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Archived threads in /sci/ - Science & Math - 232. page
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How can science dismiss subjectivity when everything we know is subjective?
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Can you give an example of science dismissing subjectivity?
>>
>>8193800
>miracles don't exist
>>
>>8193803
Extraordinary claims require extraordinary proof. All you have are platitudes.

Now an hero before someone else catches your stupid.

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High IQ combined with Autism is like a fire of human endeavor burning inside of you.

Hie much AQ points do you get /sci/?

https://psychology-tools.com/autism-spectrum-quotient/

What is your potential to contribute greatness?
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>>8173951

IQ: ~130
AQ: 30
>>
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Humanity desperately needs someone with

IQ: ~180
AQ: ~40
>>
>>8173951
I have sex on a regular basis

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>penis envy
>castration anxiety
>interpreted the subjective responses of patients as scientific evidence that they may or may not want to fuck their mother/father

The more I read about this fuck and psychoanalysts, the harder it is for me to see how they contributed to any field of science, let alone psychology.
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>>8196510
Penis envy is most certainly real.

You need to bear in mind the era and environment Freud grew up in, which was relatively sexually repressed. This formed his means to unravel and model the psyche.
>>
>>8196512
>penis envy
what the fuck is that? I have 6.5 inches of meat and I'd trade 2 inches just to touch a chicks boobs
>>
>>8196510
I seriously hope modern psychologists don't actually take any of that Freud shit seriously.

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What is a good tattoo idea pertaining to math?
I've alwasy really wanted one and I've thought about maybe just getting e^pi(i)+1=0 since it contains 4 cool points of math being e, pi, i , and 0.

thoughts?
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Smith chart would be a pretty neat whole back tattoo imho.
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>>8191063

platonic solids and their graphs
>>
sine table

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So /pol/ says that internet porn has quite a few negative side effects

Is this true? I'm not asking for any political reasons, but for personal ones. I want to know if the negative effects of porn (shpuld there be any) outweigh the pleasure I derive from it

So, what studies have been conducted on this?
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>>8198436
Do your own research instead of listening to shitposters and /pol/tards on a "science" board.
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>>8198514
/thread
/board
/site
>>
It removed my ignorance of the human form, let me see the human body as bones being forced around each other by constructing tendons and muscles. It opened my eyes to the similarities between the male and female body and how interchangeable they are when you void the reproductive organs.

Note while i am in public, it is easy to tell how people look naked through their clothes, because everyone generally looks the same, with extra scar tissue along the edges of their skin that rub against things more often. This makes me not notice that i am constantly looking men and...
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This is a medically oriented question.

There's a certain vitamin supplement that when I take it leads to a mental clouding
(almost crippling), and a sharp elevation in heart rate and rhythm.

My guesses are I'm either severely vulnerable to sharp elevations in certain nutrients and my dietary patterns otherwise mask this, or my gut bacteria (SIBO) rapidly generate toxic compounds that cross the intestinal wall.

This is it, so you can read the ingredients.
http://www.pureencapsulations.com/multi-t-d.html
Haven't taken any for years....
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>>8198291
Sounds like an allergic reaction. Recent tests have shown that many supplements don't contain what they purport to contain. You might be allergic to some of the 'filler' shit that they put there.

Try different brands and see what happens.

Yes, you're my guinea pig. Do it for /sci/ence.
>>
>>8198299
I have allergies, yes. Soy, corn, whey, peanut, blueberries and cranberries, certain mushrooms. This supplement claims it contains none of these things, at least in a form that would be reactive. But yes, it does resemble a manner of allergic reaction, though an oddly specific one I haven't quite experienced otherwise.

I was my own guinea pig for years. Consistent failure historically probably would have meant suicide. At present I was drinking this juice "Vitajuice", but unfortunately like most...
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Yep. Reading the bottle it claims "free of corn, soy, shellfish, peanut, etc", but reading the product information sheet, most of its contents are derived either from soy or fermenting corn. It's not inconceivable something reactive, or a residual, is present as a contaminate. It does feel just like eating corn or soy.

Well that ruins my today / tomorrow.

Can we get an objective thread about dogs. Most other boards when people post about dogs they start meming doges or pupper bullshit.

What does /sci/ think of dogs?

Personally I despise dogs of all kind because I think they are unclean (shit on the floor if you dont let them out/trian them and lick/drool on shit)
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>>8198102
>not having a mind control virus
>>
>>8198102
You want an objective thread about of opinions?
>>
Dogs are remarkably intelligent.

Look at this one helping out his doggy buddy.

http://imgur.com/gallery/BwRjsbT

They are temperamentally almost human.

