Archived threads in /sci/ - Science & Math - 441. page
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https://www.quantamagazine.org/20160112-string-theory-meets-loop-quantum-gravity/
What do you think /sci/? Are we finally going to have
>muh TOE
or is it just another meme?
>popsci
literally fuck off
> theories meet theories to create more theories which have nothing to do with science or reality.
We should have a separate board called /pop/ so we can eliminate the %80 of the non-sci threads posted on this board.
Ì'm looking for a Forum on study Techniques, one thats pretty broad and preferably with sub forums on nootropics and amphetamines etc.
Any suggestions?
Also General Study thread
the butt is real
>>7790368
4chan tip #69
-If you intend for your post to be taken seriously, never attach an image with better tits than your post.
With that out of the way...
Who is this semen demon?
>>7790380
The Facebook link is in the filename, I pulled it from some cosplay page maybe a year ago
/sci/, what can you tell me about pyridoxine (vitamin b6)? Especially about seizures caused by overdosing on it, how are they like, how long after the take is cut the symptoms stop and do they leave other neurological problems?
>>7790303
I was once tested too high on B6. No symptoms experienced at all. You will probably need to get downright insane doses like triple of what is considered normal amounts of B6 to attain seizures.
So does the 'random' behaviour of particles just stem from the the fact that the momentum of the particles they hit is basically random?
>>7790195
bump
>>7790195
>so randomness stems from randomness?
Truly a deep conclusion that you must have spent years, NAY, DECADES constructing. You are definitely, the einstein of our time. A genius to rule over everyone else. Please apply to MENSA and CERN right away, humanity needs GREAT THINKERS like you at the top of the pyramid.
>>7790456
>pithy straw man
Ayy
In Lambda calculus, how can I make a lambda expression input the abstraction (the definition) of another Lambda expression?
Like, if I have a lambda expression which multiplies x by 3, I want to input "the expression of multiplying x by 3".
>>7790190
I don't understand what you're asking. Can you explain in more detail?
Reading through these lecture notes might help as well.
http://arxiv.org/abs/0804.3434
>>7790221
I want to input a lambda expression as a lambda expression, and not as what it outputs.
An equivalent with traditional mathematical functions would be this:
Inputting a function as it's defined using set theory, instead of just inputting its output.
For example, the function f simply inputs the result of g here: f(g(x)). What is desired is to input the definition of the function - its domain, range, and all the tuple mappings between the two.
>>7790245
First of all, in set theory, functions are actually just sets of ordered pairs.
For instance you may have a function
[math]f=\{(1,a),(2,b),(3,c)\}[/math]
Then saying [math]f(1)[/math] actually means you're evaluating [math]f[/math] "at" [math]1[/math]. In other words, [math]f(1)[/math] is not a function, it's just an element of the co-domain. I.e.
[math]f(1)=a[/math]
So writing something like [math]f(g(x))[/math] is just f evaluated at "g evaluated at x". If you...
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Hey /sci/,
does anyone here have medical knowledge and can tell me, if it is possible, to keep one eye closed for the rest of their lives? Besides amblyopia, the eye is completely healthy. Would the eyesight be affected it would stay close for a year and then reopened again?
>>7790133
If you're embarrassed about having a lazy eye, just get the surgery to straighten it. It's a really simple procedure.
As to your question, the eye would be fine if you didn't use it for years, in fact it might even be better off without all that wear and tear.
>>7790133
It probably wouldn't be an issue. If you were to do something like this as an infant it could result in an underdeveloped primary visual cortex but if you're older than that you shouldn't have any permanent deficits.
>>7790133
Yes it would cause problems.
Your brain would learn to do everything with one eye only and when you open your eye up again after the year it would have to re-learn a lot of things again.
Try it and document your findings for science m8.
I'm not entirely sure if this is the right board to ask, but here's my quick question.
I'm writing a character who's suffering from depression, PTSD, insomnia, and anxiety. What kind of medications would normally be prescribed?
>>7790061
>PTSD
Well the VA spent $700 million prescribing anti-psychotics for PTSD over 10 years and concluded they don't work.
>depression
fucking lol, anti-depressants are no more effective than placebos for the vast majority of patients. See Irving Kirsch.
>anxiety
benzodiazepines are tried and true but habit forming
>insomnia
ambien and lunesta work, but are not magic...
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>>7790061
>I'm writing a character who's suffering from depression, PTSD, insomnia, and anxiety.
>What kind of medications would normally be prescribed?
Murder/suicide
What does it mean when some people say that big bang is not an explosion?
Explosion: a rapid increase in volume and release of energy in an extreme manner
...Isn't it technically what it is? Is it a meme?
if it was an explosion, like a bomb, the universe wouldn't seem symmetric from our point of view (except if we were at ground zero)
It expanded in a bell shape.. hence the pic.
Our universe, is right now sitting at the end of the 'bell' edge on.
The current state of cosmologay is a little tragic with memers like Tyson and Cox, so that anyone studying it is referred to as a 'bell-end' in an affectionate manner.
