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Archived threads in /sci/ - Science & Math - 42. page
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Hey /sci/

I'm not a science fag, but I was thinking the other day. Since we have discovered most the naturally occurring elements, wouldn't other advanced life look like us, or at least similar?

Assuming there is only carbon-based life, how could life advance to the point we have reached without relatively resembling us in some fashion?

Also drunk as shit right now, but thought this made sense.
>>
All life on EARTH doesn't even "look like us". An octopus doesn't look like us, and they're pretty surprisingly intelligent. A bird doesn't look like us, but some of them are pretty damn smart.

If any body shape or morphology appears on Earth, as long as it's physically large enough, there's no reason it couldn't end up as smart as a human if it somehow had selective pressure to become smarter. If advanced alien civilizations existed, they could very reasonably be squid things, or plants, or slugs, or a superorganism like a manofwar.
>>
>>8503551
https://en.wikipedia.org/wiki/Hypothetical_types_of_biochemistry

TL;DR: Maybe, maybe not.

>>
>>8503558

Could they though? Could squids build skyscrapers, do abstract maths etc etc.

Hard to say I guess Idfk

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“There was a footpath leading across fields to New Southgate, and I used to go there alone to watch the sunset and contemplate suicide. I did not, however, commit suicide, because I wished to know more of mathematics.”
>>
True. I remember i wanted to kill myself a while ago but i didn't because I didn't want to die without knowing everything first.

Funny part is no matter what i do i will never know everything, but for some reason i still view it as a valid reason not to off myself.
>>
>>8503354
"The SF created us to enjoy our suffering. … The sooner we die, the sooner we defy His plans."
>>
>>8503373
This

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Why is Civil engineering stuck 100 years in the past and building cities like picrelated isn't a fully automated process yet?
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>>8503312
>Why is Civil engineering stuck 100 years in the past

its not. your perception of technology is retarded. you have been reading to many pop-sci click bait articles and think we are more advanced than we actually are. you are like every freshman mechanical engineering major who think he is going to build an iron man suit and be Tony Stark.
>>
Civil engineering is probably impossible to fully automate because basically every project is its own prototype. Nothing is ever the same because of changes in geography, demography, budget, resources, needs, time constraints, climate, etc...there's so many factors totally out of our control.

Construction, on the other hand, is on its way to being partially automated, but even then there will probably always be some people necessary.
>>
>>8503319
>literally pilling wet sand and praying it to not fall

Civil engineering is a meme, thank god I live in a patriotic wooden house.

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What the fuck happened here?
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>>8503245
BEES
E
E
S
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>>8503245
TRIPFAGS
R
I
P
F
A
G
S
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>>8503245
flooded river delta

So...

How does one operate a distillery in zero gravity?

I understand fluid dynamics change.
>>
I don't know but now I want to blow a week's worth of semen in zero gravity.
>>
>>8503187
Why is that man drinking his own pee?
>>
I don't think you can make traditional whisky in space..

So how do I do it?

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Hey /sci/, I was going to post this in /adv/ or /g/, but I figured that you guys would probably know more about this topic and provide better answers than any of the people in the other two boards.

I am a very weird reader. I'm also kind of a slow one. When I read something online, I can skim through it and absorb shit easily, but when I sit down to read a book or a tech document, I read much slower and it's more difficult for me to absorb the information. It's almost like I treat reading completely differently in these two different scenarios.

My...
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>>8503124
bump
>>
Stop reading and switch to audiobooks
>>
>>8503381
Most audiobooks I find have the following problems:
1: The person reading them sounds like a fucking robot.
2: The person reads slower than I do.
3: The microphone is shit.

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What?
Some people seriously value animal life above human life?
Explain this to me.
>>
I personally value human life more than animal life.
However, I think that the stance they take is due to the idea that animals can be seen as more "innocent" than humans. Humans have the ability to be "evil" to some degree, while animals are simply doing what animals do.

