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Archived threads in /sci/ - Science & Math - 22. page

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I have to write a paper and give a presentation on the topic "Complex Numbers and their representations".

After looking over the wikipedia article on complex numbers, it starts out being quite simple, then it goes into who cares, then it goes into stuff I can't understand.

What are the most interesting things about complex numbers and what are various representations of them and why the fuck should anyone care?
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>>9170752
>he hasn't been paying attention in class
ah, i remember high school, good times
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>>9170752
Smoothness.
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>>9170765
Explain please.

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In nature species adapt to their environment and this includes becoming more attractive to the opposite sex like birds peacocking and monkeys with big bottoms. So I have a question of this applies to humans does that mean humans will become more and more attractive overtime to fit the taste of the majority of the opposite sex(bigger breasts for woman, taller men with no body hair for men) and if so what if humans develop a subspecies to pander to furfags overtime is shit like this even possible or just science fiction?
13 posts and 3 images submitted.
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>>9170732
given enough time, tens of thousands of years, sure its "possible". Assuming, of course, you had continuous selective pressure for the traits you mentioned.

I assume you could speed up the process with selectively breeding, but that's "immoral".
>>
reproduction is not really dependent on physical attraction for the average human

people aren't going to suddenly stop reproducing because they dont fit your criteria for attractive
>>
Not enough selection pressure
Also I'm pretty sure and adaptation is not a trait that evolved, it's more a of a survival strategy, like fish swimming in schools or crocs swallowing stones on purpose

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Did hurricanes Irma, Harvey and Jose prove that there has been a significant man-made change in the climate? We've had back-to-back hurricanes in the past, but is this time different?
18 posts and 5 images submitted.
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>>9170539
literally no different. Individual instances do not prove nor disprove theories. If we can measure a trend of hurricane intensities then it would indicate a change in temperature but to say this is because of man made greenhouse gases is inane. The most difficult part of studying man-made climate change is estimating the effect humans are changing it along with all the other 3 dozen factors.
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>>9170539
>Humans created hurricanes
>We are not a type one civilization

Choose one and only one
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>>9170539
Number of hurricanes has increased slightly during the 20th century. "named storms" metric may not be relevant as they didn't name as many and I would imagine they did not properly detect and categorize all of them over a century ago

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>An atheist gallbladder doesn't believe in human beings
7 posts and 1 images submitted.
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Atheism is ignorant and retarded.
Just canceling a creator out is pathetic, just because its so abstract.
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>>9170436
Gallbladders are works of Satan
>>9170438
Christianity is ignorant and retarded. Just adding a "dark creator" to the equation is pathetic, just because it's so abstract.
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>>9170438
whats the statistical probability that sustainabl life starts somewhere,some time in any universe by chance
Now multiply that probability times infinity

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>>Thus, it is conceivable that freedom of choice has been restricted since the beginning of the universe in the Big Bang, with every future measurement predetermined by correlations established at the Big Bang.

Everything in life and the universe is predetermined.
26 posts and 2 images submitted.
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>>9170425
im comparatively a brainlet, but kek
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>>9170425
>>9170425
If quantum phenomenons are deterministic all is just planned since big bang, if indeterministic nope
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>>9170589
And I hope for the indeterministic one

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I'm about to finish Peter Smith's Gentle Introduction to Category Theory. What should I read afterwards if I want to get into topos theory or homotopy type theory?
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>>9170396
>writing Xeno with a Z
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>>9170396
that's a pretty great picture anon
>>
Dive into a HoTT book and see where you get stuck.

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Shits got me absolutely heated, Debate on whether 3 or 7 is better.
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get fucked seven is great
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>>9170364 ill fuckin end your life with the power of triangles, the strongest shape
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jesus > your arguement

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Do your tutors have you use Linux? Is it a bad idea to buy a Linux laptop?
10 posts and 4 images submitted.
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We're taught how to use linux in the first year of university (Handling terminal, how to run virtual servers on it, etc.) and the general recommendation is having a laptop that can dual boot, as linux can't do some things that say windows can

Linux for specialist, Windows for making notes and general work
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>>9169999
Can't argue with those quads m8. I went to a summer school in Switzerland and everyone was using Ubuntu (albeit most were dual-booting with either Mac or Windows). Virtually all tutoring was on Linux.
>>
You can get by without linux.
Make sure you use linux.

