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Archived threads in /sci/ - Science & Math - 31. page
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>pic related

It didn't appear to provide a scientific basis for morality, which was disappointing.

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>>8510927
Science ensures the accuracy of predictions. When we propose actions in a negotiation, we do so believing that these actions will result in something satisfying some values we hold. In this way science helps us negotiate.

Also basis of morality don't real.
>>
Never read it but I hate when books do that.

I think science can address ethics to a degree if you base arguments on sociology, animal behavior, and evolution and consider these as scientific foundations. Otherwise, I don't think "hard" science is anywhere close yet to tackling human behavior.
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>>8510946
It's one of his better books, Sam is highly educated. Not sure if it was one of his books or some other books but morals and ethics in modern society are just an extrapolation from the original tribal hunter - gather life, family first, friends second, tribe third. Religion just took it all to the next level for better or worse, I am thinking worse since I like to think independently and outside the box a lot. Sam shits on the Abrahamics a lot but I find people who do this were usually indoctrinated with one flavor...

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I don't know if this is the right board, but I'm trying to get good at chess. Does anyone know any tips and tricks to help me improve? Or good chess books / tutorials?
>>
>How do I get good at X
Do X.
Play chess.
Play a fucktonne of chess.
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>>8510843
Tactics. Everything else comes easily after that. Beware that tactics require you to work hard.
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>>8510843

There are no shortcuts, if you want to get gud you have to put in the time.

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>he uses i instead of j for the imaginary unit
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>>8510694
Fucking layman man.
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>there are people on /sci/ who use superscript and subscript
fucking children
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j is used only in EE.
Are you retard OP?

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Anyone here in epfl? Did you take the admission exam route? Is it worth the hussle?
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Math major at EPFL here, I did not do the CMS (the "exam" route) myself but I have two friends who did. They're now second year chem majors and they're doing quite well. What section do you want to get in OP? It really depends on what you want to get into. It's worth it though, the university is very good on multiple levels. Of course you will still get a few professors who obviously don't want to teach, but it's generally very good. If your plan is architecture, I suggest really thinking it through, because it's insanely hard.
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>>8510976
I'm not completely sure myself. I was thinking either chem, CS or EE. Did you friends take a prep course? They seem pretty expensive(10k+) and not entirely necessary.
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>>8510976
>architecture is insanely hard
more like extremely time consuming, those fags are always stuck in their workshops. But if you look at their actual courses, (like math courses for example) the difficulty is pretty fucking low compared to other sections.
pic related, it's the distribution of passing and failing student during the first year, yellow means "passed", dark grey means "failed exam", grey means "abandoned", light grey means "abandoned...

What's the most mathematical programming language?
Prolog for logicians.
>>
Maybe Python
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>>8510556
this

haskell is for failed mathematicians and failed programmers
prolog is long ded
matlab is for dying professors

python is the future

scipy tensorflow theano pandas matplotlib sklearn keras skimage etc

can't fight the power. rip everyone else

besides R which beats python in data visualisation
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>>8510569
OP's "mathematical programming language" is super vague, but I'm pretty sure he didn't intended it to mean the language most practical or useful to do some work that involves some stuff labeled math. Like statistics with the pandas package.

One could argue that (assuming I'm right about what OP meant) a "mathematical programming language" is one that has semantics within a common setting taught and/or understood by mathematicans.
https://en.wikipedia.org/wiki/Semantics_(computer_science)

Then...

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Is creating a sentient android possible?
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>>8510431
define sentient

define android
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>>8510433
>sentient
able to perceive or feel things.
>android
a robot with a human appearance.
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Don't see why not. We know sentient beings are possible, so all we need is a way to implement it using the hardware we have.

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Mine is glutamate
>>
glutamate is the best
>>
I like glutamine

glutamate is for idiots
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i prefer gaba

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Is studying Biology a meme? Can you actually find a job afterwards?
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It's a popular degree because it includes most of the pre-med requirements, and it the easiest degree in pr-med programs. Why take harder Chemistry or Physics and have to take extra courses?

