^2[/spoiler] you fucking idiot!

There's nothing wrong with natural units. And there was nothing wrong with what he said about "energy levels", he used layman terminology. The quantum states do change, but do to decoherence it's not noticable.

>>4558010
>>4558044

sluts

pic related

>>4558056
>Purest Yuno
>Slut

>>4558056
Yes, she's a slut and I'm perfectly ok with it.

>>4558049
>hello I did not understand shit but I'm trying to brag about it anyway

inb4 jelly and mad and shit anime and no story line etc

OP, natural units are probably the most common way to do relativity. Almost everyone sets c=1. Not doing so just makes shit unnecessarily messy. Cox was 100% correct, even though I agree the Pauli exclusion thing was bullshit.

>>4558013

In astronomy c is often just 1. Whoever screencapped that is a moron.

http://en.wikipedia.org/wiki/Hypatia

(._. )

He has a point, but he doesn't understand that it's easier to use joules.

>>4558074
Oh and you've taken two courses of QM and two of QFT? Please enlighen me where I am incorrect with this babby shit.

http://www.hep.manchester.ac.uk/u/forshaw/BoseFermi/Double%20Well.html

>>4558075
At least they're not from the K-ON cast.

Only right answer

Posting science related waifu

Only the best

Hypatia (ca. AD 350–370–March 415) ( /haɪˈpeɪʃə/ hy-pay-shə; Greek: Ὑπατία}} Hypatía) was a Greek Neoplatonist philosopher in Roman Egypt who was the first notable woman in mathematics.[1] As head of the Platonist school at Alexandria, she also taught philosophy and astronomy.

>>4558079
She's mine.

Fuck off.

She makes me drool.

>>4558082
You're not wrong, you just talk about unrelated stuff.

am i doin it rite?
>inb4 >>>/mlp/

I have an imaginary 3DPD waifu.

Most intellectualistic character I've ever come across.
Porn of her doesn't exist, and I'm the kind of /sci/entist who consciously retracts all sexual feelings anyway, so I'd say it'd be a pretty high level relationship.

>>4558107
That retard claimed using natural units invalidates the mass shell, and Cox bullshitted the PEP shit he said.

A) It does not change anything on/off the mass shell, not anything else if QFT for that fucking matter
B) Cox was correct if we assume a double well with no decoherence.

How am I talking about "unrelated stuff"?

The Mandelbrot set

>>4558107
That retard claimed using natural units invalidates the mass shell, and Cox bullshitted the PEP shit he said.

A) It does not change anything on/off the mass shell, nor anything else in QFT for that fucking matter
B) Cox was correct if we assume a double well with no decoherence.

How am I talking about "unrelated stuff"?

>>4558118
>Porn of her doesn't exist

Time to make a fanfic.

Enlighten me with your wisdom, anons, for I do not understand a thing you are saying.

Pic related: my waifu

>>4558118
>Most intellectualistic character I've ever come across.

>>4558118
>Implying waifus are a concept that exists solely for the shallow/erotic delusions of lonely people.
>mfw implications are actually correct.

>>4558150
>2012
>not liking perfect geometry and characteristics
>not liking emphasized personality
>liking 3DPD that you will never get or be with
ISHYGDDT

>>4558082
>http://www.hep.manchester.ac.uk/u/forshaw/BoseFermi/Double%20Well.html
Thats a really bad analogy as it assumes a superposition across a finite potential barrier which doesnt exist in the real world because of decoherence

Also how do I choose a waifu?

Uiharu is my waifu because she can break the laws of thermodynamics.

>>4558111
This

>>4558135

Gahara must have some kind of degenerate autism or assburgers

>>4558177
>Also how do I choose a waifu?

You can't choose a waifu, she chooses you. You see her and you understand that she is the one.

>>4558135

Gahara must have some kind of degenerate autism or assburgers. She probably likes pure math.

Sweater puppies.

>>4558195
What sort of psychedelics do I need to achieve this?

Obligatory furry waifu

>>4558210
You don't need anything of the sort, you just need to watch enough anime to understand the superiority of 2D girls.

Allright transhuman furry thread.

>>4558177
>>4558150
This will clear everything up for you. I can understand you haven't read this if you don't frequent /a/, so I shall educate the unenlightened.

Is this a pony thread?

>>4558227
No, you're the only faggot here. I hope.

Why are furries so goddamn annoying?

>>4558222

>transhumanism
>looking more like lesser animals

doubt.jpg

>>4558227
>>4558222
Fuck off cunts

>>4558227
sure is!

rarity

>>4558230
No, there's others - myself included. Ignore and report the obnoxious faggots.

why do furries have to ruin everything

>>4558118
>Most intellectualistic character I've ever come across.
>Picture of batshit insane bitch who tortures people for fun.

