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Archived threads in /sci/ - Science & Math - 170. page
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What's the scientific explanation for top female chess players being weaker than top males?
>>
White/gray matter ratio
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>>8308319
we are not equal. check out different belll curve distributions.
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>>8308319
emotions get too much in the way the further you plan ahead.

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/sci/

is it true (pic)?

is cortisol responsible for being degenerated looser virgin?
>>
>autistic losers just got another thing to blame their failures on

great.

next up: free will can't exist in a probabilistic universe

https://en.wikipedia.org/wiki/Free_will#Physics

discuss
>>
Virgins now literally blaming mommy for never hugging them.
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it's pretty garbage throughout

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How long did it take you to learn LaTex /sci/?
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>>8308225
8 years and still learning, m8
>>
how do i learn this shit, any resources?
>>
>>8308225
Maybe a few hours, but I obviously forget a lot of lesser-used commands, and am still learning some formatting.

But to get proficient enough to publish? Like a few hours.

>>8308316
Install it and type shit up. Doofus.

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Is fourth dimensional stuff only math concepts or do you think there is an actual physical 4th direction in space we can't see.
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>>8308214
>>
i think there are 10 spacial dimensions my man
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What is time

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What does /sci/ think about trying to solve difficult problems by subconsciousness /being in meditative relaxed state and just letting your brain(?) do all the hard work by itself just like Von Neumann. There was also another professor who almost fell asleep and solved a really difficult problem but can't remember his and in case I find it I'm going to post it.
>>
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>>8308201
Can you post some references? This is quite fascinating but /x/ could be better at this than /sci/. I'm into meditation now. First thing I want to improve is memory. You know when you experience crisp dreams? I'd like to do that during the day with real life material like textbooks. Anapanasati coupled with mindfulness during the day could be key to achieving good meditation sessions.
>>
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From:

Mathematical Apocrypha Redux: More Stories and Anecdotes of Mathematicians and the Mathematical (Spectrum)
by Steven Krantz.

Posted recently by another Anon.
>>
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>>8308382

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At what point does a human being become "conscious"? Think of the phrase "I think, therefore I am", when exactly does this happen?
>>
https://en.wikipedia.org/wiki/Sally%E2%80%93Anne_test

Perhaps, since you can then realize that you are your distinct "self", and that the other entities around you are their distinct "self".

However this is a very vague and philosophical topic, because the word "conscious" is a vague term.

> What was even the point of this
>>
>>8308155
You are really misquoting Descartes there.
"I think Therefore I am" is actually to posit the metaphysical existence of ones self, not as a realization of ones consciousness
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>>8308173
>Perhaps, since you can then realize that you are your distinct "self", and that the other entities around you are their distinct "self".
That's sense of self not consciousness.
Source: on shrooms you're still consciousness but you feel no distinction between yourself, others, or the universe at large.

[soiler]it's interesting because this implies that this feeling/perception (of distinctness), is a mere product of the mind -> it could...

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There have been numerous experiments involving bugs to prove evolution on a micro level. This doesn't really prove evolution as we know it though.

What if we took a bunch of fruit flies (or a similar, even faster reproducing bug) and put them in a very resource starved environment but we put plenty of resources in a lake like watersource in that same environment.

When even a single fruit fly develops, somehow through pure chance, the ability to survive underwater and reproduce, evolution would be proved.
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>>8308062
you'd have to wait a long time, famalam
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>>8308070
"Female fruit flies are capable of laying hundreds of eggs within their brief life spans. Eggs are most commonly laid on moist, fermenting food masses such as overripe fruit and vegetables. Within 24 to 30 hours, fruit fly eggs hatch into larvae known as maggots. These maggots feed on the fruits within which they were laid.

Within one week, maggots burrow through the decaying matter and molt. After five to six days, larvae move to a dry surface and transform into pupae. A few days later, adult fruit flies emerge. Fruit flies become sexually active within two days of emerging as adults. Female fruit flies may mate with several males and store sperm for future use."