The problem is, not many people get into medschool, and use their Biology degree as a backup, oversaturating the field. If you want to do Biology, seperate yourself from the med school hopefuls by doing undergrad research, which none of them do.
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>>8509223
how do you get into undergraduate research? do you apply for a grant or assistant-ship with one of the profs? or just ask if they're looking for help?
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>>8509167

Absolutely this OP

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I have been wondering for many many years, how would we know how others see the same colors, we teach that the color they see is a specific color, so they will always see it that way, but what if they see something like green as purple? We could never prove or disprove this in any way, as we cannot see exactly what other people see, and even if we did we might still see it the same as it could be a difference in the eyes.
>>
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>>8508143
Okay I see that now, but what if every brain percieves colors in a different way?
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>>8508150
fuck i dont know honestly

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Didn't see one in the catalog.

Diffeq problem here:

How do you know to place these Rs into this problem? Above the black line is the first example problem I did, so I just figured "oh, U must just be the product of X(x) and T(t)," so I tried doing the second problem like that only to see that they took a completely different route. How do I know to do that? I feel like I don't get what U is on a conceptual level.
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>>8504277
search sqt, still 50 posts to go
>>8495521
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>>8504283
Shit, hopefully this'll at least get used when that thread fills so that I'm not wasting space.
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If something works under bad conditions, it will work under improved conditions.

E.g. if I can run at least 15 km/h, I can also run more than 10 km/h.

What's this principle (perhaps fallacy) called?

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How do we solve the fat people problem, /sci/?

Most fatties know on some level that consuming less calories and being more active will lead to weight loss, and yet it hasn't achieved much
>>
There are studies that show that, most people, once they reach a certain level obesity, can never go back to a normal weight.

The ones who do are basically miracles.
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>>8513401

1) If you are over 18 then every time you go to the doctor your weight has to be recorded and that information should be attached to your name and uploaded to a government database

2) Establish a maximum healthy weight

3) If your recorded weight ever surpasses the maximum healthy weight then you will be contacted in some way or another by the government and be told that you have 1 year to put yourself back to the maximum weight and your name will be added to a list with the date...
>>
Remove the car park for every food shop and put tire shredders at the entrance to stop them using mobility scooters.

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why can't I kill my sex drive and longing for romantic relations?
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We were born to breed. If you distill it down, we're driven by just two impulses: survival and reproduction. You kill that, you kill half of what you are.
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Those are two separate things.

The emotional longing goes away when you fall in love for the first time and get your heart torn to shreds by someone you wanted to be with forever.

The sex drive never goes away unless you take anti-androgens or castrate yourself.

Best solution is to just jerk off quickly in the morning so you can concentrate on your work. Otherwise wear a condom every time you have sex and never believe a word a woman says.
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>>8513152
The emotional longing can eventually go away even if you don't get your heart broken. It just takes longer. It's actually one of the few real ways that men and women can become friends.

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Herro. I have a quessschtion.

Since the earth is moving at 30 km a second in it's path around the sun, why doesn't the iss crash into earth when they are in front of the path of the earth?

iss altitude: 330 to 435 km
iss speed: 7.66 km/s
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>herro
>>
>>8513027
s/they/it although i suppose the same point stands for sattellites...
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>>8513028
>autism

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Is Time a dimension or what? I'm trying to tutor and explain to my friend about how the higher the gravity is, the slower the time due to gravity bending the space around it therefore also affecting stretching time.

Enlighten me /sci/
I don't wanna be wrong and embarrass myself on my friend.
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yes
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>>8512783
>Is Time a dimension or what?

It's a scalar.
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>>8512783
The whole "time is le 4th dimension xD" shit is a bit of a meme bu it is a dimension in the sense that it can be used to describe physical change independently of the three spatial dimensions, but it's not something we can freely transverse (yet?) like x, y, and z.

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Is there an evolutionary cause? Is it genes, or is it upbringing?