She's mine so back off bitches.

>>4558246
You ruin it for yourself.
It's just alt art, get over it.

>>4558223
>how-to-willingly-descend-into-madness.jpg

>>4558247
Now you made me interested in that weeaboo comic.

>>4558246
True fact.

>>4558246
>finds a problem with furries
>no problem with ponies
Hm?

>>4558005

Whats wrong with the picture. He's right.

I wondered the same thing in a different context. 'c' relates the permittivity of free space to electric fields and magnetic fields. It just so happens that because of our units, there's a big imbalance. For example, 1T is a MASSIVE magnetic field, but a 1N/C electric field is pretty small.

That discrepancy arises because c in the units we've defined, is huge. 3x10^8. If we built our units differently, we could have c = 1. The units for magnetic field would convert with electric fields nicely, E = m.

It's possible. Massive hassle and pointless but possible. Wouldn't be feasible, we can't even get the Americans to adopt Metric, let alone another completely new set of units.

>>4558252

the only true /sci/ goddess

pic related

>>4558079
>implying Hypatia is the woman pictures in the School of Athens

>>4558260
>I wondered the same thing in a different context. 'c' relates the permittivity of free space to electric fields and magnetic fields.
That's how its defined in babby electromagnetism. In real men's physics it comes from field theory.

>>4558272
This

/r/ing the image of EK taking a shit behind a tent

>>4558272
Our great troll queen, smiter of noobs and collector of butthurt tears!

>>4558277

>>4558282
Thank you, lord anon

>>4558252
>Typical character written by writers who don't know how to write a genius character, and went the easy way, giving them a good memory and the ability to speak multiple languages, utterly disregarding the correlations and meaning of intelligence.

Well, a girl well-versed in physics, neuroscience and philosophy who also frequents message boards would be the alternative mascot for /sci/, though.

>>4558274
>That's how its defined in babby electromagnetism. In real men's physics it comes from field theory.

That would be because I'm a first year undergrad.

Patience my friend.

>>4558282
>>4558277
what the actual fuck

>>4558294
How would you define intelligence, then? How would you make a character a genius?

>>4558309
Very knowledgeable in Physics and sporting a boundless hatred for biology.

>>4558282
>>4558272

This cant be our EK, it just cant. I cant see the will to troll a science board on her face

nope

no

>>4558317

No that is EK, I was in the thread her facebook was found.

There's not really any other pictures of merit though, that's the best one.

>>4558312
I'm a genius, then! Except for the fact that I'm graduating in business management. But I've always kept my interest in Physics.
Also, my memory is beyond stupid (in a good sense) and I can learn languages easily if I put a small effort on it.

>>4558282
How the fuck did you get this?

>>4558323
>graduating in business management
>physics hobby

>implying you know anything about physics

>>4558312
Who fits that?

>>4558323
You don't know anything about Physics unless you spend every minute of your time studying it. Why do you think Physicists are so critical of every other field?

>>4558334
I like to read and I understand what I read. Of course my knowledge of Physics is really shallow, but I am proud of it.

>>4558309
This is the guy who actually posted that.

I won't go into specifics, but I would probably at least incorperate the step-by-step rational thinking process you need to actually get beyond the 150 iq mark, instead of making a character who can somehow give a lecture about theoretical physics, but thinks that a kilobyte is the basic unit of data storage before being told otherwise.

>>4558337
read >>4558342

Damn, can't a man have an interest in Physics without being a Physicist?

>>4558326
It was originally from the "Question for EK Thread"

>>4558351
>answer to a post gauging intelligence by knowledge in Physics by saying that therefore you are intelligent
>turns out you don't actually know Physics

>>4558336
That one purple colored horse from that child's show

>>4558362
"I've always kept my interest in Physics." != "I know a lot about Physics"

This is what happens when physicists try to talk biology

>>4558367
It appears you also don't know a lot about reading comprehension.

>>4558376
>implying a real physicist would even deign to answer a biology question

>>4558385
>biology
>hard science

>picking on a scientist because he doesn't know the entirety of science
lol, dem standards /sci/.

>>4558346
"step-by-step rational thinking process"
Can you explain better that concept? I'm afraid I don't quite get it.
Pardon my ignorance.

>>4558385
>Implying Max Delbruck and Aaron Novick don't exist.

>>4558396
>phd in physics
>lecturer
>popsci idol
pick all of them

>>4558385
feynman loved biology

>>4558407
>bio"physics"
>real physics

>>4558412
No he did not. He liked neuroscience. He had a slight interest for molecular biology because nobody at the time knew how DNA Polymerase worked

>>4558417
You should go and edit feynman's wikipedia page. 4th paragraph

>>4558427
>He also had a deep interest in biology, and was a friend of the geneticist
That's exactly what I said. Go read his autobiography you autist.

