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Archived threads in /sci/ - Science & Math - 737. page

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Prove we don't live in a simulation.
203 posts and 25 images submitted.
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>>8725486
No.
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>>8725486
how about you prove that we live in a simulation?
>>
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>>8725497
before

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What does Alien Hand syndrome imply for Free Will. When you sever the connection between the hemispheres of the brain it seems one half can still act, but without any sense of agency in the mind of the person. It seems like each person is actually two individuals dueling for control, but only one half is actually represented in the mind.

https://www.youtube.com/watch?v=dIBBDuQrd-I
11 posts and 1 images submitted.
>>
It's not even that only one is represented in the mind. It's more that only one has control of your vocal cords.
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I don't care. I just came here to say that sometimes, at night, I get the sudden fear that my hand is going to start punching or strangling my sleeping girlfriend, and that I have to mentally focus on keeping control of it.
>>
>>8749095
You're suffering from a condition known as being an inherently violent male.

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MOOCs are totally fucking worthless. Never take one. I am taking Stanford's introductory machine learning course, and I have realized it's totally fucking worthless. I'm going to complete it anyway because it interests me. Unless you have to go to a physical building and write an exam, it's a waste of time and money. Now I will explain why.

You can cheat your way through the entire course and all of the marking is automated, even the programming assignments. Furthermore, you have to get at least 80% of stuff to progress to the next assignment or quiz, so there is a huge incentive to just plagiarize. Every single quiz and assignment is on GitHub. A retard who knows ctrl C + ctrl V could just google every single question and get 100%.

I would never hire someone whose education was exclusively from MOOCs. If you never sit down in a supervised environment to write a paper exam, there is absolutely no guarantee you learned a goddamned thing.

Stanford is evil for making this course, because it's just a tax on desperate third world students looking to pad their resumes. I'm not one of them, but I pity them, because 100 USD is a lot of money in South Asia. They should be banned from charging for MOOCs.
8 posts and 2 images submitted.
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>you can cheat your way through the entire course
MOOCs aren't even for a grade in most cases, and you can't earn a degree with them. They are there for you to teach yourself. That's what college should be about, in reality but the situation has gotten complex there.

You cheated yourself.
>>
what if i already have a master's degree in math, and am seeking some sort of formal qualification to move to a career in machine learning without the time and expense of a full on degree
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>>8749102
>You cheated yourself.

You're so stupid. The point of education is to get better jobs, not mental masturbation. No one else has to take your MOOC course seriously under any circumstances, just like when you beat off to porn.

>>8749106
>formal qualification

It's not a formal qualification, and it never will be, because employers know that you could write a fucking JavaScript bot to pass the course.

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Is true ((they)) found "something" recently on antartica?

like some ruins?
6 posts and 1 images submitted.
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>>8748857
well, the continents once were all combined into Pangea, and before that other supercontinents. I wouldn't be surprised if they did
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>>8748857
[citation needed]
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>>8748888
http://www.sciencemag.org/news/1998/03/ancient-ruins-found-antarctica

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how do I factorise this?
x^2(x-2)-x(2-x)

the answer is
x(x-2)(x+1)

but I have no idea how to get there
10 posts and 2 images submitted.
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please keep your stupid questions in the stupid questions thread

>>8748174
>>
[math]x^{2}(x-2) - x(2 - x) \\
= x^{3} - 2x^{2} + x^{2} - 2x \\
= x^{3} - x^{2} - 2x \\
= x(x^{2} - x - 2) \\
= x(x-2)(x+1)[/math]
>>
>>8748281
sorry
>>8748297
thanks

Why are planetary orbits never oval but some form of an ellipse, parabola or a hyperbole.

I know there is this "Keplers Law" but I don't understand the reasoning behind it why ovals are disallowed.
8 posts and 1 images submitted.
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>>8748000
[math] \delta S = 0 [/math]
>>
>planetary orbits never oval
Are you sure about that? Is an ellipse not oval enough for you?
>some form of .., parabola or hyperbola
I hope not
>>
>>8748052
this

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/sci/ I'm afraid of being programmer. I love math, physics, computer science, and code take a huge place in those topics, but I'm afraid that after I'll find a work as a programmer, I'd hate coding. A lot of people said about boring tasks,a lack of time and stuff like that.
7 posts and 1 images submitted.
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>>8747873
you aren't done paying dues just because you get a degree. be prepared to eat shit at some work-a-day gig for your first 2-3 years.
>>
>>8747875

This.

And it's a much better job than you think, OP. I'm about to start my first developer job in May, I've worked a couple of relevant internships and it's been nice.

Before that as a teen I worked as a dishwasher at a busy hotel/banquet center and in a warehouse on 3rd shift. You have no idea what soul crushing work is.

Being a developer is getting paid 50k+ to sit at a desk, code, and creatively solve problems with your team members. You get a lot more intrinsic reward from things you create than 80% of other major occupations.

