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Archived threads in /sci/ - Science & Math - 1415. page

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Indian here. At my uni we have a program that lets Indian students that have grown up abroad come here to do their undergraduate. According to the uni site they have to have a SAT score of 2000 minimum. However, a PhD student at my uni told me that they had so many applicants that had 2400/2400 on the SAT that they actually had to implement an extra stage (an interview) for admission.

I know people on here meme about the American education system, but is the SAT _that_ easy? If yes/no, why?
22 posts and 1 images submitted.
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>>8313316
POO
>>
>>8313316
Commit suicide
>>
>>8313316
The SAT is pretty easy for many people, but not necessarily 2400 easy. The thing is that if you get a 2400 on the SAT, you may be the top 0.1% or 0.05% (or whatever it is), but when you consider the number of people that take the test, you will have a fairly sizable group that scored 2400. It's not that it's easy (though it is in comparison to something like the LSAT or MCAT), it's just that perfect scores happen and they happen every year. On top of this, the SAT is basically a glorified IQ test. Anyone with an IQ over whatever 2400 corresponds to will still score a 2400 on the test (in theory), so you could expect to see a slight bump in incidence at the 2400 level if looking at the bell curve.

I'm old as fuck and need new material for my course outlines (Precalc level).
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A mathematician, an engineer, and a statistician go deer hunting. After a while, they spot one.
The mathematician does some detailed calculations, takes aim, and shoots. However, having forgotten to account for the wind, the shot lands 5 metres to the left of its mark.
The engineer steps up, and, seeing the mathematician's mistake, points the rifle somewhere off to the right and shoots. Having overcompensated, the shot lands 5 metres to the right of the deer.
The statistician yells "We got' em boys!"
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>>8313289
have heard it before but still kek
>>
>>8313289
don't get it

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How difficult would it be for a state to hide nuclear reprocessing facility underground, reprocess plutonium from research reactors and then produce an implosion device from said plutonium??

This seems entirely feasible by any developing nation.
12 posts and 1 images submitted.
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>>8313252
well in any case you'll need to get a tinfoil hat and build an underground bunker if you want to survive
>>
>>8313343

if you have no knowledge to share then kindly stfu
>>
>>8313252
Research reactors use highly enriched uranium, where would they get it?

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you decide
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This is why physicists belong to /x/.
>>
If you hypothesize that something is going to be 2 but it is 3
then hypothesize that something is going to be 3 but it is 4
then hypothesize that something is going to be 4 but it is 5
and so on

your formula is not entirely wrong, there's some unknown variable that adds up 1

that unknown variable is called... DARK
>>
Equations don't have a solution in your number system?

[math]
x^2+1=0
[/math]

Add a hypothetical 'dark number' which satisfies the equation.

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Does someone with a very high IQ experience consciousness on a higher level than someone with an intellectual disability? Is consciousness dependent on intellect?

Another way to phrase it; is intelligence a measurment of consciousness?
16 posts and 1 images submitted.
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>>8313137
Is your refrigerator running?
>>
Consciousness can be neither measured nor observed.

>If something cannot be measured or observed it does not exist.

We aren't even sure what consciousness is.
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>>8313143

this could be confusing for people with autism.

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Why is D the answer? And why do permutations matter?
11 posts and 1 images submitted.
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P(n,n-5) = n!/(n-(n-5))! = n!/5! = n*n-1 *...7*6
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>>8313075
Is there an easy way to figure that out? That is just jibberish to me. I just usally use the nPr key on the calculator but I cannot do that with no letters
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>>8313061
Properties of random permutations can help analyze the performance of sorting algorithms, for one

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I am a flat earther .... i am watching EVA Russia in space and im watching.... and i hear bubbles when the camera moves around LOL..
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buy a phone camera, an arduino, and a helium baloon, with some electronics skills you can make yourself a simple device that will go to the edge of space and capture the earth from space., you'll see the curvature of the earth.

https://www.youtube.com/watch?v=EqPqtQrtn5Q
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>>8313013
There useing a fisheye lens to make it look round lol
>>
>>8312991
You're just a stupid Russian.

It's okay, your whole ethnic type is, generally, the most retarded of the Caucasians.

Hi /sci/ i´m starting my career in physics, so, which do yo think is the best calculator that would help me work now and in the future?
27 posts and 5 images submitted.
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>>8312941

If you're starting a career in physics, then you should already know what calculator works best for you
>>
>physics
>>>/x/
>>
TI-83/84 is fine

Hell, engineer here, im in my 3rd year and only use a TI-30XII.

