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Archived threads in /sci/ - Science & Math - 651. page

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Hello /sci/, fellower 4channer from /his/ and /co/.

I am currently watching Discovery Science ''How the Universe Works'' series and they are very good and fascinating.

So my question is - are there any similiar, good, not too academic documentaries about space, universe and that entire field?
Thank you!
15 posts and 1 images submitted.
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> not too academic
go away
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>>8814637
Cosmos (the original). The Ascent of Man is fantastic if you like biology/anthropology.
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>>8814669
Okay then, give me academic ones as well.

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>tfw too smart to study
>tfw testosterone lvls are too high to give a fuck
22 posts and 4 images submitted.
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>>8814636
Won't get anywhere if you don't study
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>>8815485
>Won't get anywhere if you don't study
>mfw I realize this is what brainlet tell to themselves to rationalize their failures.
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>>8815485
>there are people on /sci/ so stupid that they actually believe there is a correlation between studying and achievement

it's amazing how an otherwise smart person can be such a brainlet

A low IQ idiot can start up a small store or get a management job with barely any education and make more money and fuck more bitches than you could ever dream of

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Why did ancient Egyptians forbid using the same fraction twice?
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>>8814612
I'll just hop into my Tardis and go ask them. brb
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>>8814612
>forbid using the same fraction twice
???
That's not how it works.

They just don't allow anything but a 1 in the topside.
They just hadn't thought of the idea that they could do that.
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>>8814621
I'm back. Apparently, they don't speak english. Gonna learn some ancient egyptian, brb

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Brainlet here.

Is there an intuitive way of looking at this? I've always took this for granted without really understand why it works.

[math]\sqrt{xy} = \sqrt{x}\cdot\sqrt{y}[/math]
11 posts and 1 images submitted.
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>>8814585
sqrt(-4)sqrt(-9) = ?
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>>8814585
[math](xy)^{0.5} = x^{0.5}y^{0.5}[/math]
>>
try thinking about it geometrically

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Someone here can prove that psychology is a science with some sources? I am on the edge about this. They use quantitative methods with statistics and also qualitative methods and some call it a science but some do not. Someone got good sources for this to argument it or just what kind of science psychology is supposed to be in social sciences? I know they are multiparadigmatic but I cant seem to find good papers or books that would summarize or imply whys and such.
21 posts and 3 images submitted.
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For starters, how could it be a science if it studies "the mind" which is an immaterial concept?
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>>8814357
It is a science. That's not the issue. It's a shit science that hasn't properly defined it's object of study and is mostly philosophers playing scientist by bending frameworks of ambiguous and interchangeable terminology around the unquantifiable to capture the wishful thinking of someone's pretense.
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>>8814357
Academic handwaving framed with the engine of confirmation bias that is the statistical method.

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why are there so many engineers, medical residents and programmers on tinder and just single in general? i thought they made it

pic unrelated
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>>8814323
Too smart for bitches
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>>8814325
Engineer here.
I'm in a long term relationship (yes, a real life grill) and I think it boils down to this:

1. People with even slightly above average intelligence are not easily amused
e.g.
>watching ESPN/Sky sports news for literally 12 hours a day doesn't keep you amused
>The idea of playing computer games for hours on end doesn't amuse you
>binge watching 16 hours of breaking bad literally seems like a waste of time for you

2. Arrogance
>"""we""" think we are above others

3. Higher prevalence of autism.
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>>8814323

Tinder has an overwhelming number of engineers because they signed up thinking that they were using grindr. Then they just never deleted their accounts.

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can someone provide me with a brief yet thorough summary on why the world's best mathematicians cannot understand his proof?
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>>8814198
>>8776174
Read the snippets or the whole .PDF.
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>>8814198
Because he spent thousands of pages making up new words and everybody else in the field had no idea what the fuck he was saying
>>
Because he basically created a new area of math that first needs to be understood by the brainlets.

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Are DMT the most valuable physical substance to the human experience, or just hippy burnout nonsense?
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>>8814136
Is*
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i'd say psilocybin is better than dmt

dmt is like a dream - you have a slim chance of even remembering the experience
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>>8814138
But if you do its mesmerizing. Its like a dream that lives on.

