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Archived threads in /sci/ - Science & Math - 164. page
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File: Strange.png (331 KB, 994x522) Image search: [iqdb] [SauceNao] [Google]
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The end of the fucking world? :o

>http://www.nasa.gov/feature/goddard/2016/a-strange-thing-happened-in-the-stratosphere
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>>8317024
Aliens.
>>
>September 2

fuck off
>>
>>8317024
I'm not saying it was Ayylmaos, but it might have been Ayylmaos.

t. NASA Scientist.

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So, space elevators

Are they the key to a Space Program Revolution or are they nothing more than hotair monuments to popular science?
31 replies and 4 images submitted. Click here to view.
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>>8316885

it would be very useful yes
>>
>>8316885
>implying the government would pay for it
If anything, it'd be built from the moon to earth.
>>
>>8316914

You mean a connection between the Earth to the Moon?

Disregarding the scale in question, how do you propose to have the Earth-side of the connection move across the planet to keep in place with the Moon?

I don't know where else to ask this, but google is really not being very helpful. Is there ANY place where I can get Shigley's Mechanical Engineering Design *IN SI UNITS* *HARDCOVER*, preferably 10th edition. I can easily find softcover print in SI, and hardcover in burger units, but don't they make both?
17 replies and 1 images submitted. Click here to view.
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>>8316870
i just payed 350 at the school bookstore for this, what a fucking rip off.
>>
>>8316880
But it's not in SI right? Also why didn't you order online, they seem to max out at 250.
>>
>>8316883
whats SI?

I always just walk to the bookstore and buy it if they have it. Saves me time and I get a head start on studying.

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Theories of Intelligence Thread?

You're all smart folks here so what the hell is intelligence anyway? Is it a fixed, immutable quality? Are there multiple intelligences? Is it possible to substitute knowledge for smarts? What gives?
35 replies and 7 images submitted. Click here to view.
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Intelligence is defined to be the ability to have cognitive abilities, or think. The word has been defined by us, so it's safe to assume that we're what we refer to. There's a difference between instinct and intelligence, a bird flys south for the winter because it knows it has to, and a computer follows code because it's designed to. If a bird or computer want to be intelligent, they need the ability to think for themselves, in these cases, an example would be a computer being to write their own code, and follow it.
>>
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>You're all smart folks here
Not all of /sci/ studies either math or physics.

>what the hell is intelligence anyway?
Ability to derive new information from old information.

>Is it a fixed, immutable quality?
Pretty much. You can temporarily boost it by using creatine (blood starts to better rush into your brain) or getting mild electric shocks to your brain, but the results are not that impressive.

>Are there multiple intelligences?
Of course there are. For example people who have had brain injury may sometimes lose some of their abilities while others stay. This indicates that all intelligence is not a single entity.

>Is it possible to substitute knowledge for smarts?
If you have a lot of information in your hands, you don't need to derive so much new information. So yes.
>>
>>8316913
>What the hell is intelligence?
What's intelligence for you?

For me it's the high abstration ability the human being has. You can say it's immutable, but there are different types of POV lessons that each kid have more/less difficult to understand. This cirumstance makes defining intelligence more difficult.

I think there is a innate part of inteligence, which makes it easy to associate ideas, even though your learning skill depends of your mood, physical state, goals, anti-anxiety routines, association methods, etc...
A great example are kids geniuses who got their degree at the age of 15/16.

Most people can actually do a double Math/Physics degree. It's not that difficult, but there are some requisites people don't have:
-Strong math basis
-Physics overview
-Routine stablished

I personally found time for bussiness/public relations and my "hobbies", when I was studying for my degree.

I agree it's very difficult, specially if you got autodestructive habits. But I read started to read a lot of self-improvement books and efficiency-efficacy texts which made me understand better my past depression-anxiety cycle.

>Are there multiple intelligences?
No. I think there are multiple interests that people pursuit. If you have passion for something, often you will get good with that passion of yours. But most people let their habits sabotage their dreams.

> Is it possible to substitute knowledge for smarts?
I don't understand this question.

