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Archived threads in /sci/ - Science & Math - 553. page
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File: insomnia.jpg (194 KB, 900x598) Image search: [Google]
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Does insomnia facilitate creativity?
23 replies and 3 images submitted. Click here to view.
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>>7719660
Sometimes, but I haven't really found it to be so.

Sleep deprivation facilitates deep and blunt honesty, and introspection. Though sometimes I suppose it can provide the means for inspiration, but lack the ability to really do much with it.

Sleep deprivation seems to shorten the mind's general processing chain, and the width of that chain as well.
>>
>>7719662
What evidence is there for you to assert that sleep deprivation simulates "deep and blunt honesty and introspection?" Is this just personal experience? What do you mean by the minds "general processing chain?"
>>
>>7719685
>What evidence is there for you to assert that sleep deprivation simulates "deep and blunt honesty and introspection?"
It's an anecdote.

I'm sure I could dig up some literature on fMRI studies showing a shift in what brain regions are most active during certain tasks, and as a general baseline, then extrapolate that to memory and reasoning, etc. Or observational studies, changes in brain chemistry / hormone secretion. All that. But it's just an anecdote...
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>memeing over mechanical or compsci
>forgetting that civil is the reason you even have a house and roads to travel on

It's pretty much the best branch of engineering, why do people forget this?
26 replies and 4 images submitted. Click here to view.
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>>7719600
Civil Engineering is rather underrated. The problem with the modern discipline is that research has started to stagnate. The only active fields seem to be transportation and advances in material science propagating from other fields.

Let's not get started on the green architecture meme, optimizing heat exchange networks is not real research.
>>
>>7719609
Eh, I'd say Environmental is doing fairly well nowadays.
>>
what's aerospace engineering like?

no trolls pls

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I graduated with a BA in psychology last year but I'm looking to jump into a master's program for something outside of psych. It's a fun field but the pay is abysmal all around and I won't be able to survive off of what I make forever. I've been looking towards my local university that offers a MS in CS where you can do software development, computer systems, or computer engineering, and I'll be meeting with them this week to discuss options. But, any suggestions for something that I can get into without another bachelor's degree?
17 replies and 1 images submitted. Click here to view.
>>
You can't jump directly to a grad CS degree unless your bachelors was in math or such
>>
>>7719241
It would probably take me about a year to work up to the 300 level courses, right?
>>
>>7719241
You can, there are many programs out there that let you in if you either have the mathematical aptitude, or are fine taking the prereqs to gtake the masters. In most situations I would just retake the BS in CS, although masters are more impressive

File: literally me.jpg (47 KB, 447x599) Image search: [Google]
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What's the deal with this guy anyway? Was he just some eccentric too big for his britches or was there some fuckery afoot? Why did Wardenclyffe Tower mysteriously shoot rays of light into the sky then stop working with no explanation? Why did he dig massive holes in the ground to connect to the earth or some shit? Why did the FBI raid his offices?
12 replies and 3 images submitted. Click here to view.
>>
There is always fuckery afoot.

I'd like to resurrect Tesla so he could put the screws right to all you luminiferous aether deniers.
>>
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After unusual night, when he fired the sky above not only New York but also above all vast area of Atlantic Ocean during his experiment, Tesla suddenly left his laboratory without a clear reason and left all things untouched. As we know, he never crossed the threshold of Wardenclyffe, never visited it and never appeared on this territory. It was very strange, he didn’t take any calculation, drawing or document, none paper. It was a turning point in his public scientific work. He was living for 40 years continuously working, but he patented his mechanical discoveries only and...
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he was in contact with Blue Avian aliens

youtube.com/watch?v=MvacG_nhD34

Nootropics are recommended to NOT be used if previous history of weed or other drug use because the brain chemistry is altered nootropics such a noopept may not have their desired effect. Does DMT alter brain chemistry?

Ive never done drugs in my life, but reading about the trips of people on DMT sounded very similar to a dream i had when i was 5. (Falling through a worm hole with shortness of breath). Did i have a trip on natural DMT?
17 replies and 1 images submitted. Click here to view.
>>
doesnt you brain release chemicals similar to psychedelics while you sleep(during REM cycles)?
>>
>>7718756
I've never had any side effects from noopept.
>>
SLEEP KILLS BRAINS CELLS FACT DRUGS ARE BAD

File: 2015-12-13 15.01.12.jpg (246 KB, 1716x1134) Image search: [Google]
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Can you solve this? Yes it is possible.
46 replies and 2 images submitted. Click here to view.
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>>7718294
Given enough time, sure, but right now I care more about getting drunk.
>>
>>7718318
What you drinking breh?
>>
Where do you find problems like this?

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Hey, /sci/, /pol/ here. I have a question about the theory of evolution

Well, Darwin proved micro-evolution exists, and school teached me that his theory can explain every kind of evolution.
My question is "what about MACRO-evolution", for example, how a specie can increase its number of chromosome ? An organism with this mutation, with one chromosome more, would be sterile, no ?
15 replies and 1 images submitted. Click here to view.
>>
>being this dumb
not suprised that youre from /pol/
>>
>>7718081
Fuck off libtard
>>>/reddit/
I just want my question answered by smart people
>>
>>7718051
> /pol/ here.

oh boy...

