Archived threads in /sci/ - Science & Math - 104. page
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im taking differential equations and dont remember any integral calculus
how fucked am i?
you remember how to take the integral of basic functions right? that and some trig integration/substitution is probably all you'll need to get started in a diffEQ course.
>what is khan academy
>>8116220
Do some review nerd.
Hey,
I was writing some fiction which took an unexpected twist in which it became necessary to discuss and consider some genetic issues.
I started reading up, and that is when I discovered that there's something called "imprinting" of DNA, which if I understand correctly regulates which parts of the DNA are actually in use for each thing - and I might not be right *at all*.
Then I found something that blew my mind in Wikipedia (Yeah I know, it's a shit, but I'm a noob) in the Genomic Imprinting article.
>In...
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It's impossible to have all of your parents DNA.
>>8116083
That is what I assumed was the norm.
>>8116081
>And I don't want to talk to a /sci/entist, 'cause y'all motherfuckers lying, and getting me pissed.
Can someone give me any intuition on the insolubility of the quintic equation? I can follow the proof, but can't really get a 'feel' for it
think of it like this. If you deny it, your peers will look at you like you're a fucking retard. you don't want to look like a fucking retard. so, intuitively, you should accept it.
have you tried arnol'd topological proof? https://www.youtube.com/watch?v=RhpVSV6iCko
>>8115950
You just have to look at N-th roots differently. N-th roots are solutions to polynomials of the form:
x^n + a
Quintic equations (and beyond) just happen to have roots that can't be expressed via these numbers. But iyou can solve them if you use numbers that are the solutions of these polynomials:
x^5 + x + a
(See: Bring radicals)
There's no insolvability here. It's just that not every algebraic number can be expressed as the root of some "x^n + a" polynomial. Big fucking deal...
I have a question(s) about genetics and evolution.
Is genetic variation always good? Do superior genes always dominate?
If previously separate genepools which have evolved differently are combined, will you end up with less genetic variation in the long run as the interracial breeding continues?
I ask because with the world getting more and more populated there is seemingly more and more breeding between gene-pools that were previously for the most part separate.
I am aware historically some humans have always traveled and so this interbreeding...
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>>8115954
This isn't really a pol question desu.
>>8115957
you lack the most basic understanding of DNA inheritance, which makes me think you are either a) a high-schooler or b) /pol/
either way, you don't belong on /sci/
read a book, biology 101
Would this work? Also please use your advanced math and physics knowledge to explain why or why not.
Maybe provide a new design idea.
https://www.youtube.com/watch?v=UTWk4pu9m8I
>>8115891
H-holy shit anon...
>>8115891
>Centrifugal force meme
It's not a real force bro. Projectile velocity would be tangential to the magazine, so at least you must put the barrel to the side, not the front.
Also imagine this thing rotating with 10000 rpm; what happens when you release a projectile and the whole thing goes to imbalance? Big fucking crash.
>>8115891
>Would this work?
Someone did a short calculation and realized it needs something like ten megawatt to provide those figures.
Say you have 4 advanced math courses to study for. Is it more efficient to study one course each day or study all 4 for 2 hours a day?
Depends. If you're really flowing well and learning quickly while doing one course, you should carry on with that until you get stuck. Then, when you get stuck, think about it for a small time and if you still don't get it, make a note of your thoughts and change course. Continue in the same loop.
Reminder: /sci/ is for discussing topics pertaining to science and mathematics, not for helping you with your homework or helping you figure out your career path.
If you want advice regarding college/university or your career path, go to /adv/ - Advice.
Also, take your pedophile cartoons back to >>>/a/.
>>8115837
thanks lad
https://www.youtube.com/watch?v=wfYbgdo8e-8
Check this shit out.
>>8115757
Popsci must die.
>>8115762
It's not meant to be a lecture. It's meant to engage viewers to get them into science. Not all pop sci is bad.
Except Niel smokeDeGrasse Tyson who should die in a fire.
>>8115757
this just blew one of my minds
How do I into self teaching.
>>8115748
read
understand
do exercises while cementing
goto read
That book is pretty difficult, OP. If you're simply trying to learn calculus, look elsewhere. If you're interested in real analysis, then that's a good choice.
>>8115773
Any suggestions?
Do you people believe that is it possible to learn Math from 3rd grade to Discrete Math by doing 6 hours a day, every day, for a year?
The subject is me. This isn't a discussion about my Career Path since I'm 27, I have a dead end job and I'm planning to start learning Math by myself, something I've always struggled with. This thread is about giving me a general idea of what I'm up against. I've always loathed Math for various reasons. I didn't get it, too complex, Teachers weren't always present, I was always prone to forget...
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>>8115644
Yes, but I don't think its possible to study math for 6 hours a day every day for a year. Not for the average person anyways.
You don't really need to know too much. You can skip any trig, calc, and geometry you run into, probably.
>>8115644
Just buy a basic book and start there before you worry about doing 6 hours a day for a year.
I'm an engineering student. For me math is just like anything else, if you're smart enough to read intellectual books you should be smart enough to learn math.
Studying mathematics(and everything basically) is all about splitting up bigger problems into smaller, easier ones.
The first time you read a subject it will be difficult to understand, let it rest a little bit and come back and it should be easier, then continue untill you master it.
You really don't need to be that smart to understand mathematics. Solving actual problems is another...
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You are part of a small research team employed and funded by a major bio-pharm company. Your team discovers an incredible, relatively inexpensive method to induce biological immortality. No one else currently knows of this revelation. Being the leader and the most decisive of the team, your fellow researchers look to you on what to do next. Understanding that your next decision could alter the entire course for yourself and humanity, what would you do?
>>8115410
kill'em all and sell it to pfizer for 100 octillion buckaroos
>>8115410
Publish publicly.
Fuck the man.
Leak the info on /sci/
Is there a branch of mathematics/physics that deals specifically with waves? I've been really interested in pretty much everything involved with waves, and I'm wondering if there is some area of study in academia that I could hone in on for graduate school / further education
>>8115395
Fourier/Harmonic Analysis
Digital Signal Processing
>>8115395
fourier analysis
>>8115395
Signals and shit senpai.
Spell it out for me.
Is zero really a number?
wehn you add 0.999... to 0 it becomes 1
>>8115421
Adding 0 to 0.999... Still makes it 0.999...
>>8115431
in (R, +) the following is true:
for all x in R, 0+x=x
Let x=0999...
Therefore 0+0.999...=0.999..
But 0.999..=1
therefore 0+0.999...=1 QED
What do you consider as the god tier to shit tier list, regarding difficulty, in mathematical subjects?
>God Tier: Topology
>Shit Tier: everything else
Depends on what you mean.
When it comes to learn the basics of a subject, visual theories are more simply than abstract ones.
If you compete with good people on the cutting edge of research, it's always going to be more hard.
>>8115271
everything you do in school is toy examples = easy when you understand it
everything you do in real world (actually using the math to discover new structure/rules or apply it to modelling something useful) = hard
Is the movie scienceproof?
To watch or not to watch?
I'd skip the movie and read the book instead
>>8115225
He is scienceing the shit out of it.
Tell me why a creature like Cthulhu cannot be real.
He too big.
![Cthulhu-Musical[1].png](https://i.imgur.com/M2NUJoU.png "Cthulhu-Musical[1].png")
It can be real. Just not so big. Blue whales, which are the largest animal known to man can go 30 meters in size. But the deeper you go, the harder for any biological life to survive because of the pressure.
Also underwater animals did not evolve hands and feet due to the fact that they have no use for it under there. So even if you find something in there, it'snot gonna look like chthulhu
Not enough dimensions.