Where can I find more .cml files to play with in Avogadro?
10 replies and 1 images submitted. Click here to view.
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git gud fgt
>>
>>8316611
wut

I'm not a scientist/chemist/whatever

I just like to play with them, where can I find some .cml?
>>
I stopped caring about biochemistry when I was introduced to the concept of enzymes. What a crock of shit. If your reaction can only be completed by inventing random coils that don't exist, like some kind of life deity , then you are fucking wrong and the chemistry is flawed. Same for protein folding solutions that basically say "the correct answer is whatever the correct answer is". Thats what the thermochemistry said transcribed to words but god forbid if i wrote in down in english instead of the ancient greek runes the teacher word mark me wrong.

Biochemistry...
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Please explain if the following practices have any benefits as recognized by the scientific community:

- gluten free diet
- alkaline diet
- raw foodism
44 replies and 4 images submitted. Click here to view.
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>>8316538

They can be all explained with mass hysteria
>>
The worst shit you can eat that doesn't get out of the body is sugar. It's more dangerous than smoking and alcohol.
>>
>>8316541
[Citation most definitely needed]

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What would happen if you drank a sufficient volume of 0.1M NaOH to neutralise your stomach acid?
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>>8316507

Your stomach would be full of neutral liquid then you die
>>
>>8316508
>neutral liquid
But why would you die? It's just neutral liquid
>>
>>8316508
And why would you die?

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is this for real? anyone familiar with this douchenozzle? i googled him and his own website says:

> David “Avocado” Wolfe is the rock star and Indiana Jones of the superfoods and longevity universe.
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>>8316430

My entire Facebook feed is basically friends liking his shit memes.

And yes, every one of them is as bad as suggested.
>>
>>8316440

Mine too. I'mma start posting this as a comment on the shares.

inb4 buthurt 40+ hippy bitches
>>
>>8316440
>>8316448
im so glad im not friends with a pack of idiots

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If two rockets move away from each other at the speed of light, isn't one going twice the speed of light from the other's reference frame?

What happens when this happens? Is one rocket causally disconnected from the other? IE no light from it ever reaches the other rocket. So in a way casually it doesn't exist anymore.

Doesn't all of this also imply that there is an absolute state of motionlessness? The speed of light isn't realitive to the object that emitted it.
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wow congrats bro you broke the universe

heres your nobel prize
>>
>>8316407
lorentz addition
>>
Lorentz is rolling in his grave

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Explain to me how ergospheres don't allow effective faster than light travel? The light cone is warped so that paths that would previously be considered spacelike (and therefore impossible) are now timelike, allowing particles to travel these paths at sub-luminal speeds. Can some anon explain to me why this wouldn't allow you to actually travel faster than light as seen by a distant observer?
23 replies and 3 images submitted. Click here to view.
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Why are there two event horizons again?
>>
Event Horizons don't exist.
>>
>>8316364
Proofs?

What exactly makes thoughts appear in our heads? Even without an external stimulus like when you are meditating or lying in bed.
12 replies and 1 images submitted. Click here to view.
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I suppose it is the summation of experience and the innate nature of our imagination.

I suppose this is why we have no memory of thought in our earliest existence.
>>
Electrical impulses
>>
>>8316030
Could it be that we have an abstract list of memories sorted by current importance and our brain randomly recalls them?

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So back in high school I remember one of my math teachers said that if we could find a "job/profession" that doesn't use math at all we could be excused from doing a project. He said there was only one student who had been able to find a job that didn't use math. Does anyone on here know of such a profession? Does such a job exist?
48 replies and 5 images submitted. Click here to view.
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>>8315997
high school math teacher
>>
>>8315997
English teacher.
>>
every job in existence
t. biologist in revelopment & desearch

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Can you guys help me find the left anterior insula on these MRI scan images of my brain?
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>>8315944
>>
>>8315949
Would you say that there's an unusually low volume of gray matter in the left anterior insula than there should normally be in people?
>>
>>8315944
I don't know how to break this to you OP but you're a brainlet. I know this from the pixels and seeing a lot of MRIs in my time.

Sorry op. Take care.