TI-84CE, Casio FX-CG10 and HP Prime are on my wishlist tbqh pham

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Barnett's infinity is the largest known infinity. A set is said to be "Barnett Infinite" if there exists a bijection between the set and the set of Barnett integrable functions [math]\mathcal{B}[/math]

[math]\mathcal{B}=\left \{f \in C(\mathbb{R})~:~\int \int \int f(x)~{\mathrm{d}^3 x}\leq \frac{-e^{i\pi}}{11.999...}\right\}[/math]

An interesting theorem is that a Barnett infinite set is infinitely more infinite than any countable set (Barnett, 2012).
12 posts and 3 images submitted.
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>>8312908
[math]\mathcal B \subseteq C(\mathbb R)[/math] so [math]|\mathcal B| \le |C(\mathbb R)| = \bigl| \mathbb R^{\mathbb Q} \bigr| = \mathfrak c^{\aleph_0} = \mathfrak c < \mathfrak c^+[/math]

go meme somewhere else
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>>8312908
But every student knows there is precisely one unique Barnett-integrable function to within isomorphism familia
Check your proof
>>
>>8312908
>>8313052
stop talking nonsense
this filth bumped a perfectly good thread off page 10

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What happens when an unstoppable object collides with an unmovable object?
15 posts and 1 images submitted.
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they pass through each other
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>>8312882
we don't and can't know, no such pair of objects exists
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>>8312882
Where are you going to find an unmovable object?

Ultimately, all objects are in motion.

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http://www.liveleak.com/view?i=faf_1472497928

What is happening here? Some kind of seizure?
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>>8312813
>>
>>8312813
god damn that's pretty disturbing
>>
>livelink

Nope

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What's the craziest/most interesting concept/idea of math you know of?

l've just discovered you can evaluate real derivative/integrals using complex numbers by converting them to complex numbers to evaluate an easier derivative/integral there and then come back to the 'real world' by taking the real or imaginary part of that result. lt just blew my mind
11 posts and 1 images submitted.
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>he hasn't seen the true magic of calculus via mechanics
>>
That's not what Laplace Transforms do
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>>8312775
>converting them to complex numbers

You don't convert them, rather you "view" them as complex numbers. For example, the real number sin(x)·e^(b·x) can be viewed as the complex part of e^(x·(b+i))

It is possible that an object with mass, go to 99.99% the speed of light?
16 posts and 1 images submitted.
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>>8312748

Not just possible, happens all the time with muons for example
>>
>physics
>>>/x/
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>>8312748
as long as it doesn't meet or exceed

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Is this just bullshit philosophy /sci/. Can anyone explain to me what this is?
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It's written by physcists, hence the /x/.
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>>8312689
It's not even real philosophy.
>>
>>8312689
>MD
nope. I only accept PhD.

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How the fuck do you guys remember things/learn things? I'm an asperger ridden autist(diagnosed)and I dropped out of Middle School, and I've been studying my fucking dick off for the past 4 months for my GED.

I want to get my GED and then go to college for computer science. I've discovered I really really love programming. To the point where it's all I even do anymore on my PC aside from studying.

So far, I've found that I'm able to do reading and language arts perfectly fine, but SCIENCE AND MATH. Science and Math are my two most difficult fucking subjects.

Math, I have problems with Algebra. I know how to do equations and stuff now, but I still keep getting problems I can't figure out how to do. That's ok. That's just a practice thing.

But then Science. Science I flat out just can't absorb jack shit.

I've read the definition for Mitosis and Meiosis and Genes and DNA like, 25 times now, and it WON'T FUCKING CLICK.

I need to have an understanding of Life Science, Physical Science, and maybe Earth and Space science(although that only takes up 15% of the test).

How do I absorb this shit?

It's so fucking frustrating how if I'm reading about something programming related, then I just fucking read over it once, and I automatically understand everything I just read and am able to recall all information on a whim like a dictionary.

Has anyone else had this problem before? I ask you, sci, because Science and Math are my two worst subjects.
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>>8312655
DAHNALD
>>
THE DELEGATES
>>
You have to be actually interested in things to learn them well. If you're an apathetic fuck who found one thing that actually interests you, you're still not gonna give a fuck about anything else.

Writing/read are no problem cause you do that everyday on the computer.

You need to figure out why you're apathetic and develop at least some interest in what you're trying to learn.

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