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Archived threads in /sci/ - Science & Math - 1039. page

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What keeps women from going into science? It is often said that women are under-represented in STEM fields because they are discouraged from going into them, but how exactly? As far as I can tell, very few people think female scientists are less capable than male scientists. In most shows with STEM characters, there is almost always a female scientist/doctor. There is generally a lot of encouragement for women to go into science in the media and pop culture. Also, if we keep on telling young aspiring female scientists that STEM is supposedly a field where they're "unusual/special/minority/discriminated against" due to their gender, won't that just discourage them and make them want to go into some other field where they will face supposedly fewer barriers?

Is it really just that women have less interest in science and math, and "systematic gender inequality" is not to blame?
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>"Math is hard, so I went into nursing."

That's why.
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>>8565373
>Is it really just that women have less interest in science and math, and "systematic gender inequality" is not to blame?
yes

in scandinavia where there is virtually no gender inequality there are 20 male engineers for every female engineer and 20 female caretakers for every male caretaker (larger ratios than in places with less gender inequality)

when you remove environmental factors the biological interests maximize
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>>8565389
(larger ratios than in places with less gender equality)*

>Christmas dinner
>Dad brings up Schrodinger's cat
>"Have you guys heard about this?"
>"Anon is smart, he has a Master's Degree in physics, anon explain what Shrodinger's cat is"
>Say I haven't heard of it, that's a quantum thing and I study fluid mechanics
>Dad explains: "Oh, well Shrodinger's cat is this theory in quantum physics. Let's say you put a cat in a box with a vial of poison gas. When you open the top of the box, the vial breaks, and the cat dies. So technically speaking, the cat is both alive and dead until you open the box."
>Isn't that cool?
>mfw
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>>8563019
That's what you get for not explaining it. Your family loves you and they want to hear you explain things you car about. No need to become so disgusted and awkward over something perfectly normal like this.
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Haha
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>>8563019
>mfw when a unqualified normie tries to sound smart by talking about quantum physics

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Anyone else in uni right now?
State your major and give a short description of how the people in it are like.
>Mechanical Engineering
>People who are a strange mix of childish nerd and Chad, trying to have a social life but usually studying most of the time
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Economy.
Students really don't know each other and brutally fight amongst each other, eventually competing for the same few good positions and careers. Not gonna get better. But a lot of pretty posh girls who learn all day and seek to get fucked by someone who does it well.
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>Computer Science
>Everyone in it is either retarded or a Pajeet (or both)
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>>8552082
>Maths
>A disgusting amount of normies

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>spend weeks developing mathematical model for the motion of a system for a paper
>Finally find one
>It fits the data perfectly to a 0.03% error
>Celebrate
>Go through the math again just to admire my work
>Find a small algebra error
>When fixed, the model is completely wrong
>Back to the drawing board

Who else knows this feel?
Luckily, I have since found 2 more models, but all with 5-10% error...
12 posts and 1 images submitted.
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>>8569074
just put the error back in

call it "dark algebra"
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Just do what everyone else does. Manually change the experimental data so that it fits the model.
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>>8569090
The error is really obvious though
I was accounting for friction and managed to fuck it up by assuming friction is proportional to the square of the velocity, since I was working on another paper at the same time which dealt with the drag equation. I did not think much of it until I noticed it a few hours ago, and here I am. Fucked

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At least with an art degree, you'll be somewhat "cultured" and be able to live life more enjoyably, as you'll be able to criticize and analyze culture properly, and put those skills to use in everyday life.

You won't ever use any of the skills from a theoretical degree in math (same thing) in real life, nor in any science, nor anything else. There comes a point where the abstractness of math feels like it was just made up to exist, by bored mathematicians — it's useless.

With a degree in theoretical mathematics you are actually less employable than an artist. An art degree isn't a tag that says I don't like interacting with people.

If you're going to get an unemployable degree, at least go for something that will make life more enjoyable/complex, like philosophy, literature, or art. Not math — it's more useless than the others at a point.

A Ph.D in Theoretical Mathematics, during the day. A Pizza delivery man at night.

~(sad)
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What Uni these days graduates a math major without exposing that student to several courses in computer languages? None of the UCs, that's almost certain.

