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Oh, hey. We're actually having old posts pruned now.

File: 1423249210175.jpg (41.98 KB, 600x834, 100:139, frabz-ANTES-DE-USARLA-Cone….jpg)

 No.1575[Reply]

Hey /sci/ I'm trying to decide what I should research for my IB Maths Internal Assessment. I was thinking about modeling the amount of users on this site, with a sine function based on posts that are only trolls rather than legitimate posts. What do you guys think??

 No.1576

>>1575
This sounds like a great idea. Maybe conditional probability would also work. I'll check with my prof at MIT and see what he thinks. Will update within the hour.

 No.1577

File: 1423249769074.jpg (6.34 KB, 282x212, 141:106, Portfolio_Examples_Chicken.jpg)

>>1575
Hey, OP, I think I had a similar situation in high school. Here goes.

>Be me

>be in IB
>teacher says it's time for Math IA
>Mimsy.gif
>Tries to model 4chan's user traffic
>decide to keep track for 5 months
>First 3 months going great
>happyfrog.png
>4 month hits
>tumblr raids ruin my results
>have to start all over
>mfw math teacher has a tumblr

 No.1578

>>1577
3/5 kek

 No.1579

File: 1423250561445.jpg (66.12 KB, 634x743, 634:743, article-2059410-0EBA2A5900….jpg)

>>1577
>posting about tumblr on 8chan
>inb4 trying to bring halfchan culture here

 No.1580

>>1575
In my opinion, basing your big project off of something like a website like this is not even remotely close to being a good idea.



File: 1422307638601.jpg (1.46 MB, 1029x830, 1029:830, 1398328483222.jpg)

 No.1475[Reply]

will we ever finish science?

is there an equation waiting to be discovered that would explain absolutely everything?
2 posts omitted. Click reply to view.

 No.1481

>>1476
>Can a cat be every animal species?

no, but every animal species can be described with genetics

 No.1482

I thought that one of the points of science was that it would never be complete.

 No.1557

>>1475
if you're into philosophy from a scientific viewpoint and this alan watts bit on form and matter is quite substantial. it's about an hour long but the most important parts are from the 10 minute mark to the halfway point, if you have the time i strongly suggest you check it out!

 No.1558

>>1557
The gist is that there is no way to explain "everything." everything is form and matter, and the patterns we see as we delve deeper and deeper in our studies is structured how we see fit. in other words, our universal consciousness, in regards to scientific progress, is looking deeper and deeper into itself. basically, if we could answer this question, what terms would we put it in? more form and structure. This doesn't mean science is useless, just that that journey to get somewhere actually meaningful to the question is either impossibly infinite or inconceivably for away

 No.1572

>>1558
that's pretty interesting

maybe the only way to get an absolute answer is if we knew every single property of the universe, e.g the position, velocity etc of every single particle



File: 1422908022635.png (88.78 KB, 944x740, 236:185, 2015-02-02_17h52_32.png)

 No.1524[Reply]

http://curiosamathematica.tumblr.com/post/109472259290/this-game-is-a-sliding-tile-puzzle-introduced-by#notes

>tumblr


Whatever. I don't know how to extract the game.

Can you solve the puzzle without cheating and inspecting the algorithm?

 No.1569

>>1524
that description got me stuck in the longest wikipedia train i've even been in



File: 1423110949765.jpg (51.8 KB, 600x852, 50:71, causes of death.jpg)

 No.1536[Reply]

Hello to all 9 of you /sci/entists

Why is this board so dead? Half/sci/ attracted much more attention than this (even adjusting for higher halfchan traffic). It would have been my favorite board if not for the IQfags, conciousnessfags and freshman math-fags - none of these are a problem here, so this board is perfect for me, yet it's a fucking ghost town.

How can we revitalize it? Shill on /boards/? Encourage more quality content? Weekly journal club?
5 posts and 1 image reply omitted. Click reply to view.

 No.1555

>>1545
>I think it's pretty safe to discuss

For god's sake proxy up if you're not comfortable discussing what you're doing face to face with your local intelligence agency.

I know in the past lots of sites have largely gotten away with discussing this kind of stuff but today is different. Everything is mainstream and there's a much wider audience of kidiots to fuck everything up.