And after your 5 years of Level 1 and 2 work you can try to get a lead or management role somewhere so shut up and nut up.
>>
>>8747873
>I'm afraid of being programmer.
It begins and end up being work, same as all jobs. That's why they call it a job, cause they have to pay you to do something horrible.
You have to rely on horrible co-programmers and users who can't think. You have to log the users cause they'll lie and say they didn't push some button. If you don't prepare for bs, you'll be looking for a bug that doesn't exist.
And then there's the wonderful meetings, with people that have to open their mouth and drag on meetings. Bosses who are too useless to make choices and leave you in limbo.

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[math]
{{2n}\choose{2}} = 4{{n}\choose{2}} + n
[/math]
>/sci/ can't prove this
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>>8747792
>memebinatorics
>>
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>>8747805
>>
>>8747792
Do your own homework faggot

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Hey, /sci/ I've heard many ways on the most effective ways to study. I've tried many of them, but my information retention is still lackluster. Would you be able to point me In the right direction of a good method; or maybe something that has worked will for you.
6 posts and 1 images submitted.
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>>8747632

Learn all the keywords definitions by heart (Meaning you repeat it until it sticks, just like lyrics).
Then its just a matter of regrouping and rearranging those keywords in most of the material.
>>
>>8747632
>but my information retention is still lackluster.

Try a subject that you are genuinely interested in.

A common aspect of intellegent people is that they choose a favourit subject and constantly turn it over in their head until they reach a high level of attainment in it.

Most people choose maths.
However because of a misshap involving chemical X, i chose debating instead.
>>
>>8747662
Thanks I'll definitely give that a shot

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EVOLUTION: "SCIENTIFIC" BULLSHIT
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>>8747486
Nice bait.
>>
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>>8747486
mutation and survival of the fittest are both scientifically proven facts.

What's the least abstract set of mathematical rules one would need to describe our Universe?
10 posts and 1 images submitted.
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>>8747448
1+1=2
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>>8747448
all axiomatic systems are more or less equally abstract. ZFC is the modem choice, pretty concrete and pretty good.
>>
>>8747448

Which countries use these signs for multiplication and division?
Asking because that multiplication can be easily mistaken for a letter variable and division has that excess horizontal bar that just takes redundant additional stroke to write.

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What chemical bonds does air have?
5 posts and 2 images submitted.
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N2
O2
CO2
O3
CH4

There's plenty of Argon but it's a noble gas
>>
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This one, but only after it rains.

No hint to it's name tho, for obvious reasons.
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>>8747288
Ionic, valence.
I'm familiar with only these two.

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mfw I got a comptetive post-doc position.
Boss wants analysis and results of upcoming experiments to be shared between a post-doc and student.
students there hate me, i got competitive postodc through luck and knowing ppl.
I'm not smart, students openly laugh at me.
gonna be me constantly shown up by student i'm paired with.
mfw i'm gonna be as mean and petty as i can be with student, because being scientist is all about being "collegial".
8 posts and 1 images submitted.
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>>8747264
good
for
you
>>
>>8747268
For what?
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>>8747264
>being a scientist is all about being collegial.
This is why the world deserves a fucking spatial rift.
Science is about science.
Fuck EVERYTHING else.

National Pi Day!

3.141592653589793238462643383279502884197169399375105820974944592307816406286 208998628034825342117067982148086513282306647093844609550582231725359408128481 117450284102701938521105559644622948954930381964428810975665933446128475648233 786783165271201909145648566923460348610454326648213393607260249141273724587006 606315588174881520920962829254091715364367892590360011330530548820466521384146 951941511609433057270365759591953092186117381932611793105118548074462379962749 567351885752724891227938183011949129833673362440656643086021394946395224737190 702179860943702770539217176293176752384674818467669405132000568127145263560827 785771342757789609173637178721468440901224953430146549585371050792279689258923 542019956112129021960864034418159813629774771309960518707211349999998372978049 951059731732816096318595024459455346908302642522308253344685035261931188171010 003137838752886587533208381420617177669147303598253490428755468731159562863882 353787593751957781857780532171226806613001927876611195909216420198938095257201 065485863278865936153381827968230301952035301852968995773622599413891249721775 283479131515574857242454150695950829533116861727855889075098381754637464939319
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>>8747185
Well i sure dont care.
>>
Does pi contain all finite sequences of numbers?
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>>8747185
Reported for spam.

>>8747230
there's no way of knowing.

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Are particles infinitely divisible?

What actually IS a particle? What's between them? What's even between the subatomic particles-and-antiparticles that fizz in and out of existence between electrons and nuclei? Are they congruent cubes with no inbetween?
6 posts and 1 images submitted.
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>>8747097
I imagine everything is infinitely divisible because size and space are relative
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>>8747119
So a quark could be as relatively big as a galactic cluster to some smaller particle?
>>
>>8747097
They are not.
A fluctuation in a field.
There's nothing between them.
They are not.

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