If you're going to be studying [diluted because it uses computers, pencils, slide rules, paper, and calculators instead of just your brain] "math", and using computers for it, why not just learn all about the science behind the automata machine, what makes it work, the theory and the math behind it?

Why not use your math for something useful? (computer science)
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>>8569022
>Theoretical mathematics.
Sounds like it's your fault.
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>>8569022
>With a degree in theoretical mathematics you are actually less employable than an artist. An art degree isn't a tag that says I don't like interacting with people.
confirmed for not having seen the massive amount of interaction with other students/professors to successfully pull off a math phd

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how did they find A_n, from a(x), /sci/?
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>>8568983
>a_0 + (a_1 - a_0)x + (a_2 - a_1)x^2 + ...
>=
>1 + x + 3x^2 + ...

Oh, gee, I wonder.
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Not sure what tgey did with A as the partial fractions bit shpuld be -1/2 , but they ignore this? Will have a go at solving soon
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[math] \dfrac {1} {1-c} = \sum_{n=0}^\infty c^n [/math]

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If I want to travel faster than light, why can't I just take a particle and project it with enough energy that when plugged in the value will be >c?
16 posts and 1 images submitted.
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>>8568580
Also how can a photon travel at all if you can't divide by zero?
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>lowercase e for energy

Because that's an equation which is only valid for zero velocity. The proper equation is
[math]\displaystyle E=\frac{mc^2}{\sqrt{1-\beta^2}}[/math]
where [math]\beta[/math] is the velocity relative to the speed of light. Solving for the velocity, you find
[math]v=c\sqrt{1-(mc^2/E)^2}[/math] which approaches the speed of light asymptotically as the energy becomes large.
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>>8568597
Excuse my failure to use in-line latex. Beta is v/c.

>>8568587
Again, because you're not seeing the full picture. Mass isn't properly defined for that situation, but momentum is.

https://www.youtube.com/watch?v=NnMIhxWRGNw

Just watch this.

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What's the best explanation of magic?

cognitive bias?
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>>8568323
>Illusion.
>See the magician and contemporary magic.
/thread
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>>8568325
yeah, but how bout pre modern times?

is there a part of the brain to allow faiht?
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Mediterraneans felatio everyone they meet.

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>tfw you realise that a finite speed limit for propagation of massless particles is required for the universe to be anything but a homogeneous energy soup

>we will never have FTL travel

Should I just start studying something more meaningful, like Architecture or 'finance'.

Fuck.
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why cant it be a homogeneous energy soup
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>>8567810
We will never travel faster than light in the usual notion of what it means to travel a distance. But the fact is that GR predicts spacetime can warp, it is non unreasonable to guess with a theory of quantum gravity we may be able to figure out a way to "shortcut" distances through warped regions of spacetime.
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>>8568577
>le alcubierre meme

>chronic insomnia has no cure
11 posts and 2 images submitted.
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>>8565768
how about going to bed a stay in it until you sleep at reasonable times
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get fucked up on benzos senpai lmao
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There is, it's called meditation

Your body is refusing to let you sleep for a reason. Stop running from yourself and sleep will come

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Sorry if you get asked this every day, but I'm going through a crisis in my faith right now, and pretty close to (if not already left) leaving Islam.

The thing my mind keeps coming back to and that isn't making a lot of sense is what set off the big bang (if not a 'higher power')?

The only (non-multiverse) theory I can remember ever reading on /sci/ or elsewhere was that the universe has a lifetime akin to a rubber-band where everything will go back to how it started then begin again after the heat-death of the universe roughly 5 bil. years from now. Is there anything else like this theory that could explain where it all came from?
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قال تعالى: (أَوَلَمْ يَرَ الَّذِينَ كَفَرُوا أَنَّ السَّمَاوَاتِ وَالْأَرْضَ كَانَتَا رَتْقًا فَفَتَقْنَاهُمَا ۖ وَجَعَلْنَا مِنَ الْمَاءِ كُلَّ شَيْءٍ حَيٍّ ۖ أَفَلَا يُؤْمِنُونَ) سورة الأنبياء، آية ٣٠
>>
Cyclic or oscillating universe model is unlikely. It is much more likely that we live in an expanding universe that will never return to its original state.

