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Archived threads in /sci/ - Science & Math - 279. page


Post your lecture waifus

https://www.youtube.com/watch?v=fSGWVou89sg
10 posts and 1 images submitted.
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>>7960701
go to bed jafari, unless you're in the OC area then I would love to take you for coffee
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>>7960701
why do you faggots have to be so cringey
>>
would sex

Is it true there is a HIV cure hidden somewhere?
40 posts and 4 images submitted.
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>>7960433
Of course, it is that the top 1% just keep its hidden from us.

Those damn billionaires, how did they ever get the wisdom to put on condoms before having sex?
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>>7960436
:\
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>>7960439
I mean, when I go to the pharmacy and ask for condoms they always tell me that condoms are for the top 1% only, and also only if you are white and male.

I am so persecuted!

Why are they hiding the cure like that?

HUUUUUUURRRRRRRRRRRR

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check out ny easter present!
36 posts and 8 images submitted.
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great.
now can you put your dick and there and go fuck yourself
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dfuq is dat
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>>7960368
Looks like a chastity cage

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Why do I feel dumber having taken anti-depressants for about a year (Zoloft)? I used to solve things so quickly, and my brain used to run so quickly, but now I just feel dead and it takes me a while to think. What's going on?
10 posts and 1 images submitted.
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>>7960308
I'll tell you all about it when I see you again.
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Brain damage from the placebos?
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>>7960308
you're depressed thats whats going on
its possible your antidepressants have stopped having their desired effect

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Alright fags, I'm learning math on my own -- for fun. I'm almost done with Calculus I. Which courses should I do next or even concurrently? What's the most intuitive order of maths to learn? Thanks.
40 posts and 5 images submitted.
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Let me explain better. If you were designing a bachelors to grad level program of pure math from the ground up, which classes would you require and in what order?
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just watch anime instead
math is useless
>>
Let me ask you this: What comes after 1?

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Do CNS stimulants exist in nature?

or are there only mild ones? How about for someone used to amphetamines, is there just nothing in the natural world that will seem effective at this point?
15 posts and 1 images submitted.
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>>7959986
what is caffeine?
>>
>>7959998
Very weak central stimulant, mostly peripheral nervous system effects. It makes your heart rate go up and slightly more talkative and that's about it, i think even nicotine is better in regards to affecting the brain.
>>
Um.. cocaine?

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It's no argument that in order to understand higher level mathematics, one must first build a strong foundation.

And any foundation is built through the process of learning.

So /sci/, what are some good foundation mathematics books?

And no, contrary to popular belief, calling a book 'too easy' that someone else posted on a Botswanian trading card collection forum doesn't make you any smarter.

However, well constructed logic retorts might help.
6 posts and 1 images submitted.
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Lang's Algebra gives a good introduction to abstract algebra
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>>7959603
http://4chan-science.wikia.com/wiki/Mathematics
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>>7961710
this is ass

>>7959603
you need to know how to manage basic arithmetic of numbers and know some special functions like trigonometry. after that you don't need much to start learning linear algebra and analysis

my favorite books are Hoffman Kunza for lin alg and Tao Analysis I for analysis

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What are pear-shaped flasks and thiele tubes used for?
13 posts and 2 images submitted.
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>>7959317
>thiele tubes
used to be part of melting point apparatus
>>
>pear-shaped flasks
I'm not quite sure, but it seems to be used for small samples in distillation and/or rotary evaporation.
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pear-shaped flasks are more stable in ring-mounts, i'm pretty sure

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Why wouldn't a sentient, highly intelligent Artificial Intellience be nihilistic?
18 posts and 2 images submitted.
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>>7958856
Because we would design it to not be.
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>>7958858
>programming a truly sentient AI to NOT do something
See OP pic related.
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>>7958856
>>7958860
sameFAG

What are the odds of a persona successfully swimming across the ocean to another country without drowning, or being eaten by sharks with only the assistance of a life vest and maybe some insulation to prevent hypothermia?
10 posts and 3 images submitted.
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the odds are 1:infinity
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I think people have swam the English Channel, so it's possible if the distance is short enough.
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The human body just doesn't have enough energy to actually make that journey. You'd die of thirst, starvation, hypothermia, or just drown before you even make it close to halfway.

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diagnose me...
traits of concern, manipulative, lying, cheating, worrisome, depressed
i have no motivation and continue to repeat mistakes that harm others including cheating lying and just general fuckery. i don't believe i am a sociopath because of how anxious i can get. i look at egos more than morals. i just took a formal test online that i dont think i should even believe because of how often i lie out of impulse. please help.
16 posts and 1 images submitted.
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You might be retarded.
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> traits of concern, manipulative, lying, cheating, worrisome, depressed
Diagnosis : You're a jew
>>
>>7961614

see a psychologist

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What's the day to day job like of a typical run of the mill mechanical engineer or electrical engineer?
13 posts and 2 images submitted.
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>>7961385

Inb4 sucking cock
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>>7961385
sucking cock
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>>7961392

See

>>7961386

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What is the significance of the number 0.707 or 3dB or 1/sqrt(2)? I see it everywhere, e.g. bandwidth, quality factor, RMS, damping coefficient, and cutoff frequency. Are they all related somehow?
8 posts and 1 images submitted.
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>>7961326
.707 = cos(45) = sin(45).

-3dB denotes the bandwidth of a signal. That's mostly convention but it is also proportional to [math] \frac{1}{2 \pi \tau} [/math].
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>>7961338
Every constant is proportional to a constant.
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>>7961338
>-3dB denotes the bandwidth of a signal

How so? Last time I checked it denoted an attenuation by the factor of 2^(-1) (or by the factor of 2 if speaking of power).

so suppose i have a function f(z,t), is it possible to plot it using the plot(or any other) function at say t=3 without declaring t:=3 ?
8 posts and 6 images submitted.
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bump
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poop
>>
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bump

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How to learn analysis? When it comes to calculations or practical applications I have no problems, but when it comes to proofs I don't even know where to start
7 posts and 1 images submitted.
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Delete system32.
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sasuga frogposter
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>>7961066
Easy. I'll tell you all about it when I see you again.

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