I disagree with their point of view because as animals ourselves, any kind of "evil" that we commit is simply because that is what we do.
I value human life over animal life because I understand that a single human has the potential to amount to more in society than...
>>
>>8503106
>valuing """human""" """life"""

I shiggy
>>
>>8503118
It's an internally broken argument. Yeah, animals are incapable of being "evil". Guess what, they also are incapable of being "good" or "kind". They aren't innocent. Being incapable of commiting crime doesn't make you innocent, it disqualifies you from being both innocent and guilty.

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So ... does this look like it might go somewhere?
>>
here you go, I have no idea what to make of it though.

I still think the Stellarator Wendelstein-7x is a more viable concept for longterm usage on a big scale.
>>
I want to see it work just so upset the fags working at ITER. It'll be the biggest scientific cucking of all time when a few aerospace engineers figure out fusion in a matter of months, while physicists have been working on it since the 80s. It'll be an even bigger cucking than the time 3 engineers won the Nobel prize in physics for making a blue LED.
>>
The graph looks like something a sci-fi movie director would make and call it a "beam energy warp drive" or some shit

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Hi guys, im trying to learn about the brain and stuff, and lately tractography has piqued my interest
This technique is a way to visualize the movement of the water inside the axons of a neuron, and by giving it a color coding, you can infere the directions of the fibers and tracts.

in this picture, we can visualize the corpus callosum, one of the main commisural pathways of the brain: in red, we se transvere fibers, in green, the antero-posterior ones, and in blue, the ones with supero-inferior directions.
>>
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>>8503001
Pic related
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>>8503011

Thanks senpai, even though my interest is mainly from an anatomical standpoint, I think I should read a little about the physics related stuff
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>>8503001
what are you interested in?

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Hello /pol/, I've been looking at the fact that 0.999... = 1 and the people who deny it and I think the problem is the proofs themselves.

They are really weird. They use arithmetic tricks that don't look right. So I tried to come up with a proof by contradiction which would use inequalities and show why 0.999... cannot be smaller nor bigger than 1... but I haven't been able to do it.

Maybe someone here who knows more about the structure of rational numbers could try to come up with such a proof?

>>
try to find a number between .999... and 1
you cant, so they're the same number
>>
>>8503000
It's obvious bait you tard
>>
1/3 = 0.33..
if 1/3 = 1/3 and 3*1/3 = 1
given 0.33.. * 3 = 0.99..
then 0.99.. = 1
there aren't tricks here

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$0.\bar{9}\neq 1$

I am serious. I looked at various algebraic and analytical proofs and they are all fallacious. Yet it is widely accepted that $0.\bar{9}$ indeed equals 1.

Why? Please explain to me without appeal to authority or other fallacies why $0.\bar{9}=1$ should be true. It does not maky any sense to me.

Let me make a similar example to explain my reasoning. Imagine there is a distance between A and B of 1 meter. Now this procedure repeats infinitely: 1. the distance doubles 2. you move 1 meter towards B. Even after...
>>
>>8502793
>Go on /sci/ to escape chat autism
>Find this shit

Neat TeX though, faggot.
>>
>>8502822
/sci/ is the wrong place to go.
>>
>>8502822
>escape autism
what part of you're here forever do you not understand?

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>He fantasises about having proved P = NP with a non-constructive proof.
>He then became very famous and rich, but he plays it modest with people, tells them that he's not that smart yet he says some cocky remarks to press.
>>
Probably get a quick 5 minute segment on the news and quickly moved on.

Wonder if they would even bother to interview the person.
>>
>>8502661
Bbut... proving P = NP is big. It'd be against all expectations.
>>
>>8502661
No way. It'd be in the news all day. Normies wouldn't know what is going on, but they'd have people spouting nonsense about flying cars and lightsabers becoming a reality all day on every major news network.

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I would like to know what books of fiction do you guys (especially the ones who are studying physics and mathematics) find interesting.

