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Archived threads in /sci/ - Science & Math - 551. page

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Explain to a faggot why time travel would never be possible
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>>8891625

Because time is a man-made concept. It doesn't exist in the physical world.
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>>8891625
Because you would essentially have to reverse entropy which goes against the second law of thermodynamics. "Time" is just what humans call the constant process of entropy.
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>>8891991
>"Time" is just what humans call the constant process of entropy.

Not necessarily.

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/sci/, how do we know other animals don't have consciousness?

Every experience we have is explained by chemical reactions in the brain. Pain, affection, sexual arousal, empathy, all are cold and calculated reactions for serving some evolutionary purpose, and most other animals display these exact same "feelings".

The thing that sets humans apart is that we have a sense of "being". When a human has physical pain inflicted upon him, he not only exhibits the instinctual response to pain, but there is a "self" there to experience the pain. But we only know this because we assume that he is just like ourselves; that he also is aware of what is happening to him. Scientists don't actually know why our brains have developed self awareness.

You, the person reading this, can't be absolutely sure that anyone else in the world (including me, the one writing this) has the same ability to experience reality as you do, and that they're not just bags of organic material reacting to stimuli in a way any non-conscious animal would. After all, there's no reason to think the ability to type words on a keyboard requires a "being" to be aware of what they're doing. Just as I can't be sure that I'm not the only one with a consciousness. Furthermore, if all humans have consciousness, why am I me? Why are all of my experiences taking place from the perspective of this specific human, and not any other one?

Since we don't know what causes what we call "consciousness" in humans, how on Earth can we say that other animals don't have the same sense of being that we have? My dog behaves more or less the same as I do (eat, sleep, survive, fuck), but we for some reason assume that it can't "feel" itself in the same way we can.
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>>8891396
You couldn't verify the consciousness of an animal unless you had a consistent means of communication with said animal. But supposedly, the mirror test that's given to animals supports the theory that they are conscious.
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>dualist model of consciousness
Don't be a retard.
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How do I know other humans have conciousness?

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Abstract
Genetic factors are estimated to account for at least 20% of the variation across individuals for educational attainment (Rietveld et al., 2013). The results of the latest GWAS for educational attainment identified 74 genome-wide significant loci for educational attainment (Okbay et al., 2016). Here, in one of the largest GWAS to date, we increase our sample to nearly 750,000 individuals, and we identify over 600 genome-wide significant loci associated with the number of years of schooling completed. Note that at the time of presentation, we will likely have updated our meta-analysis to include over 1,000,000 individuals

In this presentation, I will focus on the biological implications of the GWAS results. At the time of writing, 1,656 genes are significantly prioritized, a more than 10-fold increase since our previous report (Okbay et al., 2016). The newly significant results reinforce the biological theme of prenatal brain development and also bring to the foreground new themes that shed light on the biological underpinnings of cognitive performance and other traits affecting educational attainment.

Authors
James Lee (University of Minnesota - Twin Cities), Aysu Okbay (Free University Amsterdam), Robbee Wedow (University of Colorado - Boulder), Edward Kong (Harvard University), Patrick Turley (Broad Institute of MIT and Harvard), Meghan Zacher (Harvard University), Kevin Thom (New York University), Anh Tuan Nguyen Viet (University of Southern California), Omeed Maghzian (Harvard University, NBER), Richard Karlsson Linnér (Vrije Universiteit Amsterdam), Matthew Robinson (The University of Queensland), Social Science Genetic Association Consortium (NA), Peter Visscher (The University of Queensland), Daniel Benjamin (University of Southern California), David Cesarini (New York University)
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To give an idea of the improvement

previous in 2016 - 74 significant loci
today in 2017 - 600 significant loci
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OP is a retard, as always

>http://programme.exordo.com/bga17/delegates/presentation/214/

The presentation is coming 29th June.