>school teached me

kek

>My question is "what about MACRO-evolution",

There is no qualitative distinction between "micro" and "macro." What some call macro is simply micro on a longer time scale. Thus your "for example" is not really an example of anything, but just a specific question.

>for example,...
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Why are these sacred cows so revered? Especially when things like nuclear are seemingly blacklisted.
141 replies and 10 images submitted. Click here to view.
>>
Because it's GREEN™! Nukular is bad coz Churnobyl.

Never mind the terrible energy density, rarity of materials or the environmental impact of mining them.
>>
>>7716417
because they actually work.
>>
>>https://www.academia.edu/8603622/Mobile_Open-Source_Solar-Powered_3-D_Printers_for_Distributed_Manufacturing_in_Off-Grid_Communities

>>http://www.sciencealert.com/rooftop-solar-is-now-cheaper-than-grid-electricity-in-these-6-us-cities

Because it's already cheaper than nuclear, despite nuclear being established. Graphene is the next generation solar component, and it can be manufactured out of methane, co2, glucose, and many other molecules.

Why don't you justify your centralized,...
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Does knowing science make you a better person?
11 replies and 2 images submitted. Click here to view.
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The opposite, desu.
>>
No.
>>
Why so? Doesn't knowing science mean you can bring progress to the humanity? Solve energy problems? Develop medications?

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If consciousness isnt real how come IQ is real?

Checkmate Atheists! ;)
15 replies and 1 images submitted. Click here to view.
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>>7720358
Six.
>>
9
>>
>>7720358
12

File: 1440354604444.jpg (34 KB, 640x480) Image search: [Google]
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How does Lambda-calculus relate to mathematical logic and set theory?
12 replies and 2 images submitted. Click here to view.
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The typed lambda calculus with [math]\to, \times, +[/math] and bottom type is the proof theory of intuitionistic logic, and the Church encoding is a model for the Nats (like the Von Neumann naturals)
All those terms have their own Wikipedia article.
>>
>>7719806
traditionally, through the curry howard correspondence.

I think the more intuitive one is the curry howard lambek taken not just over CCCs, but rather over topoi (at least I usually imagine semantics are possible because there is a "truth object" - some "table" of truth values G such that maps A->G correspond to subobjects of A).

I believe that adding this puts a few more restrictions on the logic and calculus (martin lof?) But I really don't care that much because I never run into expressiveness issues.

But yeah, basically, curry howard lambek says exponentiating in a cartesian closed category is lambda abstraction is a function symbol etc.
>>
>>7719922
after googling, I'm wrong. The jump to the traditional topos semantics is non trivial. However, the CHL and exponentiation example are true.

File: Capture.png (24 KB, 971x401) Image search: [Google]
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This one has been bothering me for days, supposedly if A is identity matrix, det(A) has to be 1, does this mean if the determinant of a matrix equals 1, that matrix has to be necessarily the identity matrix?
I don't even know where to start with this... Any ideas?
32 replies and 4 images submitted. Click here to view.
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>>7719569
row 2 and 3 are flipped then row 2' is multiplied by δ and row 3' by γ so det = 1 => det = -δγ
>>
>>7719569
What happens to the determinant if you multiply a row by a constant?
>>
>>7719569
>if the determinant of a matrix equals 1, that matrix has to be necessarily the identity matrix?

det(
[cos(Ď•) sin(Ď•) ]
[-sin(Ď•) cos(Ď•)]
)=1 for all Ď•

File: studyingniggah.jpg (49 KB, 460x260) Image search: [Google]
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So, how dedicated are you into your studies /sci/?

>How many hours are you studying each day?
>Do you prefer studying at home/dorm or the library?
>Are you planning your study sessions few days/weeks before?
>Ever used or tried any stimulants to 'enhance' your study sessions?
>What was (one of) your most enjoyable moments while studying?
>Are you drinking enough water to keep...
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14 replies and 1 images submitted. Click here to view.
>>
666 XD
In ur mom
Fuggin her
DUDE WEED LMAO
Fuggin ur mom
I dunno, ur mom drinks my milk
ur dad cock (no homo)
>>
I am pretty dedicated to my studies, but that's just because just how I am, I put 100% effort into anything I do.

If i had to average it out over the whole semester i would say around 5 hours of studying a day on top of going to class. ( i never study for only 5 hours at a time, i do 12- 16 hour long sessions and then take time off other days of the week)

I know my Schedule with what projects i am doing what weekend and what days i am studying for what midterm / exam.

I have done drugs, pretty much any good one worth mentioning but not for studying......
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>>
>>7719697
TOP KEK BRUH U SO FUNNY

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What would you do if you walked in the door and found a giant spider bigger than your house in your kitchen?
16 replies and 2 images submitted. Click here to view.
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>>7719441
I'd cut the movie to the credits
>>
I would become a constructivist, since there would be a subset greater than the original set.
>>
>>7719441
360 and walk away

File: 123156575789.jpg (68 KB, 300x300) Image search: [Google]
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/sci/ WHAT the FUCK is going on?

its fucking december 14th at fucking 2am and im wearing just shorts with the fucking window open

what is going on?
17 replies and 2 images submitted. Click here to view.
>>
El Niño
>>
Thanks THE SOUTH
>>
i turned the AC on around noon yesterday

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