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Computer science Vs Economic degree ?
What is the pay gap and job growth, also the level of intelligence.
20 replies and 3 images submitted. Click here to view.
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>>8197919
If only there were websites specifically built around and researching the viability of various degrees...
>>
>>8197921
I read that, CS degree is becoming like a Law degree, many people with the degree and not enough job
>>
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>>8197919
>intelligence
>Computer science

pick one

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>have genetic stutter whole life
>have genetic baldness by age 21
>have genetic-disposition hernia at age 22
How soon will humanity find a way to "disable" these genes with science? I want to have kids but won't if it means they'll be subjected to this hell
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>>8197886
Stuttering may have a genetic component but it is treatable. Google "stuttering treatment."

Baldness does not matter. Shave your head. If your hair is going to leave you, get rid of it first. Embrace the shaved look. Grow some facial hair like a goatee and see how it looks.

I have no idea about hernias. Can't help you there, bud.

2/3 aint bad, I suppose.

We're not going to have genetic solutions for a long-time because genes interact in a clusterfucking way. You're going to have to take care of it yourself.
>>
>>8197886
Genetics thread ?

Good:

>6'1
>good face
>wide shoulders
>decent intelligence

BAD
>balding age 18
>myopia
>thin bone structure
>small teeth
>neck too long
>short arms and legs

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>>8197988
Actually something like 60% of people can't be cured. I went to speech and behavioral therapy all through middle school and high school and it didn't help me at all

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Does /sci/ into behviorism/behavioral psychology? What are some good free or low cost resources for learning more about behavioral psych other than >le pavlov's dog xdddd
?
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>>8197865
You could try reading B.F. Skinner. About Behaviorism is a good place to begin.

A textbook like Behavior Analysis and Learning by Pierce or Applied Behavior Analysis by Cooper would also be helpful.

How to Think like a Behavior Analyst by Bailey is probably your easiest way in.

After that you can look into behavioral therapies (DBT, ACT, FAP) or Relational Frame Theory for a theory of language (far better than Skinner's Verbal Behavior book).
>>
>>8197960
Thanks m8. This'll help me get a good start. Appreciate it.
>>
>>8197978
You're welcome. You can find some of those books on Libgen.

Also, behavioral psychology is appealing to scientific-minded people as it has basic principles (reinforcement, classical conditioning, matching law, etc.) that it is based on. Progress can be slow because of these limitations on conjecture and excessive unnecessary theorizing. But once it gets into an area, it dominates it.

Animal training is pretty much all behavioral psychology. The best outcomes for those with autism and learning disabilities...
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I realised a few days ago that all the stuff we call psychological and mental, are nothing more than physical responses of the brain.

in short, i want to know if this really means that any thought we have is a real, touchable thing within our grey/white matter?

Could we someday posess the technology to read and write to a mind via electrical or chemical impulses?

Is there anything i should or could read about this, that is not tinfoil hat level retarded, and not a white paper (as i am too retarded for that, didn't have much of an education, but am...
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>>8197803
Naw dog thoughts are magical
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>>8197803
Universities have things called 'textbooks' that contain information about a variety of topics, such as neurophychology.
>>
>>8197810
considering i stated the level of education, by saying i'd be too retarded for whitepapers, i think you could know that i have no reason to be found in any university, let alone their library.

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Can someone explain this?

>original thread for keks.
>>>/tv/71877502
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>>8197620
It means you always try to fuck the third hottest chick in the room.

Idiots go after the hottest, people who watched that movie the second hottest, which leaves the third at where the best odds are.
>>
>>8197620

the dude reminds me of myself in all the bad ways. im only a little bit as smart as him but all the way as artistic.
>>
>>8197634
He wasn't autistic. Dude was schizophrenic.

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You spergs really rhink you can be professors? You know 90% of the job is writing, corresponding with other scientists, giving large talks, and teaching.
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>>8197511
I'd love to do that.
>>
>>8197511
>you can be professors?

Nope. Finance here I come.
>>
>>8197511
but a big part of the job is telling people their work is shit. That's like awesome.

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What does /sci/ think of this?

>The researchers found that recipients of female donor red blood cells were associated with an eight percent increased risk of death (from any cause) per unit transfused compared with recipients of male donor red blood cells. For example, for a recipient that received six units of red blood cells, this would translate into an associated risk of death of 36 percent for recipients of all-female donor blood compared to 27 percent for recipients of all-male donor blood one year later.

>The...
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>>8197361
Reminder that blood you donated could be in someone's boner right now.
>>
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>>8197361
>Researchers find vampires luv young girl blood and whip up disinformation to save it for themselves
>>
I've always wondered if the blood I gave (I've donated 18 times now) ended up being useful at all, but these numbers sound frighteningly high

There's really more than 1/3 chance that getting blood from a female will kill you?