 No.1561

>>1555
>if you're not comfortable discussing what you're doing face to face with your local intelligence agency
HE guy here, I have already done this. It wasn't fun but I still have the right to free speech and talking about it isn't illegal here.
Check you local laws before joining the conversation and if you do produce anything keep it very small scale for both legal and physical safety. The main reason I walked was all by synth's were under 5 grams this showed I was doing it out of curiosity and not malicious intent.
I'll make an amateur rocketry thread latter as that is a fun hobby and good stepping stone.

 No.1564

I am very interested in discussing science here, but since I am a guy who didn't even pass high school I try to just discuss things in simple ways, this might not fit well with this board so I limit my postings.

 No.1565

I talk about science when there's something to discuss. I guess I just don't have much to discuss right now besides current events. Try making more current event threads maybe?

How about them Next Gen Science Standards, for instance?

 No.1567

>>1554
>synchtube
all my yes

>>1536
probably more than half of halfchan /sci/ threads are people coming from other boards asking things they could have asked google.



File: 1423071014715.png (26.13 KB, 550x114, 275:57, sexist language.png)

 No.1533[Reply]

Well /sci/?

How sexist are you?

 No.1534

This is so stupid..



File: 1422515190628.png (10.52 KB, 443x554, 443:554, Untitled.png)

 No.1493[Reply]

my homework says that the final answer should've been what i had, but 33 instead of 3. where did i go wrong?

and yes, the question is 11x2+3=0

 No.1507

you didn't go fuck yourself

 No.1526

latex test

$$x = \pm \i \sqrt{\frac\{3}{11}}$$

 No.1527

$x = \pm i \sqrt{\frac\{3}{11}}$

 No.1529

$$\huge \begin{vmatrix}
\\ B
\\ I
\\ G
\\
\\ G
\\ U
\\ Y
\\ S
\\
\\ O
\\ N
\\
\\ S
\\ C
Post too long. Click here to view the full text.



File: 1419610903970.jpg (86.86 KB, 559x373, 559:373, multiverse.jpg)

 No.1079[Reply]

http://www.nature.com/news/scientific-method-defend-the-integrity-of-physics-1.16535

Are String theories and Multiverse theories not science because they're unfalsifiable? What do you guys think?
2 posts omitted. Click reply to view.

 No.1083

>>1082
Who knows.

 No.1084

>>1079
It's philosophy really.

 No.1086

>>1079
> 1812+202
> still using falsifiability as a measure of the validity of statements

Light being emitted away from us. Galaxies existing beyond the cosmic horizon. Not a single person of this planet having eaten alien for christmas dinner yesterday. etc.

Anyhoo: Whether those theories 'are science' is one of the dumbest questions you could ask: you're inviting pedantry of definitions - or worse, smugness without any personal contribution - as opposed any in-depth discussion.

So, what would you want to ask a string theoretician or cosmologist of your choice, if they were here?

 No.1522

>>1086
From OP's article:
"This year, debates in physics circles took a worrying turn. Faced with difficulties in applying fundamental theories to the observed Universe, some researchers called for a change in how theoretical physics is done. They began to argue — explicitly — that if a theory is sufficiently elegant and explanatory, it need not be tested experimentally, breaking with centuries of philosophical tradition of defining scientific knowledge as empirical. We disagree. As the philosopher of science Karl Popper argued: a theory must be falsifiable to be scientific."

 No.1523

>>1522
cont.

On the other side:
These unprovable hypotheses are quite different from those that relate directly to the real world and that are testable through observations — such as the standard model of particle physics and the existence of dark matter and dark energy. As we see it, theoretical physics risks becoming a no-man's-land between mathematics, physics and philosophy that does not truly meet the requirements of any.