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Currently studying engineering.
Did i fall for the trap?
8 posts and 1 images submitted.
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As long as you aren't an idiot, and only took it because you think it's lucrative, then no, you'll be fine.
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>>9169906
Do people actually do that, why would go spend 4 years of hard work because "ENGNIGGRRS GET PAID ALOT"

Also >Implying engineers make alot of money
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>>9169924
I'm sure you were a 300k starting mathematician PhD who got any job you want in any field of your choice, bucko

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What's the consensus on carbon dioxide being a greenhouse gas? Are there respectable scientists that deny it?
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>>9169850
go read a first year chemistry book
it's not complicated
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Good bait 10/10.
You're more likely to get the responses you desire from /his/ or /pol/. In fact, stay there.
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>>9169889

If I wanted to know what the mainstream hypothesis is I wouldn't have made this thread.

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Animals are exceptionally malleable. The russian fox experiment proved that.
Why don't we train an animal to become incredibly smart? The potential cost efficiency of a small large brained animal doing things like data entry is insane. Sure, it would take millions to get an animal to that point, maybe a few billions, but it'd make trillions. Sure, they don't have opposable thumbs, but we could make them tools. How much does a poor chinese villager cost to make shoes all day or work with dangerous chemicals? At least a bag of rice, probably more with chinas growing economy. What about a crow? Like five peanuts and a thimble of water. And we wouldn't have to give China money. It's likely to be doable from a practical standpoint, we know a shit ton of wats to bruteforce intelligence, as well as essential specific genes
55 posts and 3 images submitted.
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>>9169768
>Why don't we train an animal to become incredibly smart?

We already did that with women and then they demanded rights and now they have fucking destroyed society.
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>>9169804
https://www.youtube.com/watch?v=70GgyJAF8jI yes but crows are cuter
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>>9169768
We'd have to genetically engineer an animal to be this or it would have to go through evolution like we did which would take thousands if not millions of years. Impractical with our current technology

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Hi everyone,

I'm looking for the name of a concept to describe a pattern of motion that I have noticed. I don't know what it is called so I can only describe it like an idiot would. I swear this isn't a joke.

Hold a pen or pencil in between your thumb and forefinger, at about the midpoint.

Place the non-ink/non-lead end, in between your lips. Touching only on of the lips (but keep them close, you'll be needing both real soon)

Begin to roll the object between your fingers/across you lips

At some point near the middle of the finger rolls, kind of grab the pen with your opposing lip

Notice how the direction of you finger roll remains the same but after you transition lips the pen is travelling in the opposite direction.

What the fuck is this?
15 posts and 1 images submitted.
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>>9169329
wat
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>>9169332
What's confusing you?
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>>9169329
You're at an 11 right now, you need to slow down and sober up, it's only Thursday.

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Look at my argument against the Riemann hypothesis

>On The Riemann Zeta Function
>http://vixra.org/abs/1703.0073
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>vixra
>>
>we propose a solution to the Banach-Tarski paradox
dis gun b gud
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I guess the main flaw with your argument is that you fail to produce a nontrivial zero of the Riemann zeta function with real part unequal to one half.

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Is there a Program for Physics like Maple?
9 posts and 1 images submitted.
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>>9168987
I'll tell you if you post her snap
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>>9169006
You won't really tell me, but it's demirosemawby

she posts shit like that all the time too
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>>9168987
Depends on what you gonna use it for

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Can anyone recommend some good chemistry and/or physics books?
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>>9168922
http://4chan-science.wikia.com/wiki/Physics_Textbook_Recommendations
http://4chan-science.wikia.com/wiki/Chemistry_Textbook_Recommendations
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>>9168933
Thank you
>>
Physical Chemistry 4th edition - Silbey
Optics - Hecht
Fundamentals of Photonics - Saleh
Advanced Organic Chemistry - Sundberg

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