I'd like your thoughts on this, /sci/.
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>>8512243

i think you know what people are going to say... both... in all likelihood... don't know any research on this but yeah...

i think more interesting is asking the question "what is laziness?". how do you classify or define this behaviour in the context of the brains function and the computations it performs? How do you distinguish it from other categories of behaviour we have that are similar or share similarities, both in expected and unexpected ways?
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>>8512253
>brain computations

DUDE THE BRAIN ID AN ANALYTIC ENGINE LMAO

the closest thing you can say about the brain is that it's approximated by a tm in P with an oracle in NP, which represents the qualia of the soul, but even that is wrong because the brain doesn't simply perform computations
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>>8512243

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I had a discussion with my friend regarding an old WOW quest from 2007. He remembers it as expertly crafted by Blizzard to hide the grinding of mobs for reputation into smaller sub sections, but I remember it as a nasty grind. What we can't agree on is the amount of mobs a player had to kill to do the quest.

I arrive at 1107 mobs. In other words, each mob is worth 8.125 reputation.
He arrives at over 18000 mobs.

Who's right or are we both wrong?
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>>8511118
With each mob giving 5 rep and a perfect 2/5 mobs dropping stones you need to kill 334
>>
1667

rep / mob = 5 + 0.4 * 25 * 1/25 = 5.4

9000 = x * rep / mob -> x = 9000 * mob / rep = 9000 / 5.4 = 1667
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>>8511138
got the same thing

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what would it take for CS to be a serious subject?
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>>8508472
>>
solution to P=NP
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>>8508472
When the people who study it stop believing that they're smart enough to study other fields of science and math.

So many of these faggots I know are """""""autodidacts"""""""""" who think they can learn anything just because they were able to learn a programming language all by themselves. You're not smart. Fucking kill yourself.

DARK PHOTONS
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They realized the memedrive works and now have to come up with an iimaginary explanation to not make them look stupid lmao
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whats really funny is when Undergraduate 1st or 2nd year non-physics students try and tell PhD Physicists with 30 years of experience how to do their jobs
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>>8508447
Physicists are so dumb lol. I see dark photons all the time! JUST TURN OFF THE LIGHT LOL

Mine are almost all metals:
(no particular order):
Iron, Nickel, Lead, Silicon (metalloid), Carbon (elemental, glassy Carbon version) and to a lesser extent, Aluminium and Copper.
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>>8507717
Inspect Element is my favorite

but its probably silicon, not because of le computer science (I hate straight-up, programming it feels mindless, but I like shit in the vein of Matlab) but because it looks cool when pure and like its what rocks are made of.
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>>8507717

Suprise.
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>>8507717
My favourite element is the autism particle

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>Come from a family that has an income of $250,000+ >Father is an MIT mathematics professor >Mother is a Harvard Psychology professor >Father teaches son how to do calculus in elementary school, teaches basic abstract algebra in middle school, and by the time they are in high school they are enrolled in MIT taking all the undergraduate mathematics courses >By the time they graduate high school they took Calculus I-III, Linear... Comment too long. Click here to view the full text. 178 replies and 23 images submitted. Click here to view. >> >both parents aren't brainlets and thus the son isn't a brainlet either eh I'd definitely call him privileged but not in the liberal sense of the word (although of course that applies to his case as well) >> leftists like diversity except in the intelectual sense >> >>8506594 Take another high IQ kid >High IQ kid like kid in OP >Parents IQ 90-100 >Family income$25,000
>Attend rural highschool
>Highest math class offered is Calculus I
>Scores average on SAT (no tutors and no one in the school really knows what the SAT is/how to prepare for it)
>Gets into a below...

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>tfw every time you explain the scientific method, you are actually engaging in a philosophic discussion in which you are defending empiricism
>tfw science is just applied empiricism
>tfw even if you hate philosophy, you are unable to escape its clutches, regardless of whether you know it or accept it

Feels good to be a scientist and philosopher.
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>>8504572
empiricism is truly the best thing philosophy has produced. shitty statisticians can get fucked.
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>>8504572
>every assertion is fundamentally untenable
>except that one
>and that one
>and that one
>...
>n
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>>8504572
>i, too, write gay Humian fan fiction

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Does anyone know what the source is for the clearly bullshit claim that the EM drive can get to the moon in 3 hours when it literally can't produce enough thrust to even lift a tiny fragment of its own weight?? All the clickbait news stories keep repeating it but I don't see where they're getting it from.