File: 1421284255068.jpg (82.69 KB, 1440x1080, 4:3, Bald MuthaFuckin' Mountain.jpg)

 No.1355[Reply]

I am a stupid fuck, please read fully

>23 currently

>honor student in high school
>basically suppose to be a valedictorian
>fucked up and got expelled at 16
>got GED day after expulsion
>never opened a book after getting expelled
>worked and partied and it has taken its toll and damaged my ability to learn (no hard drugs, just liquor, weed, and shrooms sprinkled in between to a few times a year)
>can't remember words that I don't know the meaning of when either being told or looking up the definition (E.G. someone told me the definition of amicable, and i looked it up, I forgot the definition, and if it wasn't for google search history I wouldn't have remembered the word.) can't remember names or faces well either.
>can't even read sheet music anymore
>tried going through this book "Manual of Mathematics"
>haven't learned anything having tried to go through the book several times. It's really discouraging
>my brain feels like wimp trying to get fit and just starting out with a few pushups on the knees

Post too long. Click here to view the full text.
2 posts and 1 image reply omitted. Click reply to view.

 No.1373

>>1359
also thank you for taking the time to do so.

 No.1386

>>1355
What state do you live in?

 No.1387

File: 1421469563441.gif (1.88 MB, 500x281, 500:281, check-your-facts-not-your-….gif)

>>1355

I was like you though I narrowly avoided being expelled. What you have done it probably not enough to fry your brain, you are probably just out of practice. The effects of weed wear off mostly and alcohol takes a long time to destroy your brain.

Suggest you read the book "A Mind for Numbers" which is about how to learn stuff effectively.

Then enrol in a community college or a MOOT course on coursera.com and get back into some discipline. Then take it from there.

Hint: no matter how smart you are, there is no substitute for hard work.

You sound young enough to turn things around.

 No.1436

>>1386
nevada
>>1387
I tried going through that book this past week and I haven't been able to keep any information. I'm going to keep trying but I'm feeling it's futile. I think I'm just going to go over to /fit/ and get my physical health in order, hopefully my brains health will follow and I'll be able to regain some cognitive function. I took a IQ test from my psychiatrist tuesday and I scored miserably lower than when I was forced to take the test in high school. thanks to you two that posted.

I will still be following this thread if anyone has anything to contribute.

 No.1514

>>1436
Did you do all of the practice problems? If not, that's really what you need. This is true for anyone learning math, but for you especially: do any practice problems you can find.



File: 1412033546231.jpg (4.65 KB, 89x89, 1:1, ssb3_lucar.jpg)

 No.163[Reply]

Hello my /sci/entists, so lately I have been trying to tell my parents how evolution works, and I am terrible at explaining to them how it functions because I am not good at talking, they are stuck with the thought that evolution = humans were monkeys before, which is an ignorant thought.

So I always tell them that we humans didn't descend from monkeys, but from a common ancestor, which is why we share around 99% of their DNA, and that we weren't always like we are today, and we change as time passes and that there is evidence of it in our genes. They however simply laugh at me and keep fucking saying they will never trust scientists because they will never trust someone that believes we were monkeys.

When they spit bullshit like this I get so upset I just leave and stop talking to them, and I am asking for help for a way I can explain to them evolution better and they get rid of that fucking mentality scientists came from monkeys.

 No.175

This is just incredible. I mean, even the motherfucking pope has accepted the evolutionist point of view, and is working on "Nikolai Tesla as the power that gave the direction to the evolution", renouncing to the strict creationist theory in favor to a sort of updated version. And he is the motherfucking pope!

Well, that is a difficult task, because you have to fight a solid bias. First of all, I think you have to work on the doubt. They have to learn to get skeptical about the notions they have been told, which is the daily bread for a scientist, but it is something uncommon in the rest of the society.
Try to tease them with question they won't be able to answer with their current opinion.

I won't lie to you, It is very unlikely that they will ever change their thoughts, because we all become granitic in our beliefs, as we grown older. As the mutter of fact, a lot of Nobel prizes where rewarded for ideas they had developed in their 20s. But keep trying, it's very important.

 No.177

The only way is to get your parents to understand the scientific method. Otherwise your cause is doomed.

http://www.boston.com/bostonglobe/ideas/articles/2010/07/11/how_facts_backfire

 No.1494

File: 1422523365839.png (496.79 KB, 600x450, 4:3, lzKlN6t.png)

Every human being was a single-celled organism at one point in the womb.
Individually, we have all grown from one cell up to what we are now.

There's the fact that you have to get vaccinated throughout your life as diseases evolve.