In fiction, for example, are there books that you appreciate because of:

a) A beautiful language, some form of beauty manifested in words (Shakespeare’s plays, for example)

b) Interesting plots or compelling stories (like the mystery books of Raymond Chandler).

c) Great characters (like the works of Tolstoy).

Also, when it comes dow to philosophy, we know that many branches of it have evolved into modern...
>>
>>8502594
>I would like to know what books of fiction do you guys (especially the ones who are studying physics and mathematics) find interesting.

massamune shirow has some interesting plots
>>
>>8502594
I read a lot of Agatha Christie.
Have read a lot of non-trash also, but she's my favourite.
>>
>>8502594

bump

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What is free will? Is it real?
>>
>>8502511
Free will is your will being bound only to itself/you.
>>
>>8502511
It's real enough. You can make choices, but the choices were predetermined. As long as there's no way to perfectly predict these things, free will is can seem real.
>>
>>8502551
How are they predetermined?

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>Set up Double Slit Experiment
>Put up a measuring device to see which slit the particles pass through
>Perform the experiment
>But don't look at either the projection screen nor the results from the measuring device
>Completely destroy the measuring device
>Look at the projection screen

What pattern do I see?
>>
>>8502486
You won't see an interference pattern because your experiment is too simplistic. For the real way to do it look up quantum eraser.
>>
are you fucking retarded? the results don't depend on whether there's some divine "consciousness" observing them, it depends on whether your measuring device interacts with the electron (which it has to).
>>
>>8502506
Not exactly. The result depends on whether information is "leaked." So you can in some sense measure the electron/photon and then destroy the information in order to maintain the interference pattern. However OP's experiment doesn't actually destroy the information, just one result of that information.

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Anyone have experience with calculators malfunctioning or miscalculating? I can confirm because the results I got from the calculator were different from wolfram and mathway. It was like two integers off on my calculator. Do you know how disappointing it is to go over an album length problem and be that little off? Fuckin sucks. Would re-flashing the expensive piece of shit calculator work or something?
>>
>>8502335
you typed something in wrong.
>>
>>
>>8502339
>>8502340
No. I looked at my work over and over. This isn't the first time it has done this even in shorter problems. It only happens during things that require division. Calcs in the right mode and everything...

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it's over gasoline is finished

>Iranian scientist Alaeddin Qassemi unveiled his new invention, a car that he says is powered by water, in Karaj, Sunday. The car can reportedly run on 60 litres (15 gallons) of water and is able to travel up to 900 kilometres (559 miles) in 10 hours. The power is generated after H2O is split into hydrogen and oxygen which react chemically to produce energy.

>According to the inventor, the car's engine only produces water vapour, causing next to zero air pollution. A litre...
>>
I've heard about cars supposedly running on water during the Korean war.

But then again

>Iran
>>
This is one of those old scams
>>
>>8502271

Yep, expect to see a kickstarter soon.

I get a thousand bucks a month in disability cheques thanks to schizophrenia.

Once my mother dies I'll most likely end up homeless because that shit is not enough to live on yo.

In the meantime, would it make mathematical sense to blow all of it every month on mega millions and various other high pay out lotteries?

pic unrelated but doggies are cute
>>
No.
>>
Your best bet is to probably buy an apartment somewhere to supplement your disability checks with rent income. Or you could stop being a lazy nigger and get a job.
>>
>>8502194
It makes more sense to blow it all on heroin, that way when you overdose you'll solve two problems with one stone:
>You won't have to worry about being homeless

'if there is no color in space, why are pictures of earth taken from the orbit always colored?
>>
>>8502000
nice digits, brohio

>>
>>8502000
he does look like a rich faggot doesn't he. good on him.
>>
They are Photoshop colored

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I am scared of antibiotic resistant diseases.
Comfort me /sci/.
>>
I think we can continue to develop stronger antibiotics if we start funding that research again. The trouble is for the past thirty years or so we stopped developing antibiotics because it is much more profitable to offer treatments rather than cures. But if shit ever hits the fan, I imagine the government might override that.
>>
>>8501766
It's going to be fine, OP. You are such a smart boy.
>>
>>8501766
Earth needs a good monkey cleansing. You know deep down inside it's going to be something mother nature concocts if we don't manage to do it ourselves. At this juncture, the sooner the better.