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What's the deal with this guy? What's his problem?
15 posts and 3 images submitted.
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>>8814101
He looks like a male version of a hot professor I fucked.

I can't take this out of my imagination Everytime I see his vids
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>>8814148
he is the professor you fucked
he is a tranny
and u r a faget
>>
>>8814150
owned

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So just for shits and giggles, how many trials should be included (assume perpetual isn't an option) to truly gauge the 'fairness' of a die?

Toying with a /tg/-related experiment, but wanted to get /sci/'s opinion. Assuming all other variables are excluded, just a simple drop and result scenario.

100 is my guess, also an easy percentile conversion.
16 posts and 1 images submitted.
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Well mate you have to make a dice throwing machine to minimized randomness,then do & record about 500 results,and calculate ratio.I don't know what the diversion ratio is,depending on your definition of fair I guess.

Or use a computer program
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لا إله إلا الله محمد رسول الله
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>>8814063
Move your Islamic propaganda somewhere else.

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https://www.youtube.com/watch?v=NgbK43jB4rQ
what
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>>8814038
how much do you get paid to shill for n*mberphiles?
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>>8814038
I can colour that map in four or less colours.
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>>8814039

Four Colors.

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/sci/ I'm thinking of doing a double major with Electrical Engineering - what other major would be the strongest complimentary to EE? Or is it even worth it?
12 posts and 1 images submitted.
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>>8813815
Do EE+Math. You'll thank me later.
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>>8813822
you're trying to meme me m8?
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>>8813831
EE is basically applied functional analysis

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Why are people told the formula for the circumference of a circle is 2*pi *r instead of just multiplying the diameter of the circle * pi which is much easier?
19 posts and 1 images submitted.
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>>8813397
The radius is a more fundamental measure.
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>>8813397
Because then you can integrate the circunference to get the area.
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>>8813397

...And particularly where the latter is the literal definition of π.

Real talk: I think it has to do with presenting extremely simple information at the late primary/early secondary educational level, OP. When you only speak of the radius, Then you can immediately phrase everything in terms of it without bogging the student down in conversion factors of 2. Of course, you could just as easily accomplish same by consistently sticking with the diameter, but I think that /sci/ will agree that the radius is a more "natural" consideration of circles and spheres.

First, express the following, respectively, in terms of the radius of each: the circumference (or, perimeter) of a circle, the area of a circle, the surface area of a sphere, and finally the volume of a sphere. We repeat the familiar formulae

[math] C = 2 \pi r \;\; ; \;\; A = \pi r^2 \;\; ; \;\; A = 4 \pi r^2 \;\; ; \;\; V = \frac{4}{3} \pi r^3 [/math]

Now do it again, replacing radii with diameters, and we have

[math] C = \pi d \;\; ; \;\; A = \frac{1}{4} \pi d^2 \;\; ; \;\; A = \pi d^2 \;\; ; \;\; V = \frac{1}{6} \pi d^3 [/math]

In terms of complexity/simplicity, this is almost a total wash, and so it's almost down to choice at this point, if one wants to consistently stick with one measurement or the others for the purposes of simple instruction. Notice how in the move from the radius rules to the diameter rules, although the circle-circumference and the sphere-surface-area rules do simplify slightly, the circle-area rule adds back (slight) complexity in the form of a fractional term. Meanwhile, in the case of the radii, the only fractional consideration which has to take place is with the sphere-volume rule. Everything else is presented as it were in "numerator" style, top-side. The student then only has 2-4 concepts that he has to master, to use the rules: simple algebra, what pi is (just some number), what the radius is, and plugging in values.

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Who are the smartest people alive today? The most promising geniuses?
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In no particular order: Sam Harris, Steve Pinker, Dan Dennett, Ed Witten, Bryan Caplan, Tyler Cowen, Robin Hanson, Eliezer Yudkowsky, Anders Sandberg, Nick Bostrom

And this is just the tip of the iceberg.
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>>8813332
forgot someone
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>>8813332
>Sam Harris

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All right Kids
Ruby vs Javascript vs Python,which is the best?
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>>8813180
>>>/g/tfo
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>>8813180
I like PHP + Javascript. I hate web orogramming because you have to know like 4 or 5 languages to make anything of decent value.
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>>8813193
>>Pulls out SQL

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