Really you just have to get them to see that evolution requires the least amount of trust, as alternatives require much greater faith.


A thought experiment to get them to use the scientific method (basically Russell's teapot or the Flying Spaghetti Monster):

"I can't see what's in the other room right now.

There might be a unicorn in there.

Nobody would act as if there is a unicorn in there, because that requires many unnecessary assumptions.
Post too long. Click here to view the full text.

 No.1511

>>163
I've never tried this on anyone, but maybe it will help. I always thought that if I had to try and get someone to accept evolution I would simply ask them 2 questions.

1) Do you accept that we have DNA, and that DNA is what determines form and function of a living thing?

2) Do you accept that DNA changes over time in a species, childs DNA is a result of combined parent DNA and is therefore different from either parent alone, also that DNA is prone to copy errors? (you can explain how the amount of times DNA gets copied is astronomical)

I think that even most people who will claim to not accept evolution are willing to agree to the above.
Yet if they accept the above then evolution is literally an unavoidable consequence of those two things, and if they want to insist that evolution does not occur then they will have to point out one or both of the above questions to have some flaw in it.

 No.1512

>>1511
forgot to add, that what I meant by "unavoidable consequence" is that it's unavoidable in theory.

They can still protest that "even though it could work in theory, maybe it didn't actually happen".
and then you'll have to argue with empirical evidence instead.
But I think it's good to get them to at least accept that evolution must be theoretically possible because of the function DNA plays and the fact that it is subject to change



File: 1422620304760.jpg (42.15 KB, 458x516, 229:258, revising for the exam.jpg)

 No.1509[Reply]

Hey /sci/, could be of interest to you guys - >>>/freedu/ FREE Educational materials and resources. Board just starting so please contribute if you can.

Much appreciated!

 No.1510

File: 1422658603252.png (75.55 KB, 300x100, 3:1, 8ch.net-1419873149676-.png)

>>1509

Shill thread?



File: 1417215376731-0.png (17.81 KB, 540x530, 54:53, 540px-CuttingABarMagnet.sv….png)

 No.879[Reply]

I had the idea that in a fantasy game such as /tg/ play it would be possible to create a magnetic monopole by putting one half of a bar magnet in the physical world and the other half in an ethereal world or something. Then I realized I couldn't actually think of a use for a magnetic monopole (especially not in a preindustrial civilization) and that I could see no point to creating one (aside from physics experiments.) So is there any actual use for magnetic monopoles or are they just potential physical curiosities?
6 posts omitted. Click reply to view.

 No.1440

Enables Mag Tube terraforming.

 No.1450

Magnetic fields could do work like the electric field. It wouldn't change anything in your game really because without monopoles magnets can still do work through the electric field.

Magnetic monopoles are mostly sought after for theory, because we've got nothing saying they shouldn't exist and a couple of things saying they should, and that their existence leads to charge conservation.

 No.1457

Question: is it possible to create a spherical magnet with one of the poles pointed at the inside, while the other end covers the surface?

 No.1468


 No.1483




File: 1421982798873.jpg (1.08 MB, 4288x2848, 134:89, 1417827543543.jpg)

 No.1437[Reply]

The possibility exists that the conditions required for a spherical base of cellular wall to happen upon the necessary building blocks in the exact correct proportions under the exact amount of radiation and temperature in a particular order is infinitely rare.

It is the possibility that we are alone in the Universe.

And one random rock could wipe out all life that has ever existed in all time and history of this particular universe…one random blast from a neutron star could sterilize our planet entirely, completely and instantly.

Perhaps in all universes that have ever existed.

Perhaps all time that has ever existed life has only ever arose from the primordial ooze once here on Earth.

We believe that our star is a population three star.

That means the first stars in the universe were comprised mostly of hydrogen and helium…those stars created more complex chemicals and heavier metals inside of them and some of those stars went super nova and scattered those more complex materials throughout the universe…then those more complex materials were used in the creation of population 2 stars.

Population 2 stars again took those first population stars guts and forged them inside the stellar forge to create even heavier elements and more variety of elements. Then some of those population 2 stars went nova and those star guts were used in the formation of new suns called population 3 stars.
Post too long. Click here to view the full text.
5 posts omitted. Click reply to view.

