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Archived threads in /sci/ - Science & Math - 626. page
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Civil or mechanical? I'm thinking about doing civil since my dad is a structural engineering consultant and I'd have an easy time finding a job, but mechanical seems a lot more fun and interesting. I'm also gay so I'll definitely enjoy all the dick I'll get to suck either way :^)
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>>7635084
Do what you find most interesting.
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>>7635093
>jus b urself lol
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>>7635084
>has family job contacts
>doesnt take the opportunity
Youre a fucking idiot.

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There are approximately 7,380,936,119 people alive today.
Approximately 1/278 people has an IQ (sd15) of 140 or higher.
This correlates to preliminary approximation that 26550130 in the world who should have an IQ above 140.
We know however, that there is a large discrepancy between countries average IQ
If we are selective with our countries. Picking only developed Western countries (US, UK, Canada, France, Germany, etc), developed Eastern countries (China and Japan), and Australia, we get an approximate total population of 2,248,685,974, of which at least 8,088,798...
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I think you need a hobby
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>>7659440
Also, pick any country, I didn't mean to imply you had to pick Switzerland, Hong Kong or Israel
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>>7659440
I've always wanted to build a new city state in international waters and call it "Atlantis".

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Considering the vast number of people who have ever lived and the fact that we've only recently begun keeping rigorous records of longetivity, do you think a human has ever lived past age 122?
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>>7659322
Methuselah was over 900
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Yes, the Bible has many reports of such people.
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Almost certainly not. If living to 122 is 1/7 billion now WITH modern medicine, it would be an even smaller likelihood in the past, and since there weren't 7 billion people living in all of past history combined, there's basically no chance.

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hey /sci/, I always hear the argument that intelligence, specially IQ test results, is more a matter of economics and privileged birth than anything else. I can see that but on an anecdotal level I've always wondered about myself.

I was born poor in Southern WV, in the late 80s to a household that's income was mostly from a parental disability check(step parent) and of course food stamps. Income was about $500 monthly, so about $6000 yearly gross income.

I was a lazy shit early in my schooling and so by turn of events ended up needing IEP plan. For those...
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> What environmental factors contribute to intelligence?

I truly believe intelligence partly comes from genetics, partly from social environment and the amount of challenges you had to go through.
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>>7659239
>household that's income
>140 verbal
Okay.

Also, if you were one of the older students in your academic year, you obviously have more time to develop and will get a higher score by virtue of that.

http://www.bbc.co.uk/news/magazine-15490760

Link related
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>>7659257

I was born in May.

But i didn't get an IEP plan until 2nd grade.

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What is more impressive to you?

A) To prove a new theorem in mathematics that clearly has applications that would be very useful.
B) To find/prove a new theory in physics that explains a lot of things and thus has applications that would be very useful
C) Proving the mechanism for a chemical reaction or creating a chemical compound that has applications that would be very useful
D) Discovering something new in biology that has applications that would be very useful

And for students or people with degrees of science, is your major the same as your answer?
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>>7659159
>B) To find/prove a new theory in physics that explains a lot of things and thus has applications that would be very useful
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>>7659159
>B) To find/prove a new theory in physics that explains a lot of things and thus has applications that would be very useful
This is the most significant, can't argue with that.
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The 4 are important but I would still go for B

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Hey I was wondering why we need to warm up and stretch before exercise. I don't see any advantage so to me it seems useless.. Many times when I'm at school I "skip" the warming up and I still do the next exercises as well as everyone else does, or even better because I'm not tired from the warming up.
I'm sorry to ask this on /sci/ and not on /sp/ but I want some scientific explanation behind this, not just a pleb telling me that it is good because it is good and that's it. Although I find many people in 4chan very ignorant, I still think...
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>>7659092
When I was in middle school one gym teacher told me that if I didn't cool down, my heart would explode and I would die. I believed him for years, and that scared the shit out of me.
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>>7659092
>warm up and stretch
You do realize that these two are completely different things right? You should NEVER stretch before exercise.

In any case this thread belongs on /fit/.
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>>7659120
I'm sorry if I'm too ignorant on this topic, but why should we never stretch before exercise?

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How do you get addicted to things that are productive instead of things that are unproductive like procrastination?
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It's harder I'm pretty much addicted to CAD, math, programming, electronics but it's exhausting on my mind, think working out , people are addicted to working out going a couple of hours everyday because it takes a huge toll on your body , the addiction pretty much lies in the daily consistency.
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>>7658968
Genetics.

