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Archived threads in /sci/ - Science & Math - 1101. page

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Are there any ways to increase IQ? Or is it just pure genetics?
12 posts and 2 images submitted.
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Study
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You can expand your knowledge and make your brain process faster, but you can't increase your IQ.
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>>8534003
Yes, study and make new neural connections. IQ can increase/decrease.

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I'm trying to understand combinatorics and counting and have a problem.
If I wanna find out how many possibilities there is for me to make an ordered list with the the numbers 1-10, how do I do that with repetitions not allowed?
The problem comes when it has to be ordered, since the unordered formula would simply be 10^10.
8 posts and 1 images submitted.
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10!+9!+8!+....
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>>8533921
10*9*8*7*6*5*4*3*2*1
because 10 represents all numbers 1-10 and 9 represents 9 of those numbers. Same trend for the rest of the sequence.
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>>8533933
its not factorial, ur not ordering 10 things. Your selecting 1 out of ten.

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Prove to me that this isn't the biggest bogus piece of shit to come out of science.
21 posts and 2 images submitted.
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Bump for recommendations for interesting reading about game theory. Do you have any tips for interesting, thought provoking books on this topic?

Also OP's mum is a zero-sum game.
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>>8533700
What's there to read? It's just presumptions.
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>>8533700

OP's mum isnt' a zero sum game, anyone can get some

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he wasn't

for example the Gaussian Elimination was known by chinese mathematicians centuries before him

why do many say he was amazing at math?
20 posts and 4 images submitted.
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>>8533333
I'd just like to interject for a moment. What you’re referring to as Gaussian elimination is, in fact, Gauss/Jordan elimination, or as I’ve recently taken to calling it, Gauss+Jordan elimination. Elimination is not an operation unto itself, but rather another method for recognizing a fully determined system of linear equations.
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>>8533347
i meant the chinese knew about it centuries before

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How correct is he.
From /his btw
32 posts and 1 images submitted.
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>its why homosexuality exists
lost
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>there are a large amount of gay wolves
Lmao /his/ is a meme
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>>8532354
How can we know the wolves are gay, asserting dominance, or sex addicts

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I'm thinking of dropping out of law and starting a physics course (BSc). Anyone here studying physics fill me in on what to expect?
18 posts and 1 images submitted.
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>>8531890
>Anyone here studying physics fill me in on what to expect?

You can expect to earn 1/10th of what you would earn in law.
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>>8531901
But enjoy it a lot more.
Expect hard work and hard-to-grasp concepts but marvel when you get them and expect to enjoy understanding many things about nature and being fascinated by it.

Also, studying won't be about reading long relativistic bs but about stuff you can prove by yourself and understand how to apply to life.
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If you're in Europe, forget >>8531901
In countries like Czech Republic, physicists are one of the few who make quite a bang money.

>>8531917
He's right, but it's also very country dependant. In most Europe countries, you will take courses like Real Analysis (for 5 semesters, in fact) where it's not enough that you understand the math, you will also have to learn all the proofs for the oral exams etc. Study time wise, it will be much more demanding than law, but it will feel worth it most of the time and you will be fulfilled with every solved problem and new ways to understand things.

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Does /sci/ like classical music?
Who are your favorite composers?
Favorite pieces?
Where/when/how do you listen?
Do you listen when working/studying?

"Classical" in the broad sense: baroque, romantic, 12-tone, not just classical era.

pic related, it's the greatest musician of all time.
49 posts and 5 images submitted.
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>>8531855
I mostly only listen to their biggest masterpieces.

My favourite composer is by far Mozart, sometimes I listen to Mozart when I'm playing hearthstone as it raises my IQ by an average of 6.3 points.

I listen to classical music when I'm studying as well, but not when I'm reading. I'm autistic and can't focus on reading words and listening at the same time
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>>8531855
>Does /sci/ like classical music?

No.

I actually think it is the most pretentious bullshit to listen to songs from even 20 years ago so you can imagine how I see as burning autists the people who listen to music from like 500 years ago.