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What is the gravitational constant? How was it derived?
>>
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>>8501502
DUDE GRAVITATIONAL CONSTANTS LMAO
>>
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>>8501531
>>
>>850150
this part of 4chan is so tame what is going on

is pic related legit?
>>
>>8500645
>is pic related legit?
wtf kind of question is that? no calculator?
i can prove this for you but i wont, im to smart.
>>
>>8500646
no. is this how post numbers are assigned to each post?
>>
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TRUMP POSTERS GET THE FUCK OFF MY PLANET AWOOOOOOOOOOOOOOOOOOO

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So i have figured out how to build one of these suckers, much weaker than what you see in movies or games but still the same principle.

The problem i have is: china and the patent system and crap.

if i apply a patent i risk being taken down by NSA or even just some idiotic claims of prior art, yes the idea behind how it works is around 100 years old. Even star trek explains it correctly in one of the many episodes.

There are also applications of the tech out in the science community. These idiots did not realize what they have before their eyes. But...
>>
>>8497856
Did you make sure that it works? did you build one? if not then make sure it doesn't fuck up physics, i don't want to see another meme drive.
>>
>>8497856
do you use magnets?
>>
>>8497856
ok faggot, are you talking about using subatomic particles or extremly strong magnets ? if so you might as well patent it but it exists already and you wont do much shit with it

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Is it:
a) The limitation that society placed on them at an earlier age to be submissive and to become good mothers by their mind twenties?

b) The fact that men have a strong pressure on them since they were really young (Oedipus Complex) to be smarter and more aggressive to attract the opposite sex for matting purposes?

c) Is is just plain sexism?

d) Are men smarter in logic based fields than women?

e) Is is because major advertising and marketing agencies been manipulating both sexes to behave a certain way for the economic machine to further...
>>
>>8496532
b, e
>>
because STEM is hard and most women loath challenges. there really is no difference b/t the minds of men and women who are in STEM
>>
>>8496532
they do tho. progressively more and more

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I know that I'm probably shadow banned because everytime I post anything majorly thought provoking i never get a single reply.

I have a thought experiment to do with science and when trying to prove / disprove people who have psychic abilities.

I'll use telekinesis as an case study for my thought experiment.

The proof of psychic abilities is loosely defined as a person being able to exert a force by thought or willpower alone.

In any such case where anyone who claims to have said abilities he will no doubt be examined by other humans.

If...
>>
>>8503392

Evidence which backs this hypothesis is that any scientist who seeks to prove that people really do have these abilities usually has produced studies which support the evidence that paranormal abilities DO EXIST.

Although, when peer reviewed by less enthusiastic scientists it alwasy will show the opposite as the overall intent is that the experiment should fail.

I'm not questioning the validity of any previous experiments but I would like to perhaps discuss ways in which paranormal abilities...
>>
>>>/x/
>>
>>8503394

full of retards, and magick

I want a scientific discussion on this, because I think this line of thinking is fullproof

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>tfw autist smart
>wasted it on music instead of math

is there any recovery
>>
Make math rock?
>>
>>8501851
How old are you? I was a high-school drop-out and fucked around making music until my late twenties before going and getting a math degree. I still make music a little.
>>
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>>8501854
math rock blows. i was really into Hella for a while though.