Not even shitposting. There's a higher reward payoff/work for people who are more academically inclined, and academic performance is largely due to your genetic phenotype.

http://www.nature.com/articles/srep11713

>tl;dr: /sci/'s elitism has been vindicated.
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>>7659002
>everything is genetics
Almost everything that people think is "genetics" is actually environment or at most a combination of both. Take a person out of a culture in which he would normally be expected to have poor academic performance and put him in an environment that would encourage high academic performance and guess what happens? It has very little to do with genetics.

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I got a good one for you /sci/.

Does or does not, centrifugal force exist?

Debate/Explain.
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>>7658569
None of that image makes sense.
If this were the case, then the object would travel in a straight path because the "centrifugal" and centripetal force terms would cancel, and "path of inertia" is absolutely retarded. Inertia is not a vector.
Centrifugal force is real when you construct the system in a non-rectilinear coordinate system. Not otherwise.
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It's as real as gravity.
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>>7658575
>Centrifugal force is real when you construct the system in a non-rectilinear coordinate system. Not otherwise.

can you explain that please?

I was always told that centrifugal force is not real and is only a misconception caused by a lack of centripetal force.

as in there is no force pulling the ball outward, there is only the centripetal force and the path of inertia, the ball flying away form you if you let go is the inertia without centripetal force acting on it any more

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Gadolinium oxide NPs are the most effective contrast agents in MRI, due to Gadolinium having the largest number of shell electrons. Having seven outer electrons allows efficient magnetic coupling of Gadolinium to nearby protons. (Jelinek).
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Atherosclerotic plaques are a telltale sign of heart disease. To image them, LDL NPs coupled with gadolinium ions can be used.
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>>7658537
I loved gadolinium's performance in the sopranos. That was some nice imaging
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>>7658611
what is this, a render from 2003?

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What is a great studying technique/s? And works. Please help
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>>7658519
Adderall
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Reading stuff, pretty much
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Listening to this:

https://www.youtube.com/watch?v=NP6_hIDiBEw

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Hey /sci/, quick question that's been bugging me for the past week or so.

Imagine a 3x3 grid of nodes (I guess, I don't know the exact terminology) as in pic related.

Now, imagine a mouse, cursor, ant, or whatever; it starts at any node, and draws a line to any adjacent node (orthagonal or diagonal).

Going from the starting node to another is a shape of length 1, going from that second node to another is one of length 2, and so forth.

Now, my question is, how many possible variations are able to be drawn, of any length n, within that 3x3...
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Also bump, for interest
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don't
stop

bump
ing
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OP here, glad to see someone else is inerested. bump.

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i'm retarded

can you understand the maxwell equations intuitively with average IQ?
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>>7658297
They are not intuitively, they are empirical.
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>>7658297
Omg dude you don't understand them? How stupid are you?

I independently discovered them on my own when I was only 6. Shits basic anon.

No but really don't feel dumb just cause you find something hard to understand that doesn't mean anything. Dumb people are people like the guy in that relativity thread who think an idea must be wrong just because they don't understand it.
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Certainly you can understand them to some extent... it's just a matter of putting in the time. IQ means way less than being willing to sit down and concentrate, day after day.

How much you get out of it will vary. I have a master's degree and have worked with them for years, and I don't understand them fully, all the implications and so on. The world is really complicated.

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Is MBTI legit?
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>>7658103
It's bullshit
People answer based on how they perceive themselves and then act surprised when the results match how they perceieve themselves.
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>>7658103
people cannot be simplified into 16 personality types
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>>7658103
how about just googling it instead of making pointless threads?

here's the 30s work you could have done yourself OP:

https://en.wikipedia.org/wiki/Myers%E2%80%93Briggs_Type_Indicator#Reliability

>The test-retest reliability of the MBTI tends to be low. Large numbers of people (between 39% and 76% of respondents) obtain different type classifications when retaking the indicator after only five weeks

it's a horoscope for people who falsely think of themselves...
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What math does one need to know to fully understand all the cutting edge concepts of machine learning, to be able do do research in machine learning?

I'm talking about fields like kernel methods and neural networks with the recent boom on deep learning.
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_action input
_mutate x100 variant
_select best output
//repeat

congrats. now you have a machine that learns through trial and error and goes with the best option until it figures out how to perform a task.
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>>7658030
I thought computer science was for bad math students that still wanted to make bank.
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>>7658030
Probability theory, linear algebra, topology, and some amount of of differential equations. Really though you're better off studying machine learning itself, most of the content is baked into the methods of the field itself. At least in my opinion.

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When did magic divorce itself from science?
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it didn't
but you're supposed to think it did
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>>7657790
Actually it was integrated into science when they discovered quantum mechanics ;)
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>>7657795
this, you wouldn't believe the kind of stuff DARPA gets into (remote viewing - not really magic but yeah)

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