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/sci/ - Science & Math

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2111736 No.2111736 [Reply] [Original]

Listen up, /sci/ducks and newcomers alike. I personally am sick of homework, religion and troll questions that are guaranteed 100+ replies.

Here's some advice for you. Install the 4chan addon for Firefox, and hide any troll threads you see, so you're not tempted to reply when you see them again. You can find it here:
http://www.4chan.org/tools/

Troll threads include ones complaining about either side of the religion debate, that look like they're by Aether, have questions such as the 0.999... = 1 debate or the boy/girl paradox or make your common sense tingle.

I'm going to post some links for people to answer the questions they always have when they come. I do want you all to learn, after all. I'd just prefer /sci/ was discussing science and math than repeatedly teaching basic concepts to people.

http://www.wolframalpha.com/
>A good site that will do your math homework. It knows everything else, too.

http://www.khanacademy.org/
>If you're not a lazy fuck and actually want to understand math better, use this site. Only does high school math.

http://ocw.mit.edu/
>A fair bit of MIT's lectures, problem sets, etc. You're not guaranteed all the course material, but the introductory courses seem to be covered fairly well.

http://oyc.yale.edu/
>Same as MIT OCW, except for Yale. Haven't used it myself.

I'm hoping this can get stickied, so I'm not posting copyrighted material, sorry.

Posting xkcd because it's kinda /sci/ related and is creative commons.

>> No.2111750

>wants a sticky in /sci/

And i want to use graviphotons for anti-gravity..

>> No.2111757

>>2111750
One can dream. Post other helpful links if you want. And don't stress about copyrighted stuff, I've decided that if it gets stickied a mod can just delete the replies that contain links to copyrighted material.

>> No.2111765

It's fun to learn:
>http://topdocumentaryfilms.com/

>> No.2111769

This would be excellent.

Does anyone have that link with probably literally over 9000 PDFs, as we're not too fussed about copyright now?

>> No.2111777
File: 113 KB, 934x731, rhizome.png [View same] [iqdb] [saucenao] [google]
2111777

>>2111769
Don't have a link, but there's project rhizome...

I'm sure someone can invite you if you're interested.

>> No.2111791

>>2111777
Hmm, that wasn't it. I think it was a Russian site, just one page full of links that took forever to load.

>> No.2111827

>>2111736
this actually helped me OP cheers!

>> No.2111836

>>2111827
See, mythical mods? It's been up for, what, less than an hour, and we've got someone saying it helped them. This would be a huge benefit to the board.

>> No.2111846

Wait OP! 0.999... = 1? WTF? Mind.Blown.

Wow, this /sci/ board has a fuck load of interesting stuff. Reminds me of something I was thinking the other day. Like, what if we're all just biological machines and free will is an illusion?!? Anyone on here ever think that?

>> No.2111867

>>2111846
You're not even trying, man.

But yeah, free will is another troll topic.

>> No.2111890
File: 21 KB, 890x409, collatz.png [View same] [iqdb] [saucenao] [google]
2111890

>>2111867
You got me dawg. I has been maed.
In repentance, I have done the Collatz Conjecture for numbers 2 to 200 in a spreadsheet. Pic related.
You can't maek out teh nums, but you can see that they do indeed converge to 1, some faster than others... inb4 cool story bro.

>> No.2111899

>>2111890
Lol. I made a python script to do it instead.

>> No.2111904

>>2111777
can normal people get invite ?

>> No.2111914

>>2111904
I'm a normal person and I got an invite.

AFAIK you just need to wait for the rhizome guy to be browsing /sci/ and ask and give your email.

You'll need a gmail account since it uses google docs.

>> No.2111921

>>2111914
Ohkey, thank you. Does he/she have a tripcode or something like that ?

>> No.2111926

>>2111904
>>2111769
Post your gmail, I'll send you an invite.

>> No.2111928

>>2111926
There you have it.

>> No.2111930
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2111930

>>2111899
Wow, you are much coolr, for sure. Here is a pic for your cool story bro.

>> No.2111950
File: 19 KB, 667x376, rulesofsci.png [View same] [iqdb] [saucenao] [google]
2111950

>> No.2111957

>>2111950
>Rule #1: All gays are gay gays.
repeat yourself much?

>> No.2111975

>>2111769
http://bib.tiera.ru/staticelbitz,net

>> No.2111977
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2111977

>>2111769
http://research.xerq.net/science/

Is this what you're looking for? Some guy posted it a week or so back.

>> No.2111982

bump for sticky

>> No.2111985

>>2111977
Nah bro, but it looks pretty fucking good anyway.
>>2111975
This is it. Thanks man.