Does Name/Brand/Prestige = Higher Starting pay + Higher opportunity? Or is this just a meme? If it depends on courses, what course does it matter in?
>>7789933
A prestigious program means
-Good networking opportunities
-Big companies directly recruit from that school
-Good opportunities to learn cutting edge stuff
-Good equipment / labs / etc.
You can turn all of that into higher pay and better opportunities, if you're not a moron, but it's up to you to do the work.
Also note that I do not say "good classes". In a research-focused university, which is what the prestigious ones are, quality of undergraduate education is sometimes...
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HELLO.
I HAVE TWO QUESTIONS:
1. WHAT THE "FUCK" IS THE RELATIVE ORIENTATION OF THE ORION NEBULA ("M42")? I HAVE FUTILELY SEARCHED ONLINE FOR ANY RELEVANT INFORMATION; IT SHOULD NOT BE THIS DIFFICULT TO FIND OUT.
I WANT TO KNOW WHERE DOES THE "OPENING" OR "MOUTH" OF THE NEBULA POINT, RELATIVE TO AN OBSERVER ON EARTH; "UPWARD", TOWARD ORION'S HEAD, OR "DOWNWARD"?
2. THERE ARE FOUR PRIME "STARS" THAT COMPOSE "ORION'S SWORD"; THEIR NAMES ARE "HATSYA", "M42",...
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>>7789887
Nigga
https://en.wikipedia.org/wiki/Orion's_Sword
>The Orion's Sword is an astronomical asterism in the constellation Orion.
>It comprises three stars (c, Theta, and Iota Orionis) under the prominent asterism, Orion's Belt.
>M42, the Orion Nebula is located in the center. It points in a southerly direction, and resembles distantly a sword.
Lota Orionis is Hatsya https://en.wikipedia.org/wiki/Iota_Orionis
M43...
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>>7789887
Lay off the drugs homie.
>>7789935
THAT TELLS ME VIRTUALLY NOTHING, BESIDE, THE INFORMATION IS SELFCONTRADICTORY; IT TELLS THAT "ORION'S SWORD" COMPRISES THREE STARS, THEN YOU PROCEED TO NAME FIVE OBJECTS.
ALSO, ODD THAT THERE ARE NO DEPICTIONS, OR PHOTOGRAPHS OF "c", AND "THETA ORIONIS".
1. I WANT TO KNOW WHAT ARE THE NAMES OF THE OBJECTS IMMEDIATELY IDENTIFIABLE FROM EARTH'S SURFACE WITHOUT IMPLEMENTS.
I AM NOT INTERESTED IN SCHOLASTIC CONSTRUCTS/FABRICATIONS, OR IN ALLEGED OBJECTS.
2....
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Lets carry out an experiment.
What would happen if I hold two magnets together in the pictured configurations and run an electrical current through said magnets?
Magnets would be mounted on a non metallic structure.
All variations of electrical charge, amperage, voltage and magnet being electrified will be tested.
Any suggestions?
> For sake of the thread, assume OPs knowledge is high school level.
They would lose their conductivity and in turn magnetism since heat increases resistance
>>7789874
My research is actually on ferromagnetic and superconducting interfaces, particularly F/F/S, so what you're describing sounds familiar as a classical spin valve.
See each magnet has a preferred spin orientation, giving them their magnetic field. Thus when a current is ran through a magnet, not only is charge being transferred but the spin is as well. When current runs from a normal metal into a magnet, spins matching that of the ferromagnet will pass through with ease but the opposing spin will either...
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>>7789897
Thanks for your answer.
Now if you'll excuse my ineptitude in the subject.
Would you care to explain what you wrote in a way easier to understand for someone not versed in the subject?
Also, lets take this variation of the setup.
Magnets set with poles that repel, facing each other.
Low voltage, high amperage positive current run through both magnets.
What would happen?
>I would be actually doing the experiment if I had the materials
You have been sent back in time to the medieval age with nothing but your clothes. You have sought out a leading academic of the age. You offer knowledge in exchange for food and shelter.
How do you explain the following to him:
Evolution
Electricity
Flight
Light
Time
>>7789847
Evolution
>sex, food, and time
Electricity
>arrows, dots, and squigglies
Flight
>more fucking arrows
Light
>squigglies, arrows, and dots
Time
>fuck you
>>7789847
realize I don't speak a lick of medieval italian, let alone modern italian and starve to death
If I merely get sent back in time without my location being moved, I die in the vacuum of space. If I get sent back in time with me having the same location w.r.t. the earth, I'm in a very sparsely populated area of north america and I'm probably going to die alone.
>>7789870
looks like you're going to die, sorry anon
Can we have this thread again?
No.
>>7789836
No.
Daily reminder that the most highly-cited Physicist of all time has a history undergraduate degree.
STEM elitists status:
B L O W N T H E F U CK O U T
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>m theory
>physics
>>7789824
Isn't he a mathematician?
>>7789859
No.
EXPLAIN THIS NERDS
close to 0 net torque on the coin I.e
Fuck jocks.
Or it didn't look like it was spinning because you were too busy scooping nacho cheese than playing a sport,
>>7789820
>Fuck jocks.