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Can we talk about the second law of thermodynamics? Because I don't quite see why it should hold.

As far as I understand it, it is merely a a convenient assumption concerning the geometry of the state space. However it is well conceible that the actual global state space does not need to have this property. So where's the evidence for this global assumption? Lack of counterevidence is not sufficient.
29 replies and 2 images submitted. Click here to view.
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I'm not an expert, but doesn't the evidence come from observing the evolution of phase space for a fuckton of systems?
>>
>>8197106

Monkey poster kys
>>
>>8197106
It only holds true for isolated systems. What you should be asking is why we consider the universe a closed system.

Oh, also, science can't prove shit, can only disprove, and laws are observations of the universe, distinct from theories yo.

Is the universe flat?

We can't see beyond a specific point. Why is it at ALL points in a circle that we can't see beyond?

Because that's the edge of the universe. The universe is one giant spinning top. The geometry works out just the same, as calculated by psychisicts.

The universe expands because the top is spinning (centrifugal force). The universe matter gets flung out further and further as the top spins.

We can't observe beyond the edge of the top because the universe hasnt spun that far out yet. We don't see the light...
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>>8197084
Here is your (You)
>>
>>8197100
is this like the inverse of self /thread'ing?
>>
>>8197114
no

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Hello, i'm looking for someone who both knows the theory behind calculus/derivatives well and is good at explaining math stuff to people who arent fluent with the set theory stuff (symbol notation or w/e).

Sorry for butchering your terminology, but I was wondering why derivatives and their symbols can be counted as... scalars and exponents?

What i mean is you can move dx around ie when doing u sub dy = xdx or dy/dx = x.

Also i guess with partial derivatives and all of maxwell's equations for things like physical chemistry.

And also when...
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>>8197041
Derivatives are operators, like +,-,×,÷ etc...

There's formal proofs that show why you can move them around like terms, but it would be too tedious, and unnecessary to show that every single time you work a problem, so you just use the shorthand
>>
>>8197041
>can move dx around i
dy and dy are like small numbers that shrink away when push comes to shove (in certain 'calm' situations)
The theory why this actually works is complicated (see 'Hyperreal number')

say y = x*x

when y changes by dy, x changes by dx
so we get

y + dy = (x + dx)(x + dx)
= x*x + 2*x*dx + dx*dx

when dx gets small, dx*dx is a second order smallness and can be discarded

y + dy = x*x + 2*x*dx

remember,...
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>>8197132
>dy/dx = 2x
Heh, that's pretty good.

y = sinx
y + dy = sin(x + dx)
y + dy = (sinx)(cosdx) + (cosx)(sindx)
y + dy = ycosdx + (cosx)(sindx)

hmm...

Well, looks like that's as far as the theory goes. Back to real calculus.

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Does anyone here have a good stats background? supposedly, this study http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0141854
finds no correlation between community level violence and police shootings. this would disprove the idea that more police shootings happen with black people because black people commit more violent crimes. however, I don't really know how to evaluate the methods because the math in this study is beyond me.
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>>8196716
>no correlation
correlation is a number
>this would disprove
this would "disprove" nothing
>I don't really know
That is correct, you don't.
>>
>>8196862
Respect for maths isn't value.
>>
>>8196866
psychobabble isn't value

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If I pull this will I die?
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No. Bad quality rope.
>>
it would be extremely painful
>>
>>8196680
it would be extremely painful

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I'm looking for a good set of lecture notes or just notes in general for undergrad real analysis. I'm self-studying out of Rudin and I'd like to supplement my learning. The ones I've seen on google are either 1) shit or 2) grad level. Any recs?
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>>8196590
just grab tao's book (spells out details) and pugh's book (difficulty of problems unbounded)
>>
>>8196646
This is the correct advice.
>>
Does anyone have links to downloads of these then? Oh idk if this is the case with these but I really wanted something that develops basic topology early on like Rudin does

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>liking the IDEA of knowing science and mathematics

How do I move my mindset to wanting/actively seeking to know science and mathematics? Do you guys really know what I mean? I like the IDEA of learning all of it, but when I open a book, I don't last more than 15 minutes, yet I know it's important to know this and I have this pseudo-wanting to know it because of how smart it all is. I feel like it's because I'm not in university and I feel like it's pointless for me to learn it because it won't be "counted"...
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>>8196565
I just want to be one of those guys. Scientists and engineers just seem like the smartest people to me. They have all of these answers, know how to solve all of these problems, and I want to be that. Maybe that's partially the reason?
>>
Doing some type of online/home schooling course helps as you have set targets and deadlines instead of picking up a book and reading when you 'feel' like it.
>>
>>8196565
Watch lectures online.

http://ocw.mit.edu/courses/

Is there a way to detect when an electric motor faces increased resistance to automatically shift in a gearbox?
12 replies and 1 images submitted. Click here to view.
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>>8196447
>Your shit Rick & Morty drawing.
Rick's jaw looks like homers does.
>>
>>8196536
https://www.youtube.com/watch?v=7IVJVTUNl0I
>>
>>8196447

Measure the output of the motor and the input and then extrapolate the resistance.

