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Archived threads in /sci/ - Science & Math - 379. page

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I usually do at most a few hours a day.
What would happen if one were to study for 20 hours a day?

01*20*365=007'300 hours.
10*20*365=073'000 hours.
20*20*365=146'000 hours.

What would go through the head of someone who did 20 years of that?
11 posts and 1 images submitted.
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>>9006359
Permanent brain damage because of lack of sleep and seclusion for one.
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>>9006359
It doesn't take 146,000 hours to finish studying math.
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>>9006364
sweet

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Is it true that the human brain and nebulas have similar structures and even function somewhat similarly
12 posts and 2 images submitted.
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>>9006031
No, not at all. No more than a chicken egg looks and performs like a football.
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>>9006039
but bruuhh what if nebulas could be like, like the brains of gods?
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>>9006031
Nebulae are various in form and have 0 in common with the brain's function. The general map of the known universe has similar structure to neural connections and clusters, if that's what you really meant.

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if a glass cup has some cold water and produces water on the outside....

then would a glass cup with cold EGGS produce EGGS on the outside?
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My theory on the matter is that perhaps if the cup was in fact a plastic cup then it could possibly, and correct me if im wrong, leak EGG residue from its poors. Anyone care to chip in? My hypothesis could always use some feedback!
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>>9006007
I'm afraid not. The coldness of the water (or eggs) causes quantum fluctuations that create tiny storm clouds on the outside of the glass which then rain on the glass. This rain will always be water regardless of what is cold
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>>9006007
if you surround it in an atmosphere of chickens, then yes.

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I am studying a discrete mathematics book and am enjoying it thoroughly. The book teaches a bit of number theory/linear algebra, combinatorics, probability etc. I really enjoy the sections on number theory and algebra.

What kind of math should I focus on for crypto? What industries (besides government) hire security guys? The problems I have is anytime I check for security jobs/go to meets up around security it's very different than what I am interested in.

I don't know how to describe it but they're all about firewalls, linux, OSes, and work as security analyst at tech companies...

I'm more interested in academic stuff... not that.. so any sort of ideas on where my interest might lead to in some industry?
16 posts and 1 images submitted.
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bump pls. I'd like to know as well
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>>9005006
Algebraic Number Theory
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>>9005006
Get an internship at the NSA

Do you consider yourself a brainlet? What are things you study, do and read to educate yourself?
42 posts and 8 images submitted.
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I am a brainlet, but it seems I'm really good at hiding it. I had perfect grades in school and in college despite never trying, and secured a great job with the FBI three months after I graduated. But everyone at work seems far more intelligent than I am and I don't feel like I belong. I've been here 3.5 years now and I feel like a retarded brainlet, but my career is progressing well regardless. I fear it's only a matter of time until people realize I'm faking it though.

Even on 4chan I feel retarded. I watch people get into arguments here and despite the stereotype of us all being angry shitflingers, people are often way more articulate than I and they voice their stance with so much more elegance than I could ever muster. I don't know how I've managed to fool the system for so long.

As for what I study, I'm learning Russian and Arabic in my free time and I'm considering doing a master's in counter-terrorism. Not because I think it will be a particularly informative degree, but because it will look good on paper and looking good on paper seems to be my specialty.
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>>9004781
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>>9004788
Damn, this kinda sounds like me and I hate the feeling so much.

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https://youtu.be/8Za28tU_G4Q

Full of good facts for your pleasure :)

あなたかとは思っているとは思わなかったということ(^^)の。
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Loved the fun facts!!

기차로 자살이 다른 가능성에 대한 아이디어를 않으려고 보고된 바 없다.
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>>9003970
ありましだね焼き上がりましたに。?がありますはーとかとは思わないですよねとしていますに見えますに見えないか。、!があるのか。!をする。!は、?に見えますのでもいい。。!
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저는 ODF 이해하지 못합니다. 이 사실을 설명해 주십시오.

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The mathematical system in current math is quite simply broken.

First of all across many math textbooks there is inconsistency of syntax such that a student learning from different math books come across different answers.