Lets just assume you have hundreds of thousands of fruit flies, that should be hundred of thousands of new life cycles every day.
>>
>>8308062

fruitflys have been used to prove mutations are hereditary but what you are suggesting would take a very long time with extreme dedication just to find out its hazard to force evolution

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Is there any kind of evolutionary advantage or niche to having autism? I hear all the time about how we 'need' people with autism because they're awesome savants who are computer geniuses, but the majority just seem to sit inside and play Minecraft. I think it's just something that parents of autists tell themselves to ease the pain of realizing that their child will never fit into society. I don't really see an evolutionary advantage to something that inhibits your ability to communicate with your fellow man.
>>
it's not genetic its simply a result of ROASTIES over the age of 35 having children

I wish I could kill my mother for being a selfish bitch and deciding to have a kid (me irl) just before menopause when her eggs were rotten condemning me to a life of anime and minecraft
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>>8307675
I don't think people on the spectrum should have children. If the kid is born male, he's doomed to a lifetime of pain and solitude unless he's stunningly handsome.

t. son of an autist
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>>8307660
It might have been a lot more useful in the hunter gatherer times humans evolved in. Taming wild animals instead of Pokemon. Building things in real life instead of Minecraft. Video games were a mistake; they're like crack for Autistics.

>>8307693
Your life will get better anon.

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I feel like I'm taking good notes in my physics class, but then when I start working on the homework, my notes feel very inadequate. How do I take better notes for this class? I feel completely and utterly lost, and going to office hours only helps until I start on the homework.
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>>8307647

the

fucking

textbook
>>
The first three semesters of calc-based physics can be done just knowing the formulas. There's a small amount of intuition necessary regarding how you're supposed to recognize how the word problems tie into the formulas, but it's almost entirely plug-n-chug.

Those formulas are EVERYTHING. Learn them and understand what they mean and you'll realize physics is the easiest STEM
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>>8307670
i do read the textbook, but i have the same problem
i feel like i'm not understanding it, i can follow the math, but i don't get where it's starting from

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How did this go from being about quantum physics and abiogenesis to being about trannies and niggers?
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wat
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>>8307604
not op but found the commercial I saw a few weeks ago. It's pretty much sjw schlock

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>>8307628
Before I'm branded a numale SJW jew marxist, may I ask why it was "sjw schlock"? I couldn't hear all of it because the sound was shit quality, but from what I discerned, the trailer was all about asking the questions, they didn't state anything outright. Since when is asking questions SJW?

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If everything is made out of atoms and electrons which are constantly moving at incredible speeds, how come I don't feel any movement when I put my hand on my table?
>>
Try to keep your hand still in the air
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because it's all bullshit

Science and mathfags literally just make shit up and obfuscate and dress it up sophistry and then turn around and say only smart guys can understand it

It's satanic
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oh no, we've been found out

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I stopped caring about Inter-universal Teichmuller Theory when I was introduced to the concept of $/Theta^{\pm ell}NF$ Hodge Theaters . What a crock of shit. If the spectrum of your algebraic number field can only be represented by inventing systems of Frobenioids that can't exist, like some kind of math deity , then you are fucking wrong and the math is flawed. Same for log-theta lattice solutions that basically say "the correct category is whatever the correct category is". Thats what the math said transcribed to words but god forbid if i wrote...
>>
>>8307564
inb4 some newfag takes the bait and swallows the pasta
>>
ok, there's so much wrong with that post

i am going to type a lengthy reply, don't go anywhere
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>>8307607

How far is Proxima Centauri??

How long a space shuttle travel to Proxima Centauri?
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we need a warp drive engine.
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>>8307531
4.243 light years.

It would take an infinite amount of time because the space shuttle is no longer in service. Neither can the space shuttle obtain solar system escape velocity.
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>>8307531
>How far is Proxima Centauri??

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Let's pretend I have a girlfriend who bought me a locket that can go on my keychain, however, my keys have been scratching the paint off of this locket.

See picture

Now let's assume for the sake of the argument and because I'm bored, that I'm paranoid and I'm worried about lead poisoning.

How could I.....
1. See if the metal was lead?
Or more likely,
2. See if the metal was made of an alloy containing not lead?

Assume I cannot destroy the locket to test it, for sentimental reasons.
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>>8307500
density
>>
who cares, lol? people have been living in lead houses for decades and nobody's died lol
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>>8307500

don't be a pussy

lead is not cyanide. If you don't have a rash it's fine.

