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/sci/ Science & Math

Threads added between 2013/07/10 and 2013/07/17

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Most viewed threads in this category

10 more posts in this thread. [Missing image file: dick.jpg]
I remember there being a torrent with ebooks in it about science, psychics, space and whatnot. I checked the sticky, couldnt find it back. It was sorta like the gentoomen library, but more /sci/-ish Anyone knows where I can find it? Thanks. Pic is unrelated, ofcourse.

Finding young girls attractive reason

4 more posts in this thread. [Missing image file: Tsutsukakushi Tsukiko13.jpg]
Hello /sci/ Don't come here often, but what is the scientific reason for men liking young girls. I don't think I'm a paedo, but I still find young girls very attractive. Their innocent faces, petite bodies, tight openings, would feel so much better than any women at my age. I find them more attractive than women our age as well, I'm sure it's normal, but obviously resist our urges, and just try to avoid staring for too long. But in a way it's their own fault sometimes, why does a little kid need those kind of erotics clothes, I sometimes think their parents want their little girl to seduce others. So yeah, my question is what is it scientifically or evolutionary wise that makes little girls so sexy and wanting to just do it with them. P.s. I do watch a lot of anime, so I guess that does play some factor on real life girls. But even before I started watching these years ago, I'm sure those kids were just as doable then.
0 more posts in this thread. [Missing image file: image002.png]
what is the hierarchy of affect affectors?

Physics Class presentation

1 more posts in this thread. [Missing image file: mlfw3758-1332112891827.gif]
http://www.youtube.com/watch?v=KFkoe92kii0&t=0m50s You walk into physics class and see dis hur. What do /sci/? SMH
8 more posts in this thread. [Missing image file: protip[1].jpg]
ITT, let's talk about homework help on /sci/: In a word: DON'T ASK FOR IT. 1. people on /sci/ are mostly assholes and don't want to help you. they are, however, very willing to waste your time and also insult your intelligence. 2. people on /sci/ are also actually quite bad at whatever you're doing. no, seriously. even high school algebra. 3. the very few people who are both capable and willing to help are quite likely to demand that you 'show the work you've done so far'. the problem with this is that you will spend a shitton of time typing it out, shitton of time back-and-forthing, and more time being trolled and quibbled about grammar. After all that it is very likely you won't get help anyway, because 4chan has the attention span of a goldfish. 4. just google. seriously. if you type the exact question into google, it's likely you'll find a concise, comprehensive and accurate answer. this is because plagiarism is only punished when you're a student. when you're writing homework questions it's called 'not reinventing the wheel'.
9 more posts in this thread. [Missing image file: 1371165447716.jpg]
Alright, second attempt: The edges of a rectangular box are each measured to within an accuracy of 1% of their values. What is the approximate maximum percentage error in the calculated volume of the box? My thoughts were: \displaystyle\frac{dV}{V} = \displaystyle\sqrt{(\displaystyle\frac{dx}{x})^2+(\displaystyle\frac{dy}{y})^2+(\displaystyle\frac{dz}{z})^2} = \sqrt{0.0003} \approx 0.017 = 1.7%, but the answer sheet tells me it should be 3%. How?
2 more posts in this thread. [Missing image file: 220px-Ravens-matrices-SPM-cover.jpg]
So /sci/, some people at my university gave me this, the Raven's Progressive Matrices test. I did it, and I scored 60/60. Honestly I found it pretty easy, and I fail to understand how this can measure IQ. The fact that I recognize patterns makes me smart or, well, I'm simply able to recognize patterns? I mean, isn't this like "oh, you can do 100 pushups in a row, so you obviously can run for 10 miles"?

Why is OCD so common nowadays?