Also
>Genetic factors are estimated to account for at least 20% of the variation across individuals for educational attainment (Rietveld et al., 2013).
:^)
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>>8890373
whole point of this post is just to imply "research on this is advancing rapidly with better samples". Not how consistent the message is spread or how entirely accurate. First of all it's 4chan and second the OP Is more "scientific" than 99% of journalist articles would be about any study or presentation. Not to mention all of that information is encapsulated in the OP and opened with google searching.

>In this presentation,

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was there anything more cringe than when Neil Degrass Tyson tried to just laugh his way thru the first JRE appearance when they covered the various "moon landing" videos for 2 hours and he had a smart remark to explain every fallacy that occurs
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>>8890020
yeah the part where neil spouted off nonsense about infinity, proving he knows nothing about cardinalities
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>>8890020
why the hell was he bothering to even engage with conspiracy theory pushing morons in the first place is the real question. Speaking of, get back to /pol where you belong.
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>>8890055
If they're so crazy, then why do you have to resort to being a condescending twat instead of actually addressing their points? To a third party, that kind of response only gives them more credence.

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>he unironically studies pure mathematics

Just... why?
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>>8885968
These people were good at math in high school and think they can make a living by solving math problems.
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>>8885968
being a math prof, even at a 2 year local college, is a pretty good job. wont get you rich, but pretty easy if you know your stuff.

also maybe they just like the subject
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>>8885968
Because its the hardest intellectual endeavour (along with theoretical physics).

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The second law of thermodynamics proves that evolution is a lie.

Peer reviewed papers have been published about it, and lawsuits for academic freedom to express/prove this fact have been won!

A second look at the second law
http://www.math.utep.edu/Faculty/sewell/AML_3497.pdf

On "compensating" entropy decreases
http://www.math.utep.edu/Faculty/sewell/articles/pe_sewell.pdf
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jewish nonsense spawned to protect the torah
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>>8885003
Weak bait.
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>>8885012
Not really. The arguments are clear and compelling!

I've been working on an extremely complicated infinite sequence for the past week, and long story short I need to prove that an infinite series found in the sequence converges to one.

I have the first 21 terms of the series, and it appears to loosely resemble a 0.5*ln(x) graph, however about every iteration seems to increase then decrease by more.

I need to find an expression to predict all future terms so I can prove the series converges. Pic related.

Not shown are (1,.5) and (2,.25)
First and second shown values are (3,.0625) and (4,.0625) only the 3rd and 4th terms are known to be equal.

How can I go about solving this? The difference between terms seems to be random, yet appears to be approaching 0 (it's not a simple a+bx+cx^(2)+. . .).

I have found the denominator expression of the series. I'm just stuck on the numerator. (It is likely an alternating power and/or exponential sequence, or maybe with a sinosudial part)
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The first 4 points look like outliers, I wouldn't consider them at first.

Well, I have no idea, nigga. Try to interpolate all the points on the graph using a numerical method, and see what it gives you.
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>>8893708
Thanks, I believe you're correct, the first 3 terms are a bit strange.

I've found a couple graphs with my calculators regression functions (0.803x^-2.1314=y (in blue) and .1411Ă—.773^(x)=y (in purple)) that resembles it, but I need it to be exact
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If it's an alternating series, try splitting it into two subsequences of even and odd terms so it becomes monotone, and then taking the difference.

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Can /sci/ solve this most complex problem?
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>>8892782
Crack the eggs and pour an equal volume of egg into each dingledoober.
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>>8892782

101100 1+2+3 , 3+3 = 6
010100
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>>8892799
not right

>photons have no mass
>solar sail work
choose one and only one
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I honestly think we should build these, because aliens would laugh so fucking hard at us moving by shooting lasers into mirrored material. They'd be like no, we should step in and help.
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What is radiation pressure for $200?
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>>8892601
>>photons have no mass
>>solar sail work
>choose one and only one
you need to do some research anon
>implying solar sail works by light photons and not charged particles in solar wind.

(It's free).
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>>8892537
What can you do in it?