>>4558427
>The next paper selected for me was by Adrian and Bronk. They demonstrated that nerve impulses were sharp, single-pulse phenomena. They had done experiments with cats in which they had measured voltages on nerves.

>I began to read the paper. It kept talking about extensors and flexors, the gastrocnemius muscle, and so on. This and that muscle were named, but I hadn't the foggiest idea of where they were located in relation to the nerves or to the cat. So I went to the librarian in the biology section and asked her if she could find me a map of the cat.

>"A map of the cat, sir?" she asked, horrified. "You mean a zoological chart!" From then on there were rumors about some dumb biology graduate student who was looking for a "map of the cat."

>When it came time for me to give my talk on the subject, I started off by drawing an outline of the cat and began to name the various muscles.

>The other students in the class interrupt me: "We know all that!"

>"Oh," I say, "you do? Then no wonder I can catch up with you so fast after you've had four years of biology." They had wasted all their time memorizing stuff like that, when it could be looked up in fifteen minutes.

>>4558442

>>4558417
He voluntarily took a biology course when he was a graduate student at Princeton.

>>4558496
Yes, your point? He wasn't interesting in vanilla biology, rather neuroscience and genetics.

>>4558436
I have. How do you know he didn't love biology?

>>4558412

>Person X likes Y
>Person X is a relevant personality
>Therefore Y is desirable

>>4558496
Plenty of my coursemates in undergrad took biology courses so they had less workload for the semester.

>>4558406
It means logical reasoning. When I say step by step rational thinking, I mean the objective process of thinking in which you take an analytic approach. Metacognition is important in this.

It's like that classic high school problem:
"You've got 2 egg timers, one of 7 minutes and one of 11 minutes. How to measure out exactly 15 minutes?"
If you're really unintelligent you'll just use trial and error, but if you start rationalising, you can easily deduce the answer. *Need to measure out 15. 15-11=4. If you can measure out 4 on the 11 timer, you can do that. Measuring out 4 on the 11 timer can be done by setting both timers simultaneously, since 11-7=4*

Beta sciences give a huge amount of practice to this kind of thinking, sometimes making it almost intuitive. You'll find that every student who gets through his second year of physics/mathematics will be very proficient at this kind of thinking.

>>4558505
why suddenly add the qualifier "vanilla" mr fundie?

>>4558512
He did it as a post grad.

>>4558514
That's actually the kind of problems you do in elementary school, and then promptly forget how to solve when you grow up.

>>4558526
Because only undergrads try to lighten their workload, right?

>>4558510
not implying that, just arguing with this troll post, for some reason

>>4558385

>>4558521
>implying I am that faggot
Because neuroscience and genetics are not fucking zoology or generic biology where you memorize retarded biomolecules and recite them to some professor with an IQ lower than a monkey.

>>4558531
Feynman rarely did anything he didn't love, if he didn't have to. And he would add to his work load if he found something interesting.

>>4558535
i know and agree

but they are biology

and your butt hurt over definitions is very like that autist

>>4558527
Damned high schools not providing students with an obligatory course in logical reasoning/thinking techniques when they're at that stage.

>>4558554
Seriously.
Teaching people to think well > teaching them anything else.

I want agnosticism rates to exceed 50%, and liberalism to become widespread already.

>This wretched so-called post-modern society in which the majority of people are still at the stage of "Becuase I was taught so, so it's true, derp"

>>4558028

>He bullshits everything, just like the Pauli Exclusion Principle shit with "energy levels"

Here is a Sixty Symbols video bringing up that exact thing Cox said at that show.
>http://www.youtube.com/watch?v=ASZWediSfTU
As said here in the thread it was layman terms.

Remember kids, he is a popscientist doing it to raise interest in science not make it seem to hard.

>>4558613
That is why whenever I learn something I always ask "Why?" and try to figure out the reasons and the logic behind the theory. Fortunately, I consider myself relatively good at it and the professors help too.

EK is my waifu

I am my own waifu because I am the only perfect human being. Deal with it.

>>4558803
dealt with

>>4558797
the fuck is a 'waifu'?

>>4558808
That which you are for most of us in this board.

>>4558803

>Perfect
>Being human

I'm getting there too. Our paths will merge in years to come my fellow overman

>>4558808
Read the fucking thread. It's explained more than once.

Never had one.
Don't cry for me, I'm already dead.

>>4558514
That answer doesn't actually work.
lol.