>> No.2111997
File: 27 KB, 303x336, wig.jpg [View same] [iqdb] [saucenao] [google]
2111997

>>2111975
>mfw FBI guide to concealable weapons

>> No.2112002

Everyone email moot about this. Be sure to include the thread number.

moot@4chan.org

Bump for sticky.

>> No.2112011

More /sci/-links ?

www.ted.com

>> No.2112017

>>2112011
Yep, as many as possible. I might make a new thread with all of them in the OP if we get too many more.

>> No.2112021

I don't reply to homework questions ( if i spot them as such anyhow ) but i do give out general information about my field if asked...that being said

www.sciencedaily.com

>> No.2112040

>>2111950
I sense a potential conflict between #2 and #9.

>> No.2112061
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2112061

whats a boy/girl paradox?

>> No.2112065

http://www.erowid.org/archive/rhodium/

for the chemists

>> No.2112069

>>2112065
http://www.erowid.org/psychoactives/chemistry/chemistry.shtml

better link maybe

>> No.2112080

>>2112040

nope, at the point which religion can be backed by extraordinary evidence (read:good) it's no longer religion, but scientific

>> No.2112085

>>2112080
Yes, but what if it isn't?
"There is a supreme being" is an extraordinary claim if I ever heard one.

If divine intervention isn't claimed, it's outside the realm of science, of course. But it's still an extraordinary claim, so shouldn't we request extraordinary evidence?

>> No.2112089

>>2112085
The big bang is also an extraordinary claim. Unlike Christianity, there is no evidence at all for it.

>> No.2112092

>>2112061
A good way to troll sci.
Ask This:
Mr. Jones has two children. The older child is a girl. What is the probability that both children are girls?

You will get 230 posts of retards arguing 2/3 vs 1/2.

>> No.2112100

>>2112040
>>2112080
>>2112085
>>2112089
Seriously, guys?

>> No.2112113

>>2112092
1/2, because the first girl is irrelevant to the creation/existance of the 2nd girl (unless some wincest is going on), and thus doesn't factor into the equation.

>> No.2112145
File: 126 KB, 290x222, 1284178214153.png [View same] [iqdb] [saucenao] [google]
2112145

>>2112113
no its 2/3, its a trick question, your answer would require the asker to say "each child"
seems pretty easy to me, and here I was hoping for some Gender politics/superiority shit storms, all I got was this lousy statistic.

>> No.2112162

>>2112145
well lets do the math (aka factor in the first girl (I lied it can be done)), the probability that the first girl is a girl is 1/1 the probability the unknown child is a girl is 1/2.

1/1 x 1/2 = 1/2

>> No.2112164

>>2112145
1/10 - almost considered responding

>> No.2112167

Although I do loathe the troll threads and the "Oh lawdy how do I integrate sin(x)^2?" .. some of the homework-threads have been quite interesting and made me take out my physics books every now and then.


Of course, all the religion threads and the like should be removed.

>> No.2112168

>>2112145
dear god i hope you are trolling after so many of these threads. your tone says otherwise, but i know you are underage and retarded either way.

>> No.2112172

>>2112168
>>2112162
>>2112145
>>2112113
>>2112092
actually, the correct answer is 1/4 (i.e.: 1/2 x 1/2)

im only saying this because some1 might've thought you weren't trolling

>> No.2112176

bump for sticky

>> No.2112179
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2112179

>>2112172
that makes more sense, stupid false dichotomies.

>> No.2112185

>>2112179
>>2112172
Eh .. I dunno man, considering the phase space of that situation, 1/4 seems a bit low, don't ya think?

>> No.2112186

>>2112145
no, the answer to that specific question is 1/2
it's 2/3 if it says one child is a girl, but it specifies the older child is a girl

Let A be the event that the older child is a girl
Let B be the event that the younger child is a girl

A and B are independent events
Hence, P(B|A)=P(B)=1/2

>> No.2112190

>>2112172
>>2112179
so the probability of a girl being a boy is 1/2? Well I suppose if you account for the possibility of the older/first girl being a trap you could be some what right...

>> No.2112248

Attention /sci/.

This is a thread about not getting trolled, and OP kindly provided some examples of things that people use to troll you so you know what to avoid.

Now read from >>2112080 onwards, and be ashamed at yourselves.

>> No.2112308

Bump for sticky.

>> No.2112353

Why is this not stickied yet?

moot@4chan.org
moot@4chan.org
moot@4chan.org
moot@4chan.org

Come on, /sci/!

>> No.2112390

bump for sticky

>> No.2112672

>>2112248
this isnt trolling, its a genuine failure of logic, trolls start new threads and never stop shit posting, this thread would be autosaged if it where trolling.