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What exactly is it about diamonds that make them the hardest metal known to man?
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its chemical configuration
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>diamonds
>metal

kek
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>>8307494
Its all about quantum metallicity. When the left-quark induces spin in the q-space it makes it increase in hardness exponentially

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any opinions?
>>
Fuck off

>>>/x/
>>
has no electromagnetic applications and those youtube videos you see are fake.
>>
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OP here apologizing profusely

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Does the speed of sound depend on the amplitude of the pressure wave? Or is there a damping effect between the molecules? Imagine a nuclear explosion, its pressure wave should instinctively move faster than ie voice.
>>
>>8307249
In an ideal gas the spread of sound is dependant on temperature. The pressure wave behind the blast may increase atmospheric pressure but the effect would be minimal. The speed of sound is faster in hot air rather than cold air, however it is conceivable that the blast would strike a target near ground zero before the sound does.
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>>8307249
Sorry. That was meant to be speed not spread...>>8307249
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>>8307271
Can it be explained in layman's terms how exactly will the speed of outgoing molecules from the ground zero not affect the speed of pressure wave ?

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With the recent discovery of Pliobates, is this book still accurate, or has it now been rendered obsolete?
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dicks out
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>>8307360
Indeed.
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>>8307360
>>8307411
Worst forced meme

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Could someone explain what time is and how time dilation works? How can time be relative depending on the position/speed of an observer?
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>>8307212
Is time a lebesgue measure?
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>>8307212
It's an illusion
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>>8307212
Time is just one dimension in 4d curved space.

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About to start a Calc 2 class. I passed Calc 1 by the skin of my teeth over a year ago and remember very little.

How fucked am I?
>>
lol americans,,,,..,.,.,.
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>>8307066
Do you have Calc 1 in uni in America?
If your pic is of Calc 2 class, you must have some easy af universities.

t. euromaster
>>
>>8307091
Of course Calc 1 is taught. What kind of ass backwards "university" doesn't teach it?

Is Yourbrainonporn bullshit? Basically, the longer you masturbate, the more extreme the porn you watch will become. Apparently, we exhaust our dopamine receptors when we masturbate for long periods of time and we need new intense things to help us get off. Can porn really warp your mind that much? Does nofap really help cure you of your weird fetishes?
>>
That's bullshit. I'm 30 and have been fapping since I was 13 and the weirdest porn I ever jerked it to was light bdsm. And even then that didn't last and I abandoned it pretty quickly when i realized it was nothing special. Vanilla porn still does it for me.
>>
>>8306973
You're lucky. I'm 21 and I get soft in a second if I quit tugging it
>>
>we exhaust our dopamine receptors

This is horseshit. Without dopamine receptors you wouldn't be able to move or think, it would be like having Parkinsons.

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My Calc class uses Stewart. Should continue using apostol and just use stewart to do the problem sets or should I just switch over to stewart?
>>
>>8306956

Use whatever it is that your professor happens to be using, and concentrate on getting the best grade possible, right now. Stewart is perfectly fine for a first jog through calculus, the hate that it gets here is partly a meme, and partly because it is not as autistically rigorous as the others.

By all means feel free to enrich yourself later using some other texts which have superior motivation and exposition (good on you for wanting to do this), but quite frankly you're going to be running through...
>>
>>8307023
+1
>>
>>8307023
>Use whatever it is that your professor happens to be using, and concentrate on getting the best grade possible, right now.

So much this.

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How do you call real numbers that are not part of any solution of finite set of any type of equations that consists only rational numbers and the "size" of equation is finite?
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>>8306941
Irrational numbers?
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>>8306941
irrational numbers.
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Transcendental?

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Are you excited for the singularity?
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>>8306728
can't wait for tides of numenera to finally finish.
>>
>>8306728
Not really.
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>>8306728
Explain to me an idiot the Singualrity. When is it suppose to happen? Will I be murdered or seriously crippled when I did nothing wrong, but try to live my life? What will I personally gain from this?

I'm being serious.

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>http://www.centauri-dreams.org/?p=36248
>strong signal in the direction of HD164595
>recommend scientists should now permanently monitor this HD164595
>if it came from a multi-directional, isotropic radio beacon, it would have to be produced by a Kardashev Type II civilization
>If the signal was targeted directly at our solar system, then it would be of a power available to a Kardashev Type I civilization

>>
Scientists desperate for grant money
>>
>barely passes 0.9
Just a space fart.
>>
Is this where my tax money is going?