Literally go out and lose your virginity and you will stop liking that bullshit, faggot.
>>
Don't really listen too much but would like to get into it. I enjoy Chopin and Vivaldi, any recommendations?

hey sci. just saw a trailer for this movie and looked it up on wikipedia. its called Hidden Figures about some black women who were critical to getting us to the moon for were covered up because society wasn't ready for them.

why haven't they won the nobel prize or something? these women were literally human computers. HUMAN COMPUTERS. not even Einstein was that good at math and he invented e=mc2
39 posts and 7 images submitted.
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>>8531771
Being able to compute lots of shit at the same time doesn't make you intelligent, only smart. They have only applied things other people found out thus they could have never win the Nobel prize. But I wouldn't mind to be as fast as they were. Also: WE WUZ PHYSICISTS AND SHITZ
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>>8531782
anon. these women made the calculations to get us into space and did it accurately. the nazis couldn't even aim a v-2 straight in world war.

they did this all without calculators. they were the calculators! And they weren't recognized at all. i know black education is bad now but what happened?! i can barely add multi digit numbers up in my head and these women were crunching numbers as far as space.
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>>8531773
come on. take that to /pol/. seriously, with such a lack of black scientists known about, why aren't we talking about the achievements of these three women?

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hey /sci/
I just found this "paradox" but no matter how I calculate I just don't get it
can you explain?
31 posts and 5 images submitted.
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>>8531710
>If that 1 pound now makes up 2% of the total weight, then the total weight must be 50 pounds.

It's right there. Are you literallly retarded?
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>>8531722
but it just doesn't make any sense
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>>8531730
>many people find it counterintuitive
It's right there. Are you literally retarded?

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sup /sci/

Chemfag here. Looking to buy some concentrate acids online, formic and sulfuric specifically. Is eBay fine for this? I'm new to buying chemicals and they aren't for a lab or institution.
20 posts and 4 images submitted.
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Just go make freinds with a lab tech at a university or even college and you can have them order stuff for you.
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Concrete is usually a basic substance
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>>8531577
Most people won't want to help with this. I have one friend still at university in a lab but I don't think he handles ordering chemicals or would be willing to help me source them.

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If there's an infinite amount of parallel universes shouldn't there be a parallel universe where someone has invented a machine that could destroy all other parallel universes? Like the one we're living in now
22 posts and 3 images submitted.
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>>>/bigbang/
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>>8531109
>many worlds interpretation is /x/

Let me show you the door brainlet. You dont belong here.

>>>>>>>>/out/

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How does one figure out the angles for the light blue line (D, E)?
I've got everything else.
8 posts and 1 images submitted.
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It's just a brainteaser at work thing.
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See this thread for some hints:
>>8528499
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Nobody?
Is it too early?

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Lake Superior's surface is 30 feet above Lake Michigan's.

Why has the US government not built a canal to drain Lake Superior for hydroelectric energy?

When you think about it, all those big lakes represent are terawatts of potential energy. Could you even construct a dam capable of holding back Lake Superior?
8 posts and 2 images submitted.
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>>8533825
Because draining a great lake would cause an environmental catastrophy and would deprive millions of fresh water
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>>8533830
>deprive millions of fresh water
Well, it would ony drain the lake a few feet by the end of it all. The maximum drainage would be 30 feet, to meet Michigan's surface level.

When you consider that if would flood and destroy both Chicago AND Detroit, I think it balances out the environmental aspects.
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>>8533837
Yes and then the heroin needles floating around in Chicago and Detroit get washed DOWNSTREAM.

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>Let me put this is a different color here
>Inflection point *writes out the words* inflect.....ion...... poi---nt. Inflection point.
>I hope this gives you a bit of an intuitive sense
>no no no this line should be.... purple. No it should be green.
>I encourage you to pause the video.
19 posts and 2 images submitted.
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ruined by bill gates' agenda
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>>8533282
>thousands or maybe millions of students claim he is the only reason they passed their math classes

Must be a meme!
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>>8533288
why?

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If I roll dice for an infinite amount of times, will the infinite amount of possible number sequences be rolled as well?
7 posts and 1 images submitted.
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no you will never get 0,7,8,9
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>>8533222
I will rephrase the question.
If I roll a six side dice with the numbers 1, 2, 3, 4, 5 and 6 on each of the sides for an infinite amount of times, will the infinite amount of number combinations that can be formed with the numbers 1, 2, 3, 4, 5 and 6 be all eventually rolled?
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>>8533222
>possible

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