The Big Bang is mysterious because people say time was created during it, so it's pointless to talk about what happened before the Big Bang, but that just claims that it is incomprehensible. There are other theories that use imaginary time to explain what happened in the universes "earlier" states.
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>>8567709
We honestly don't know shit, and we may never know.

Religion shouldn't be something that is forced upon you, it should be something that you want to join because it makes you happy.

Religion is a fucking game anyways, dozens of religions exists, and who is to say that mine is better than yours?

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How do you cope with having gone to a lower status university than you could've handled and doing a subject you didn't like and not being able to change due to being in the UK and being aged 24 knowing you have never done anything intellectual in your life? And having practically given up on your degree with over a year to go, handing in the absolute minimum to get a 2.1 (acceptable in the UK)?

Feels awful man. When I go through stuff in my own time, whether it's academic or not, I feel awful. Learning PHP is trivial. Learning maths for physical sciences (my uni missed out tonnes of stuff) is trivial. The exercises in SICP are trivial. I don't mean that I am finding everything easy- I mean that if I do this stuff it is not an achievement in any way like a MMath from Cambridge or a research paper in a scientific journal or creating a programming language or framework would be.

I'm implementing stuff in Lisp from SICP when Turing was literally inventing the theory behind computer science. Learning PHP is easy but I haven't done anything near as smart as the guy who created PHP (and the guy who created JavaScript did it in about a week!).
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If it bothers you so much, think about a task, set a time table with milestones and start working on it.
Watch less tv and masturbate less.
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>>8568079
can you stop projecting

>>>/r9k/
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>>8568079
Do a bacherlor in another university, or apply for a master.

You're 24. You're far away from being too old to start all over.

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Hey. How can i get lnK=-E/RT + lnA from dlnK/dt =E/RT^2 ? if possible could please someone post step-by-step solution
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>>8567888
Use thermodynamica definitions and make sure the only thing you get spoonfed is dick. Hint, use equation of state
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>>8567888
Separation of variables
[math] d \log k = \frac{E}{RT^2} d T[/math]
[math] \int d \log k = \int \frac{E}{RT^2} d T[/math]
[math] \log k = -\frac{E}{RT} + c[/math]
[math] k = \exp\left( -\frac{E}{RT} + c \right)[/math]
[math] k = \hat c \exp\left( -\frac{E}{RT} \right)[/math]
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>>8567896
You can't treat d/dx as a fraction dumbass.

what are some essential, important definitions / theorems in calculus or real analysis? i.e.

>definition of a limit
>L'hôpital's rule
>??
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I don't know OP why not crack open a real analysis textbook and find out.
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Definition of the natural numbers, rationals, reals
Definitions of limits, deratives, anti-deratives
A proper understanding of Eulers identity
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>>8567285
I'd just like to interject for a moment. What you're referring to as calculus, is in fact, real analysis, or as I've recently taken to calling it, Undefined control sequence \leqslant-analysis. Calculus is not a branch of mathematics unto itself, but rather another application of a fully functioning analysis made useful by topology, measure theory and vital R-related properties comprising a full number field as defined by pure mathematics.

Many mathematics students and professors use applications of real analysis every day, without realizing it. Through a peculiar turn of events, the application of real analysis which is widely used today is often called "Calculus", and many of its users are not aware that it is merely a part of real analysis, developed by the Nicolas Bourbaki group.

There really is a calculus, and these people are using it, but it is just a part of the field they use. Calculus is the computation process: the set of rules and formulae that allow the mathematical mind to derive numerical formulae from other numerical formulae. The computation process is an essential part of a branch of mathematics, but useless by itself; it can only function in the context of a complete number field. Calculus is normally used in combination with the real number field, its topology and its measured space: the whole system is basically real numbers with analytical methods and properties added, or real analysis. All the so-called calculus problems are really problems of real analysis.

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What is the objective definition of success in life, the universe, and everything?

(e.g: Money?, Genetics?, Long Penis? ...etc)

You /sci/ence to backup your answer.
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The definition of success in life is reproduction, the further perpetuation and evolution for life itself.
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le forty-two ecks-:^P
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>>8566238
Success is not one single answer and is not the same for everyone.

Success for one person might be having children while another would see success as becoming rich.

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