Maybe you too could have been a great mathematician if actually focused on math instead of chasing tail.
>>
His son looks like him.

His daughter is pretty cute in a non pedophile way.
>>
>be great mathematician
>marry an ugly chink hambeast
Her arm is twice the size of his for fuck's sake. I guess that's what they call love.
>>
>>8306649
>I guess that's what they call love.

No

I guess that's what they call 'Son I know you have your field medals and your nobels and your what nots but you have to marry. My friend XialOnHuaWonDesunesugoidesu's daughter is single and she got drunk only once in college and was fucked only by 50 people that night. Pretty much a virgin. Take her and give me something to actually be proud of you fucking autist.'

Or maybe he actually isn't shallow......

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According to Science, does life after death exist?
>>
1
This reality consists of physical reality (space, matter, energy, and the laws of physics) and consciousness. It is clear that there is a link between the two. By simply willing it to happen, we can make our bodies move, interacting with and changing physical reality. If you pick up an object, you are using consciousness to manipulate physical reality. It is also clear that physical reality can affect consciousness. If your body is injured, you consciously experience pain. If you stand near a flame, you consciously experience the sensation of heat. This suggests that one...
>>
2
The closest thing to a physical explanation for consciousness we have is neurons. However, neurons control our entire central nervous system, not just our brain, and they are still there when we are unconscious while sleeping. Our brains make our bodies breathe even when we are not thinking about it and even while we sleep. Our brains turn information from photons into visual images. They do a lot of things that we are not consciously responsible for. Neurons are the basis of a body's central nervous system, not of consciousness. The only evidence that a brain or neurons...
>>
3
This realization, however, leaves another, arguably more important question unanswered: What happens when we die? This question relies in large part on whether or not we, as conscious beings, exist forever. To answer these questions, one must consider what reality really is. Of course reality conists of physical reality and consciousness, but physical reality is subjective to consciousness. Objective reality, then, is essentially two things: Consciousness and time. However, time is not really a thing, so it might be more correct to say that objective reality is only consciousness....

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Okay so, I really fucked up that last thread, I wrote it wrong because I was trying to cook something and write it in between cooking.

So, I have a beef with Michio Kaku. He says that because there's quantum uncertainty, that this somehow proves that human beings have free will. First of all, what does he know about how consciousness works? It seems silly to me to think that somehow because there's this theory of uncertainty that that means human beings are responsible for their actions. How does he know that human beings are responsible for their actions, does...
>>
The next part of the problem I have with Michio Kaku, besides the fact that he made this video only 1:30 minutes long and he somehow tries to play it off like he's explaining away one of the biggest questions in philosophy, but he doesn't elaborate on the points that he's made very much and there's so much unanswered. I personally think it's bullshit, what he's saying about uncertainty in quantum mechanics. Because the universe still operates according to newtons laws, if they didn't then clocks wouldn't work. The universe is obviously...
>>
>Michio Kaku
not a real scientist

>because there's quantum uncertainty, that this somehow proves that human beings have free will
he's wrong

now fuck off
>>
>>8306537
My curiosity is not satisfied.

What do you plan on doing with your math degree?
>>
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detect dumb mistakes on .jpg pictures
>>
>>8306535
look at the left side of the image.
>>
>>8306520
I wanted to become an actuary, but as soon as I transferred to university I discovered that the guy in charge of that program got depressed and stopped doing it because a rumor got started that it was shit.
So now I guess I'll just double major in Nip-speak so I can at least translate shit for a few dollars more if I can't figure out the actuary certs with just general Math science knowledge.
Maybe someone with more backbone will restart the program who fucking knows.

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I just had what I imagine isnt a new one. But bear with me.

If you could generate an assload of neutrinos could effectively use them as the stuff in a camera.

question /sci/, how to make many neutrinos?
>>
You would need a particle accelerator, a way to generate protons, and a target like beryllium. Also, neutrinos are weakly interacting, so chances are you couldn't use them for anything.
>>
>>8306434
Whats the math about having a neutrino bounce back into a sensor?

Im talking lots of neutrinos here, I dont thin kyou understand.
>>
>>8306439

Disillusioned individual take a step back; what are you using scientific theory for?

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