Also, why are modern people, with their easy access to the most immense store of data in human history, such god damned retards?
>>
Those are the claims being made by the inventor.
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>>8504549
So basically, he just made the shit up and everyone else repeated it. So now about question 2? What the fuck? Why the fuck is everyone so chist damn retarded?
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>>8504543
>creator of scientifically undisprovable drive says something about drive
>idiot on a cantonese galley sailing board shouts unsubstantiated conspiracy theorist nonsense about the drive
who should i believe???

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>energy can neither be created nor destroyed

Then what provided the energy to cause the big bang?

Checkmate physicists.
>>
>>
>>8512337
Ambient vacuum energy :^)
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>>8512337
A computer/wizard/god did it

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Any good things to contemplate while in the shower? I need new material. Thanks.
>>
What would P = NP philosophically imply?
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>>8512008
that you're a dumb cunt and a fag
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>>8512009
Good thing it's not likely to be true.

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is there a time when most people are asleep
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>>8511910
at night
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Whenever it's noon in the middle of the pacific.

Thing takes up almost an entire hemisphere.
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>>8511916
what?

>>8511914
i mean coz people stay awake most of the day, its assymetric and people have quite divergent sleep patterns, wondering if theres a certain period when most people are asleep.

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Why do people still do math? Don't they know that Godel's Incompleteness Theorem proves that it's impossible to prove anything?
>>
May as well as a real question. Do Godel's Incompleteness Theorems provide any support in favor of mathematical platonism or what?
>>
>>8511869
No

and >>8511871
no.
>>
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>>8511869
you are the most disappointing thing your mom has produced

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So im trying to solve those basic questions preping for my finals...

i have solutions, but i dont understand the logic behind how they got the answer
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>>8511635
What's there not to understand?

$\vec{F}_{R} = \vec{F}_{1} + \vec{F}_{2} = \begin{pmatrix}300\cos(30) - 500\cos(65)\\ -300\sin(30) - 500\sin(65)\end{pmatrix}$
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>>8511681
is that suppose to be a matrix ?

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Can cancer be OK in moderation? It seems like the medical industry is being too aggressive about trying to find cancers as early as possible when in the past the people with these mild beginnings of cancer probably would've lived on just fine without knowing about it ever.
>>
if what you call a "mild" cancer were to metastasize you can die in literally a couple weeks. One day you have some tiny little cancer in your foot that doesn't bother you, and a month later it's gotten into your blood and you have growths on your brain-stem
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>>8511629

It doesn't always do that though. What about all the times when a cancer that wouldn't have been detected a hundred years ago emerges but then gets wrecked by the person's immune system and they live on like it never even happened?
>>
>>8511621
Cancer is bad. more than 10^9 cancer cells generally is incompatible with life.

However, sometimes new techniques are found to be overzealous, especially with slow growing cancers that don't usually metastasize.

Prostate cancer is a good example: the literature suggests that the outcomes are equivocal (when the PSA is low) between biopsy and not biopsying. The rate of complications, although low, is around the same rate of malignant cancers that would have otherwise been missed.
It is similar...

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Is he correct /sci/? Most of his videos are total bullshit but I'm not sure about this one.
>>
>unironically watching lindyfag
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>>8511613
They are incredibly expensive at the industrial level and produce an extraordinarily small amount of torque relative to their size.
>>
No. Stirling engines are a neat toy, but if you already have heat then there are better ways of extracting work from it than a Stirling engine. If they were, we would already be using them.

Also Lindy doesn't believe in global warming.

Hey /sci/
EE undergrad here, please explain to me why we don't invest more in nuclear power. Even wind power is more dangerous to harvest than nuclear. Particularly interested in the opinions of french people.
>>
>>8511573
Because environmentalism is a religion and a purely emotional position
>>
Public opinion is low.
I think long term containment of radioactive material is a major concern. The public seems to think they just bury radioactive material and hope for the best. Out of sight out of mind. In some cases that's exactly what they do. The containment has to last centuries but it fails after a few decades.
>>
Process is very expensive and complicated

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