Hey /sci/, not looking for an /adv/ tier thread but I need recommendations for what to study over summer
I'm going into materials engineering and I've finished calculus II with an A+. My chemistry is fucked (C) but my physics (mechanics, not EM) is pretty solid (A-/A). Where should I go? Study chemistry? Study introductory materials science? Study vector calculus?
Also pdf thread

Randall Knight 3rd Edition Physics https://drive.google.com/file/d/0B5ZHgLYLIxgjZkxQUXcxNXdELUE/edit?usp=sharing
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Informal Text on Vector Calculus 3rd edition Schey
https://docs.google.com/file/d/0B5ZHgLYLIxgjdHNIRTVuc0tGRmM/edit?usp=sharing
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Rizzoni Principles and Applications of Electrical Engineering 5th edition
https://drive.google.com/file/d/0B5ZHgLYLIxgjZ3BYMjByVllBSEU/edit?usp=sharing
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>>8892423
>knight physics
>keks internally

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Oi lads, what are some channels similar to pic related? I'm looking for channels that btfo nu science clickbait ""studies"" only. I do NOT care about the sjw/anti sjw shit he does. Thanks.
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sjw shit is nu science pseudostudies tho
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>>8891116
I think the channel potholer54 does similar stuff. and c0nc0rdance.
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>I do NOT care about the sjw/anti sjw shit he does
You do realize Postmodernism (sjws) is the anti-science movement, right? Look up the Sokal affair.

I think dark matter has a "branding" problem.
The name implies that there is some unseen matter, but no one knows that specifically for sure.

More accurately, it's "unexplained mass" but that doesn't sound as sexy (marketable and research-able). If we called it "unexplained mass" it makes it sound like it's a instrument or mathematical problem, in other words, a "scientist" problem.

When you call it "dark matter" it's a "universe" problem, as if the universe is mysterious and/or hiding itself from us.

By calling it "dark matter" it changes how we view it and how we research it. It appears that is contributing to why we can't explain it.

Discuss.
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Dark matter is called dark matter because Zwicky noted in the 1930's that the virial mass of the Coma cluster was much larger than mass to light ratios measured locally would imply. There was matter that was darker than was thought to be typical, dunkle Materie, dark matter. A factual name.

You can' choose what name sticks. The big bang for example is a terrible name but it's too late.

Does any of this affect the research being done on it? No. Astronomers aren't stupid. Dark matter, specifically cold dark matter, has come to dominate cosmology not because of a snappy name but because of its observational successes and because it is leaps and bounds ahead of the competition.
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>>8891207
>Does any of this affect the research being done on it?
I think "unexplained mass" asks a much different question than "dark matter" hence why research is heavily towards looking for non-baryonic matter which very well might not be the answer at all. In fact, we have no evidence of it as of late.

Maybe new questions need to be asked. I'm not saying their observations are wrong (but they could be) rather, they are looking for "dark matter" that might not be there at all.

Reminds me a lot of luminiferous aether. That ended up not existing either.
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>>8891228
>hence why research is heavily towards looking for non-baryonic matter which very well might not be the answer at all
If you think this has anything to do with the name then you are extremely ignorant. CDM is by far the most successful model, that won't change until there is a better one.

>In fact, we have no evidence of it as of late.
That is simply not true. From the powerspectrum of the cosmic microwave background to cluster mergers like the bullet cluster dark matter is stronger than ever as a model. Whining about the name isn't going to change that.

I need to calculate the surface between y=x*e^(-x^2) and Ox axis. Can anybody solve this for me please?
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This isn't a homework board lazy piggot normie. Sage
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>>8890941
This isn't for homework
I am practising for a test, and i'm having trouble with this...
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I'm confused. You don't seem to understand what an integral is, but someone expects you to be able to perform integration by parts?

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I'm 18 with unlimited motivation and want to work for a biotech company that wants to stop aging. What do I do?

Pic unrelated
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go to college and get a degree in biotech if you have unlimited motivation faggot
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>>8889639
Sounds too easy desu, Any more advice?
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>>8889694
Think about how anti-aging could be attained. Brainstorm some possible ideas, you could provide for the company at interview or something like that. It might increase your chances if your truly interested in stopping aging.

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