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I will be defending my Ph.D. dissertation in the near future. I'm getting nervous. Has anyone else gone through the dissertation defense process, and if so, do you have any advice?
14 replies and 3 images submitted. Click here to view.
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Add a lot of naked lolis to the slides
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>>8315805
My department does the public and closed-door sessions separately. I've already done the public part, now just the closed-door with my advisory committee (6 members, including major advisor). That's the part that is generating anxiety.
>>
>>8315765
Practice your speech again and again and again.
I did nothing but that for the two weeks preceding my defense because I was anxious as fuck, until I could just give my speech in a daze.
It went well.

The questions will be the hard part, of course. Just don't bullshit if there's something you don't know or missed.

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good news! we can now store the bible until the end of the universe, so the new universe will have the word of god too!
34 replies and 8 images submitted. Click here to view.
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Just to be clear, I’m not a professional ‘quote maker’. I’m just an atheist teenager who greatly values his intelligence and scientific fact over any silly fiction book written 3,500 years ago. This being said, I am open to any and all criticism.
In this moment, I am euphoric. Not because of any phony god’s blessing. But because, I am enlightened by my intelligence.
It's almost sad y'know? You little idiots actually believe in the fantasy drivel your little age old book of fairy tales tells you. And what I personally find even sadder (and quite frightening...
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>>8315713
>End of the universe
>In 14 billion years.
Anon.
>>
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>>8315735
>there are mindless people out there both young and old who think your kind has all the answers when its clear as day that you would rather "pray" a problem away than actually do anything of substance to work towards addressing if not fixing it. Those people are the scariest because they will blindly follow a faith or movement without any sort of critical thinking or a second thought.
This is actually true. I know this is a copy-pasta but still.

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>in precalculus with other muck-dwelling brainlet scum
>in a study group, first I've ever been to
>work on the problem a little, end up getting x^-2 = 9
>everybody comes to a consensus that the answer is 3 because the square root of 9 is 3
>they tell me to double check my math because (1/81) seems way off
>tfw cursed with terminal brainletism

how the fuck do you do math?...
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25 replies and 1 images submitted. Click here to view.
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>>8315481
fucking awful bait
>>
>>8315481
x^-2 = 9
(x^-2)^2 = 9^2
x = 9^2
x = 1/81
>>
>>8315547
bravo

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Is math invented or discovered?
38 replies and 4 images submitted. Click here to view.
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>>8315217
Invented, of course. Constructed actually.
>>
>>8315217
>or
The classic dichotomies, with few exceptions, exist because endless arguments can sell endless ink and paper, not because they are interesting or useful.
>>
What if math was never invented?

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Hi /sci/,

What even are birds?
22 replies and 3 images submitted. Click here to view.
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>>8315105

Winged fish with feathers
>>
>>8315105

Gay dinosaurs
>>
They are the last of the dinosaurs.

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How come people who like anime are more likely to be virgins?
I am not trolling here. I'm just wondering what's the science or psychology behind people watching a medium like anime, being the most likely demographic to be virgins when it comes to media consumption? Video games being the medium that follows up right behind anime.

For this question underage people are obviously excluded.
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I don't need to know why, I only need to know that I counted a few times and that it is true.

Now, I can make decisions and if I am incorrect, it is an acceptable loss or a problem with the subject for being dissimilar to my previous countings.
>>
People on the autism spectrum are more likely to enjoy anime, because of the relative lack of emotional depth, the easily readable facial expressions, and the alternative to Western social standards.

People on the autism spectrum also tend to be virgins, because they are neither physically desirable not charismatic.
>>
>>8315024
because any hobby or interest that requires you to sit alone in front of a screen is more likely than not going to be rejected by "normal" people

Man goes to the doctor, says "Doctor, I need help. My redctuonist, mechanistic view of nature and its inherent meaninglessness is making me depressed". Doctor thinks for a minute, finally he says "Well, have you tried complexity science?" Funny joke, everyone laughs.
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Man says to the doctor, "Doc, I think my wife has VD." The doctor gives himself a shot.
>>
>>8314941
>complexity science
>he needs a system of a posteriori deriving knowledge to find meaning
The Dynamiteman frowns upon your weak baitposting

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How did it develop? Were we knuckle-walkers who stood up, or suspensory apes who came down? Were we waders or root-pullers? Was it open woodlands or the savanna?
30 replies and 13 images submitted. Click here to view.
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Our closest relative os the chimpanzee, so we came from knuckle walkers. Eventually, mutations arose that shaped our physiology to stand taller, which allowed them to survive better and reproduce. Things continued to go that way until we became fully bipedal
>>
As for the environment, I'm not totally sure, but humans evolved in Africa, which contained/contains many biomes. But most likely forest, based off the natural habitat of chimpanzees and other related apes
>>
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>>8315109
>>8315115
What about Ardi? She doesn't seem to have the long metatarsals that chimps or bonobos do, and seems to have a more bipedally-oriented pelvis.