Furthermore the syntax to mathematical language taught in schools is riddled with wats, gotchyas, and general faffing about which cause students to produce more errors than necessary. Even basic syntactic structures like PEMDAS which were aimed to add more control to math have actually cause students to struggle further thus preventing them from attaining higher maths.

Furthermore most math notation is not general purpose until calculus level. In algebra all the basic pieces are taught in order to achieve basic computing only that a few pieces are left mussing such that a student can not write a general purpose program and compute it by hand without including english into their problem. The need for using words to describe math problems is a weakness, not a strength. It hinders students from understanding the full breadth of what logic and math can do when combined.

A new notation is necessary not only to make math more consistent, but to reduce errors and to allow students to progress further into mathematics with less struggle.

The true answer to this problem is the lambda calculus proposed by alfonso church.

Using polish notation such as this:

(+ 2 2 (- 3 3)) is not only unambiguous but allows for faster computation by pencil and is less error prone.

The fact that we continue to teach students antiquated notations is a side effect from the "boy's club" of university that persists in making students jump through hoops rather than innovating.

It's just plain dense.

Even reverse polish notation arguably provides a better more complete mathematical system than infix notation.
22 posts and 4 images submitted.
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>>9003910
All math is just a set of variables with axioms telling you how to use them. You can literally make up any bullshit you want (people do every day) and call it "math" so long as you adhere to your axioms.
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>First of all across many math textbooks there is inconsistency of syntax such that a student learning from different math books come across different answers.
If everyone were smart enough to use the objectively superior French syntax, this would not be a problem.

>Even basic syntactic structures like PEMDAS which were aimed to add more control to math have actually cause students to struggle further thus preventing them from attaining higher maths.
PEMDAS is as simple and unambiguous as it gets unless you still fall for 2008 baits from /b/.

>In algebra all the basic pieces are taught in order to achieve basic computing only that a few pieces are left mussing such that a student can not write a general purpose program and compute it by hand without including english into their problem.
If you think 100%-symbolic proofs are readable, you have a problem. There is a reason Donald Knuth included dotted lists, tables and paragraphs in [math]\rm\LaTeX[/math].

>A new notation is necessary not only to make math more consistent, but to reduce errors and to allow students to progress further into mathematics with less struggle.
Introducing thousands of new symbols will make things worse, especially in middle school where most students can't even tell an adverb from an adjective.

>The true answer to this problem is the lambda calculus proposed by alfonso church.
λ-calculus is for computation, not notation.

>(+ 2 2 (- 3 3)) is not only unambiguous but-
Ass-unreadable. Lisp is easy to parse, but only a newfa/g/ would think it's anywhere legible. Besides, the brackets here make it even more complicated since it hides the fact [math]\left( \mathbf Z,\, +\right)[/math] is a group (no brackets needed).

Take your Reddit-spaced Lisp FizzBuzz circlejerk back to >>>/g/fbg
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>>9003949
>PEMDAS is as simple and unambiguous
PEMDAS is inaccurate and may yield multiple possible results in certain edge cases. It, and the way it's taught, are why I ditched formalized mathematics for ten years. I developed other, non directly numerical ways of computing logarithms, renormalization, certain geometrical and temporal relationships. I'm fairly biased towards thinking mechanically to begin with.

Mathematics are in general, terribly taught. There are reasons for this in the US that can be attributed to large scale intellectual purges, and movements to limit mathematical literacy in the general population. "The common man need only be able to count money and pay his taxes. He has no need nor capacity for such things as geometry, or algebra." Faculty were generally removed after being framed as communists, or communist sympathizers. Further down the chain, present day, these artifacts and their effects are still ticking away.

But that's really irrelevant. I just didn't like being told I was wrong, and didn't care to learn other people's junk hackjob little systems constantly. I didn't know the history, see the connections, and I did not properly see its relationship with nature and the underlying logic of the universe. There is no desire or attempt to speak of such pretentious philosophical things. No mention of Lepponicus and Democritus when introducing atomic theory, no mention of void and the big debate in Greece about the nature of change. No mention of Babylonian mathematics, base 60, and all the ways it's used everyday.