I realized this year after landing a record contract and a music feature in a fairly popular tv show on Showtime that i don't really feel fulfilled doing it anymore. since it's been all but my entire identity for as long as I can remember, the prospect of changing my entire life direction is intimidating

>>8501865
20. your story makes me feel a little hope. i'm going to a community college because i'm poor but if i discover an affinity for math i might as well bite the bullet and take a transfer degree + a few 10k's of debt.

i'm starting school soon. i really want to go into CS but i can barely understand algebra (tested into alg 087). i'm learning the basics of programming in Python but my ruined attention span and lack of any sort of exercised logical thinking leaves me struggling through even the simplest things. it might be that i've been NEET and looking after my mentally unstable gf for a few years but i feel like i've reached this impasse in my learning ability. i've just started reading again though, picked up a few non-fiction books from the library (plato's dialogues and a book called "think python") but am trying to pick up the pieces. i have no idea how to start on learning math again, though. I'm hoping just going to school will be the answer.

Ultimately I want to autistically fuck around with machine learning / neural nets because the results of them fascinate me, but i have no idea how to get there. stuff like marI/O tickles me in a way that music has never done.

anyway sorry for the rambling it's just getting late and i'm getting sad

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What do you guys think about the potential for pharmaceutical antimicrobials made from Silver nanoparticles?

I think there's a serious chance for a breakthrough here. AgNPs are incredibly easy to make and I don't think it's out of the question to suggest that metal-based polymers could locate and selectively destroy bacteria in a living medium. I've even started a home project that involves synthesizing the antibiotic agents from silver nitrate and herbal extracts that work as a natural reducing agent
>>
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>>8501470
>I've even started a home project that involves synthesizing the antibiotic agents from silver nitrate and herbal extracts that work as a natural reducing agent
>>
>>8501476
The synthesis is similar to the one described in http://www.sciencedirect.com/science/article/pii/S1319610312000506

Basically, there are compounds that can be easily extracted from plants that will reduce silver (from silver nitrate) to AgNPs
>>
Whats the mechanism for silver ion being an antimicrobial

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You either kill:
>Two people with no social ties whatsoever.
>A man coming back home to his family.
A no-brainer. No one is going to miss the two people.

You either kill:
>One hundred people with no social ties whatsoever.
>A man coming back home to his family.
The question is whether cleaning the mess is worth the life of this family guy.

You either kill:
>Two people people both with siblings.

>>
this is metaphysics, kill yourself, scientificist subhuman
>>
>>8502963
>this is metaphysics, kill yourself, scientificist subhuman
If you were to instruct a computer to make a choice, how would you instruct it?
He has access to a lot of data and he has to maximize the delta_outcome function.
>>
>>8502956
>kill
Bro not saving people is not the same as killing them

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How do you cope with having gone to a lower status university than you could've handled and doing a subject you didn't like and not being able to change due to being in the UK and being aged 24 knowing you have never done anything intellectual in your life? And having practically given up on your degree with over a year to go, handing in the absolute minimum to get a 2.1 (acceptable in the UK)?

Feels awful man. When I go through stuff in my own time, whether it's academic or not, I feel awful. Learning PHP is trivial. Learning maths for physical sciences (my uni missed out tonnes of stuff) is trivial. The exercises in SICP are trivial. I don't mean that I am finding everything easy- I mean that if I do this stuff it is not an achievement in any way like a MMath from Cambridge or a research paper in a scientific journal or creating a programming language or framework would be.

I'm implementing stuff in Lisp from SICP when Turing was literally inventing the theory behind computer science. Learning PHP is easy but I haven't done anything near as smart as the guy who created PHP (and the guy who created JavaScript did it in about a week!).
>>
>>8502895
what uni, what subject did u wanna do.
>>
>>8502895
I know people with Cambridge mmaths firsts having the same thoughts.
>>
>>8502925
No you don't you lying sack of shit.
>Noko
You don't need to do that any more.

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I want to learn it.

How do I do it?
>>
>>8502887
>>
pls respond
>>
>>8502887
Sorry you need to be born and grow to have a specific kind of intuition
But if you insist I suggest starting by studying thermodynamic cycles and maxwell's relations
Also, brush up on partial differential equations, it's very helpful

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