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Will we ever have a perfect performance - enhancing drug? Something like adderall, but that doesn't make you risk screwing your brain over? Or in general without negative side effects?
I'm thinking something that labs would start distributing to their scientists, or that could be sold outside classes to prepare for lectures.
Is this a possible utopia or will there always be drawbacks of some kind?
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>>8196159
we have it, its called modafinil, the stuff is magic, pretty much the only reason i got a first in my bachelors
>>
>>8196207
when you come off of it, you are worse than before
>>
>>8196207
read more about it online, its a placebo at best.

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>nowadays military drones are evolved, not engineered (http://www.genetic-programming.org/sp2003/Marta.pdf)
>they most likely include neuromorphic chips (or they will very soon)

How do you feel about sending an actual form of artificial life to fight and die in a human war? Will the robots be pissed at us for sending their brothers to die?
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>>8195832
>I dont know what genetic programming is
Also
>>>x/
>>
>>8195841
what the fuck are you talking about?
>>
Related: https://www.youtube.com/watch?v=EKt_zQHQ-0k

is there a way to learn science without much money?
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Yes.
>>
>>8194897
hhhow?
>>
>>8194898
Alright, I'm just gonna tell you a very simple one. Look up a university. I don't know if all do it, but for most, their degree requirements are publicly available. Of course, some of the stuff on there is useless or ambiguous, but a lot of the core stuff is useful. Here's the UCDavis computer engineering requirements as an example. http://catalog.ucdavis.edu/programs/EEC/EECcourses.html Basically, what you do is look at a class, and look at the topics it covers. Now go to google and youtube, and look...
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Is Stephen Hawking so beloved because he's a success story or is he just a very good writer?
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>>8194602
>SUCCESS STORY
>SUCCESS
>STORY
>>
>>8194602
I like him because the articles on black holes and stuffs at his websites are good.
On the other hand, fuck that face give me nightmare everytime
>>
>>8194607
I asked someone reading one of Hawking's books her reason and that's the answer I got. Tbqh I think a lot of his readers are pseudo intellectuals

What functions does something like this? Thanks in advance
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>>8194131
https://en.wikipedia.org/wiki/Sigmoid_function
>>
>>8194134
l need that the steepnest varies in function of a like pic related, the smallest a is the more step the function is and the bigger a is the less step the function is
>>
That looks like an arctangent function compressed to a range of (0,1)

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Would it theoretically be possible to engineer a virus that targeted only men or only women?
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>>8193833
Yes.
>>
>>8193833
If it was activated by X/Y chromosomes or some shit, then maybe.
>>
>>8193833
No.

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I want to get a headstart for university this summer, do any of you have any advice on books for calculus and other stuff which goes up to third year?

Don't be afraid to link me to books which require high standards, I've already done a lot of calculus in school (I, II, III) and want to go to the next level.
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>>
Spivak
>>
I always recommend james stewart, most of theorems are proven and take you to the next level, exercises have a varying level of difficulty too, for other subjects that involve calculus like numerical analysis i recommend dennis zill
>>
Principles of Mathematical Analysis, Rudin and Linear Algebra Done Right, Axler.

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What will roads of the future be made of?

My vote is on glass, but I can't figure out why we aren't doing this now (well we are somewhat transitioning to glassphalt):

Tiers:
1: glass
2: glassphalt
3: bituminous asphalt
4: concrete


Glass:
+durable
+negligible thermal expansion coeff
+cheap? I mean, it's sand basically
+less potholes
+easily patched? just remelt the portion?
+aesthetic and can add colors/patterns
-can get slippery when wet, less permeable, but you can just stamp a texture on it, make some...
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>>8192728
>What will roads of the future be made of?

Asphalt. It is nearly 100% recyclable, durable, coarse, and dirt cheap. There is literally no reason to switch to something else as our primary material for roads.
>>
>>8192731
except its not environmentally friendly

also I guess it depends on where you live, but where I have been, the streets are a horrible mess of bumpy, patched asphalt. Also asphalt streets need to be repaved more frequently than glass one would.

Bituminous asphalt is made using oil, which we are also trying to steer away from
>>
Glass will never be used on roads. See the other guys post


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