 No.1459

>>1456
We are the Von Neumann probes

 No.1460

File: 1422140860635.jpg (15.76 KB, 190x244, 95:122, image.jpg)

>>1459
> send out
being the active part of the sentence.

Unless you mean aliens would send out non-sentient protozoics rather than machines that could do something properly interesting, which is a possibility, but probably not even enough to drop an order of magnitude over in the number of alien civs we should have had visit afterward.

 No.1465

Maybe if Earth dies and we go with it, a new species will evolve. Or perhaps if Earth loses its life but it's still salvageable, new life will form again. Consider we do not even know of most of the life here. Even if it was in small pockets at the bottom of the ocean, life has been through a lot.

 No.1467

>>1465
>new life will form again
if the earth is still salvageable life will probably have survived tough, microscopic life has a tendancy to be really hard to get rid of. take snowball earth for example, or the fact that waterbears have been observed to survive in space for an extended time.

if our planet is sterilized it seems unlikely the conditions for life would ever be seen again.

 No.1480

Life on earth most likely came from a comet, and that comet could have received that life from another world which had advanced life like us, and life there came on a comet, and it goes on and on, and there's a chance it happened multiple times, maybe that's why many epidemics happen.
Just a guess so I wouldn't take this too seriously.



File: 1416851018477.jpg (36.08 KB, 550x370, 55:37, download (1).jpg)

 No.826[Reply]

My girlfriend bought a smartphone, some Chinese model, but pretty good for the price, and with a warranty.
It has two cameras, a microphone and a shitload of preinstalled crap from every major Internet company in my country. When you run those, some of them want your phone number, email, physical location etc. I'm not even talking about Google, whose OS this device runs - it just wants everything it can possibly process, including your voice patterns.
What the fuck? How come your device, your private social life, your library, your movie collection etc. became essentially public? Even without taking government spies and criminals into account.
I don't even own a smartphone these days, I've tried a couple and they seemed useless to me compared to a simple solid QWERTY-featurephone on Symbian S40, which is what I use to this day as my personal memory addon and earplug.
You know, it seems like the advent of the Internet might have been a bad move for the individual, after all. Privacy only ever goes down and transparency increases, destroying the whole notion of personal life utterly. Your personal space is now between your ears only, and even that is not going to hold for long, by the look of it.
The Internet seems to me a major shift for human species, like agriculture. Not just another petty revolution, but a thing that will connect everyone and make everyone's life everyone's business. Death spell to the individual or small-group freedom, in other words.
What do you think of this? /sci/ because useless retards elsewhere.

 No.857


 No.1053


 No.1466

are you actually this stupid?

 No.1469

I don't see why personal freedom would have to die with privacy, though I agree privacy is moribund. Tolerance is a far less abusable principle to base freedom on, provided it can be properly established.

The biggest problem right now is that privacy and personal information are commodities, creating a power differential between poor and rich, human and organisation (private or public). Intolerance might still be a problem, but a society with no secrets would reveal so much hypocrisy that I can't predict what people would cluster around.

Do you honestly think we (the set of hypothetical activists) can stop the progress of information technology? Pandora's box has been opened: if they don't ask for your information, it won't be long till they just take or infer it. So instead of raging against an inevitable future, fight for one that you might actually be able to make happen.



File: 1421667293233.jpg (99.85 KB, 600x432, 25:18, 1269916737481.jpg)

 No.1413[Reply]

I'm trying to find what the hyperfocal distance of the human eye is but I'm coming up short

Using a lens calculator and inputting a circle of confusion of 0.006mm what I get is 66ft, this seems incorrect.

A bit of googling leaves me with the figure 15ft which seems a lot more reasonable but the methodology by which that number is arrived at was not provided.

Anyone able to help me out with this?

 No.1447

The eye has a single lens which stretches to change focus. So I'm not sure if the concept even applies, it would be a question of how strong your optical muscles.



 No.1418[Reply]

Is x!+1 always prime?

 No.1421

4! + 1 = 25
nope.avi

 No.1430

is x^2 always a perfect square?

 No.1443

>>1430
>(sqrt(2))^2



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