22 more posts in this thread. [Missing image file: OCD1-823x1024.jpg]
24 more posts in this thread. [Missing image file: hydrogen-peroxide.jpg]
Not sure if this is the place to ask this but gonna give it a shot. My sister and her boyfriend are more than likely addicted to drugs at the moment (cocaine) but recently I have noticed they are going through bottle after bottle of hydrogen peroxide. What gives? I tried to look into it and it seems it may help cheat a drug test, which I suppose makes sense seeing as they have mandatory visits from DCF. I am just really worried about my nephew and want to make sure nothing cooking related is going down in their new household. Thank you.
11 more posts in this thread. [Missing image file: stock-photo-extension-cord-with-mul(...).jpg]
Sorry if this is off topic. My room has only 3 wall plugers on the same side, so I use extentions on basically all of them to be able to plug my equipment. and some have extentions on extentions. Is this safe? I don't turn on everything at the same time, but just having extentions conntected to more extentions is hazardous? Note, I don't know much about electricity stuff.
2 more posts in this thread. [Missing image file: painted_animals_by_snowtigersuzan-d(...).jpg]
why does my toaster spark green when i eject the bread prematurely? doesn't green mean chlorine for fire?
59 more posts in this thread. [Missing image file: 1324755944001.jpg]
>tfw brilliant math/physics students eventually go into economics/finance It's always sad to see promising minds sell their souls.
3 more posts in this thread. [Missing image file: Koala.jpg]
hey /sci/ anyone feeling charitable enough to help a collegefag with his calculus? I am failing miserably at this: Find the equation of a quartic polynomial whose graph is symmetric about the y-axis and has local maxima at (-3,0) and (3,0) and a y-intercept of -2.
3 more posts in this thread. [Missing image file: 1365400880768.jpg]
Hey /sci/, What is/are the best college(s) to go to for computer science? I'm no genius, but I am certainly more proficient than most that went to my highschool. I was one of two people the school came to asking for a new disciplinary reporting system, ran computer science club last year, did very well in competitions, etc. Despite having actually done things that sound/are important, my GPA is only 3.9, and my SAT scores aren't very pretty (writing is the issue). Would colleges REALLY care about SAT scores other than math and GPA knowing I've done work for my school district and have letters of recommendation from school administrators? Thanks
34 more posts in this thread. [Missing image file: Notitle.png]
Is anyone good at probability??
39 more posts in this thread. [Missing image file: psi71543449.jpg]
I just got this tattooed on my left pec in black. What do you think /sci/? I'm an inorganic chemist and I want to research room temperature super-conductors. Wavefunctions are fucking awesome so I figured I'd get the symbol for a wavefunction.
84 more posts in this thread. [Missing image file: the-eye-of-silence-1943[1].jpg]
Mathematics >>>>>>>>>>>>>>>>>>> Physics >> Chemistry >>>> Biology >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Engineering So we can all agree with this list ranking the level of sophistication and cleverness each field's arguments possess , right?
27 more posts in this thread. [Missing image file: 405px-Honourable_Bertrand_Russell.jpg]
Hello, great minds of /sci/. Are the following statements logically correct? Christianity is related to Judaism, because it is derived from Judaism. Because Christianity is a derivative of Judaism, Judaism is not related to Christianity,

Nootropics

9 more posts in this thread. [Missing image file: MS_subject_science_2CR.jpg]
I am here to give a report on Nootropics after being a personal Guinea pig, simply because I said I would and several people were interested at the time. AdderRx: Made me feel paranoid, heart racing, couldn't sit still, mind racing, can't concentrate... however it was extremely effective at combating insomnia. I stayed awake for two days. And I never felt tired taking it. ADRApro: Gave a short term boost to focus, seemed like a very very mild adderall, generally I don't think the effort of remembering to take it was worth it. EXCELEROL: At first I did not notice anything, and wasn't even thinking about it but after the second day, I noticed my scores on an online game I occasionally play "Wargame Airland Battle" had improved dramatically, I was now winning almost every match, my decisions were quick, I no longer sat there in a stupor at what to do but made choices quickly and decisively. I was now playing on the highest level with the best player of the game. I noticed also that my reading comprehension was improved, I remember more of what I was reading and understood it's contents better. I decided to re-read the first half of GEB, and the material did not seem as distant as it had before, I also decide to re-read the 48 laws of power, and now the book material seemed childish to me, like the book was written for someone beneath me, where before I was impressed by it. The most dramatic effect are my dreams, I now remember my entire dream sequence from start to finish, and I have been having some highly creative dreams with some very unique and original ideas generated while dreaming. At the pace this is going it feels like I may actually dream up something useful and applicable to the real world. I may not try the rest of the Nootropics and stick with this.
5 more posts in this thread. [Missing image file: NFMnOb2.jpg]
>2013 >Computer smart as a 4-year-old >http://phys.org/news/2013-07-smart-year-old.html Does any /sci/ know in reality that anyone actually reads and trusts these news like these? I can imagine young people or those who lack scientific knowledge would trust something like that. I can't imagine what kind of mental damage would cause on them.






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