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Archived threads in /sci/ - Science & Math - 1514. page

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I have many questions about living as a person with a high IQ. Let's not discuss ourselves and whether we have high IQs. The entire reason for my coming here to ask lies in Google results producing only sites on which people thinly mask bragging as discussion.

My main question lies in reconciling personal interests with the need for social interaction. A person of 140 IQ speaking to someone with a 100 IQ is much like a person of 100 IQ speaking to someone with a 60 IQ - i.e., talking to a retard. Let's say you leave graduate school and suddenly have no group of friends to discuss topics that require considerable research by yourself... is it better to focus on the social interaction itself or to find a group of friends at your level?

I am disgusted by my roommates who spend all of their free time watching television or using social media while alone. Of course, in social groups, they are in cognitively demanding situations, but what have they brought into those situations? Brains filled with stories from work and fictional content from TV.

Should those with high IQs shun socializing with people who have average IQs? It seems like many of the answers are found in imagining you have an average IQ and are to interact with groups of people with IQs around 60. Do you settle or do you seek out the 5% at or around your level?

I figure this is my best bet for an honest conversation that does not decay into what I found on other blogs - e.g.,

"I have an IQ of 178 so I'm pretty intelligent"... followed by stories about how author is constantly impressing everyone.

I dug around for a while but still want to know - besides work, how do those in the top percentiles entertain themselves in their downtime without becoming hermits?
46 posts and 7 images submitted.
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don't give so much credit to people.
go out sometimes, have a drink. don't think so much of it.
do whatever the hell you like to do at home. you don't need to discuss things with everyone you know.
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>>8227047

A high IQ indicates that you are proficient at informal, formal, symbolic and spatial reasoning.

It doesn't mean that you are educated; hence, a lot of high IQ people still seem to be idiots.

A high IQ combined with good recall and a broad education is a killer combination.

But a high IQ alone doesn't imply much.
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>>8227047
>how do those in the top percentiles entertain themselves in their downtime without becoming hermits?
>His only social outlet was the Royal Society Club, whose members dined together before weekly meetings. Cavendish seldom missed these meetings, and was profoundly respected by his contemporaries. However his shyness made those who "sought his views... speak as if into vacancy. If their remarks were...worthy, they might receive a mumbled reply, but more often than not they would hear a peeved squeak (his voice appears to have been high-pitched) and turn to find an actual vacancy and the sight of Cavendish fleeing to find a more peaceful corner".
Like this

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How do science explain the expansion of the universe? How do they know the planets and galaxies are moving away?

How do science explain the irregularity of chemistry? How does it make sense to have a universe expanding at higher speed each second?

How do science explain the essence of time? How does the velocity of an object changes its "time"? How does gravity changes its "time"?

How does science explain the great boom? Is it supposed to be logical? How is it logical to be in a non-eternal universe?

I'm sorry I just had to ask this shit.
40 posts and 7 images submitted.
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>>8226934
>How do they know the planets and galaxies are moving away?
The same way you can watch a race and see who won.
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>>8226934
Explain? There are a number of theories

How do we know it? Because galaxies are moving away from us, and unless we are the center of the universe, that tells us that space is expanding, so everyone feels that everything is moving away from them

How does it make sense? It's an observation. It's a fact. You make sense of it.

The essence of time is that time is merely delta entropy.

Look some YouTube video of relativity if you want to understand it. It's easier than in words. But in short, time is not some absolute value in the whole universe. It's relative to your speed.

We know that the great boom happened because of cosmic radiation. Yes. It could be eternal going forwards. But since time is delta entropy, when heat death happens, there won't be more time because nothing is moving.
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>>8226939
So, they compare the image "size" of the planet?
Is this the same method which they use to affirm the galaxies are accelerating?

>>8226941
>The essence of time is that time is merely delta entropy.
I don't understand.
>Look some YouTube video of relativity if you want to understand it. It's easier than in words. But in short, time is not some absolute value in the whole universe. It's relative to your speed.
It just shows an atomic clock moving at a high speed, showing that the trajectory the photon follows, is larger than the trajectory of a "static" atomic clock. That's the experiment they show.
This experiment doesn't assure the time depends of velocity. It just demosntrates that atomic clocks measure "less" time at high
velocities.