Nothin'. There's nothin' but junk and iterative repetition to clumsily patch all the ways the high level heuristic gets it wrong.

Fuck PEMDAS. PEMDAS is trash.

Are lucid dreaming techniques legit or just baseless anecdotes?
30 posts and 2 images submitted.
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I fucked your mother last night in a lucid dream.
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I went through a phase where I tried almost everything. So far my only lucid dream has occurred because of a dream-in-a-dream situation, years after I stopped trying.
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>>9003258
They do work but some people have it hard, like me.
On the other hand some motherfuckers seem to succeed at first try.

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>Medical tests are adjusted for race
>Blacks have poorer medical outcomes
>These two things are unconnected
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...ok?
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>>9003193
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>>9003193
>Medical tests are adjusted for race
what did it mean by this?

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What do you think about the emerging science of probiotics and understanding this general subject.

Genetic sequencing is making it more possible to analyze the microbiome of the human being.

- Anyone on sci study this are of science?
- Anyone on sci take or use probiotics?
- Anyone have predictions about the near future 5-10 years of this field?
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Anyone interested?
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are any of their benefits scientifically backed or is it just like the nootropics meme?
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>>9001077
http://www.sciencealert.com/new-research-declares-probiotics-have-no-effect-on-healthy-adults

It's probably something that isn't altered heavily by simple pill taking but also requires changing in diets.

AKA taking a probiotic pill is probably pointless if you are eating tons of greasy and sugary drinks. I think there is potentially benefit but it requires more work vs pills.

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Whenever I see discussion of the James Webb telescope someone invariably brings up the complexity of its deployment, but is it really that much more complex than other advanced mission stages, i.e. Curiosity's descent?

https://www.youtube.com/watch?v=bTxLAGchWnA&feature=youtu.be&t=15
25 posts and 5 images submitted.
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>>9000667
The pieces have to fit together so precisely it's ridiculous. They don't even fit together perfectly on the ground right now because they have to take into effect the thermal differences it will have in space.
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Curiosity wasn't a $9 billion dollar mission.
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>>9000667
What would reaction be if the rocket carrying the JWST blew up on the launch pad?

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Is Physics just an obnoxious version of Philosophy?
15 posts and 1 images submitted.
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physics is dumbed-down math
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>>9005913
This. Instead of elegant and logical proofs, they do experiments and observation, just like applied mathematicians creating their algorithms.
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>>9005908

Physics is empirical, you can have empirical philosophy but in practice philosophers reject empiricism because disproves all their idiot ideas and makes them sad.

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Do I sit down to study or do I stand up to study????
11 posts and 2 images submitted.
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Just sit the fuck down you pretentious faggot
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>>9005894
No, no fucking bump. This thread is worthless. Go to /fit/ if you wanna lose weight while studying. Maybe do the leg press while doing a little linear algebra and maybe you'll learn that the reduced echelon form of the matrix of your life is the zero/null matrix because you're a complete zero
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>>9005909
Bump

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Hey evolution fags, humans are breeding dogs since 50.000 years, yet humans were not able to create a flying dog. Why? Oh, maybe because macroevolution doesn't really exist?

Evolutionfags BTFO.
15 posts and 6 images submitted.
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Has anybody ever made an effort to breed a flying dog? We don't know if it will work until we try.

My estimate it will take at least 4 generations of controlled breading to create a flying dog.
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>>9004734
lol

Will AI take over the tech industry anytime soon? I need to know whether to study up for CS or to hedge my bets as an English major.
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>>9004298
AI can, in principle, do everything except work like philosophy. Maybe consider literature instead of English.
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The takeover is already taking form.

https://www.youtube.com/watch?v=Pxt8hJgNlRU&feature=youtu.be
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>>9004298
/sci/ hates CS. But CS is obviously much better than English.

Despite other /sci/entists would say I recommend major in CS.

If wanna built the next AI instead of being replaced by an AI, I strongly also suggest a minor (or even double major) in either Math, Linguistics, Neurology, some Foreign Language or Computer Hardware Engineering.

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