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/sci/, I just finished all of my chemistry requirements for my EE degree, and.... I miss it. I miss chemistry. Been watching pic related all morning.

What would you have done with your life, /sci/, if you only had the courage to throw away your future to recklessly pursue your secret passions?
21 replies and 4 images submitted. Click here to view.
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>>8314416
I threw away a 80k starting ChemE private R&D position to recklessly pursue my passions in grad-school.

Worth every fucking cent I didn't earn.
>>
>>8314416
I did throw away my life, as you so retardedly put it.

I live on a cheap sailboat in the Aegean sea.
>>
>>8314446
I'm sorry for how you're going to feel about that decision ten years from now.

Is it true that the higher the IQ, the higher the morality and depth of emotions a person will experience?
33 replies and 4 images submitted. Click here to view.
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Only a fucking /sci/ moron would make a thread like this
>>
I have high IQ and I'm emotionless.
>>
>>8314210
How high?

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What do you have to say about String Theory?
31 replies and 5 images submitted. Click here to view.
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>>8313878

Meme theory
>>
>>8313881
Why?
>>
>>8313884
dude dimensions lmao

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What is /sci/'s favorite chemical reaction?
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>>8313572
Cyanoborohydride reductions in aqueous media
>>
>>8313703
Though the facile alkylation of secondary amides under microwave irradiation and phase-transfer conditions is a very, very close second.
>>
>>8313572
Isn't combustion the obvious winner? It's how we burn stuff to cook food, and fuel things.

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Is it safe to drink water directly
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>>
Like, put your mouth on the faucet?
>>
>>8313104
Hypothesis: It is safe to drink water directly
Experiment: Drink water directly
>>
>>8313104
No the government puts mind control robots in the water that's why i only drink mountain dew from wendy's

What is it good for?
50 replies and 2 images submitted. Click here to view.
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>>8312824
Sheeeeeeeeeeeeeeeeeeeeiiiiiitttt

liek, wehn are we even gunno like use dis calculus shit in da real world anyway, niqqa?
>>
https://en.wikipedia.org/wiki/Convolution#Applications
>>
>>8312824
It's pretty in Laplace space

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Is going to college for mathematics even worth it?
Is there even any jobs that you can get hired at that pay a good salary?
25 replies and 3 images submitted. Click here to view.
>>
statistician, also called "data scientist"
>>
>>8312304
it all depends anon.
Do you want to be a teacher? The short answer is that math teachers make shit money unless they're at a big college/uni, which means you need a phd and tenure.

Do you want to bust your ass? Then it can pay off bigger with less school. A math degree makes any other scientific degree you get look awesome because they almost universally synergize well. Alternatively, you could get "just" a math degree, and during school bust your ass using math and a programming language...
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>>
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>>8312304
Obligatory image.

Anyways, if you are even asking this question then just don't. Don't get a degree in math. What gives it so much value is the fact that for every math grad there are 20 engineers, 5 physicists, 5000 biologists, 10 chemists and 200 computer scientists.

Don't devalue my degree with your lower IQ.

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How would one go about proving the number
$10^{30}+666 \times 10^{14}+1$
is prime?
44 replies and 2 images submitted. Click here to view.
>>
computation
you only need to check like, 10^15 numbers max
>>
>>8310723
surely there's an easier, quicker way
>>
>>8310726
there isn't

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How can we prevent AI?

It will surely doom humanity once it comes about.

Should we bomb IBM, Google DeepMind lab and so on?

Should we hire an assassination squad to kill all AI researchers on earth?

What can be done about this?
80 replies and 11 images submitted. Click here to view.
>>
>>8328957
We could start a nuclear war with everyone who has a chip fab.
>>
Don't worry, I come from the future. Everything works out surprisingly OK.
>>
>>8328964
Terminator detected.

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