>We know that the great boom happened because of cosmic radiation
Can there be another source of the cosmic radiation?
Eternal=no-beginning,no-end
Infinite=no-end

>delta entropy
>there won't be time if nothing moves
So time is movement?
How does it work?

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Why don't people just do this?
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>>8226828
Because momentum is conserved.
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>>8226830
so just move a little bit forward and let the rotation of the earth do the rest
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You could just walk there. Takes less fuel.

Also hovering over the Earth like that, you're still following it's rotation

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>college algebra
>i'm sending out a practice test a few days before the exam, along with all the answers
>it's exactly the same as the test only with the numbers slightly changed for each problem
>half the class still drops out by the end of it

Is this just a thing that math teachers do in college?
If I take more advanced math classes will they still let me see the test days before I take it?
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Some do, some don't

it depends on the professor
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>it depends on the professor
So universes just leave it up to the professor to decide if he wants to give the class the answers to tests or not.

How many of you math majors got your major by having all the answers handed to you before the test?
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>>8226750
>babby's first year in college

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I just learned that not only do journals not pay authors for the right to publish their content, but authors usually have to pay thousands of dollars to get published +tip if they want color. This of course on top of getting subscription fees from every university on the planet and charging $35 for a six page pdf.

How old were you when you first learned this? Why is this scam allowed?
32 posts and 2 images submitted.
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>>8226574
There is a reason why the universities are pushing for open access journals.
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>>8226574
Welcome to the world of "free thought".
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I was 20ish.

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What do x-rays actually "do" asides from showing doctors your bones and giving people cancer?
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You need to be a lot more specific if you want an answer.
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>>8226123
Think of it as very dense light, it goes straight through most of your tissue but is blocked by bones and denser tissues. Your pic is like a photograph taken with this light
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It allows you to diagnose shitlaods of diseases, from tuberculosis to tamponades to fractures. One of the most important technologies that changed the world.

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Hello /sci/.

Here's the deal. I'm working in something real nice. And I'm hitting a computational power block. Basically, I need to multiply polynomials fast, and I can't risk losing accuracy. The polynomials have about 10^5 or so terms, 15 variables and are of degree about 10~20 in each variable.

For this matter I was considering FFT, which seems no good because of precision problems, and NTT and Karatsuba, which don't seem to improve anything with such sparse polynomials.

So, what would you do sci?
26 posts and 1 images submitted.
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did you try wolfram alpha?
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>>8226126
I have tried mathematica, yes. Simple "solve and eliminate", groebner bases, and an old implementation of Wu-Ritt. It falls quite short. I made my own C++ implementation with Wu-Ritt but it's struggling.
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Have you considered overclocking your computer?
It might help.

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What's gravity? How is that force generated? Where's it come from? Can a machine be created using gravity as a power source?
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>>8226096
dam in nevada harnesses the power of gravity. top secret shit. hoover type shit bruh
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>>8226108
don't lie to me
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Apple falls down, doesnt fall back up

Cant explain that

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I have a hard time believing that we're just animals. No animal on this planet comes close to our intelligence. Are humans freaks of nature?
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>>8226063
Just take this as proof:
https://www.youtube.com/watch?v=mAPBm_0ftAY

Assume the axiom of choice, of course.
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I'm pretty sure we're not plants, fungi, or bacteria.
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>>8226063
humans are not just animals.

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I noticed an inconsistency in reality and I want to see you science worshippers try to explain it. This might be a bit hard to explain but here it goes.

Yesterday I was looking into my iPhone screen, as if it were a mirror, to see something on my face. And I noticed strangely, that I could see my face fine, but a building in the background reflecting off the phone was blurry, I would have to re-focus my eyes to see the building in the reflection as if the building were actually further away in the reflection than my face is. Just like if you look at your finger right in front of your face, an object far behind it will be blurry, so to then see that object you have to focus in on it.

This should not be with a reflection. How can that even be explained? Everything reflecting off of a mirrored surface is exactly the same distance from you. The same distance as the surface of the mirror from you. Because it all exists on that surface and is just light bouncing off. How can it be to see one thing on the mirror requires me to focus my eyes a different way than to see another object on the mirror?

This doesn't happen when looking at a static picture for example, you can see all things equally regardless of distance. I believe this is because we live in a simulation, and just like a video game, real time reflections are generated quickly by using unprocessed visual data, to conserve CPU because they must be updated every frame. But a static picture is a pre-cached one time thing, that only needs generated once.
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>>8225976
>>>/x/
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>>8225986
The core question of this thread is science related you shill.

Why does reflection still require me to re-focus my eyes based on distance when no distance exists inside a reflection? Reflections are just light bouncing off a surface all at the same distance, regardless of the object's distance from the viewer.

So why would focusing my eyes make any difference at all?
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This is 100% unexplainable. No scientist on Earth can answer it.

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ITT, things you think are probably bullshit, but you can't prove they are because our knowledge of physics is incomplete

>increasing entropy is a fundamental property of the universe
>the Carnot cycle represents the absolute efficiency limit for any thermodynamic process
40 posts and 4 images submitted.
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>>8225954
Things you think are bullshit because you don't know anything about them.
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>>8225954
>increasing entropy is a fundamental property of the universe

The universe has an end m8
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>>8225954
>dark matter

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Is the engineering curriculum easy after you learn the fundamentals(calculus, chemistry and physics)?
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>>8225906
No, the calculus, chemistry and physics are the easy part.
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>>8225906
Isn't that all you engineers learn? Plug and chug integrals?
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>>8226023
No, EE is practically Applied Functional Analysis Engineering

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How much German, for example, are we expected to know at admission to doctorate school for Mathematics?
15 posts and 1 images submitted.
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>>8225794
Besides names, know what Eigen, Freiheitssatz, Nullstellensatz, Verschiebung, and Hauptvermutung mean. Führerdiskriminantenproduktformel if you are going into algebra. (Disclaimer: Has absolutely nothing to do with Hitler. Totally.)
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>>8225794
You need to know 2~3 foreign languages so if your German is nonexistent, you better have good French and Russian.
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>>8225794

Hi OP. I don't know how much you need to know, but here are some links to multilingual technical dictionaries once you do start studying.

general

http://math.stackexchange.com/questions/164553/dictionaries-and-resources-for-translation-of-mathematical-terminology

german (from above link)

http://mathdict.chitanka.info/en/de-en/

Are Electrical Engineers required to know how to code? If so, doesn't that make them far superior to Computer Scientists (I know coding isn't the only requirement)?
23 posts and 4 images submitted.
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>>8225715
>Are Electrical Engineers required to know how to code

Yes, typically Matlab and C++.

>If so, doesn't that make them far superior to Computer Scientists (I know coding isn't the only requirement)?

Even majors that don't require coding are far superior to computer science.
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>>8225715

Go to any university electrical engineering program and look at program syllabus. Youll see that a lot of the courses are based on circuit design, physics of electricity and so forth. Yes there is some coding, but no thats not what an electrical engineer is supposed to do. Think of tesla + elon musk when you think of electrical engineering
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>>8225715
>Are Electrical Engineers required to know how to code?

all engineers should know how to code. its par for the course.

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Math is Cryptic for me. I want to do a total restart. I feel like i know NOTHING about math. Lets given that feeling as a true fact. Can anyone please give me frees sources where i can learn from scratch and i mean scratch (starting with + and - etc.) to more difficult math? Something like an ultimate guide or a website to do so would be great. Easy explanations and tests would be awesome. Anyone knows something like that?
45 posts and 9 images submitted.
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That's such an awful way to go around

What an absolute waste of time

Just take Calculus 1 and learn what you need as you advance
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>>8225617
https://usamo.files.wordpress.com/2016/07/napkin-2016-0718.pdf

Evan Chen is bae.
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>>8225622
why?

>>8225624
looks good ill have a look at it, thanks

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