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/sci/ Science & Math

Threads added between 2012/09/05 and 2012/09/12

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Most viewed threads in this category

17 more posts in this thread. [Missing image file: srb-blades.jpg]
Does exsanguination (bleeding out) hurts? Where is it best to cut, is "down the road" on both arms and the jugular enough? How long does it take to die? Would vasodilators accelerate the process? Would it be any different if you were to drink alcohol or use drugs before doing it? Just asking, need to know.
20 more posts in this thread. [Missing image file: 61wx5q-DaHL._BO2,204,203,200_PIsitb(...).jpg]
Does anyone have a torrent of this book, or maybe an e-version they could upload? I have the international version, but this book is apparently the only international version in the fucking world where they actually swap the questions around. I need the US version so I can compare questions. Book is "Probability and Statistics for Engineers and Scientists (4th Ed.) Anthony Hayter"
21 more posts in this thread. [Missing image file: download_car.png]
where do you guys download math/sci textbooks from? library.nu and genesis are both down/gone :( is there a good torrent tracker just for books?
61 more posts in this thread. [Missing image file: Another_Mr__Uppity_design_by_Percyfan94.jpg]
Which major creates the most arrogant students? >I honestly think it's math. You guys learn one proof and you suddenly act like you know every secret of the universe.
11 more posts in this thread. [Missing image file: 1334120448692.jpg]
A hollow, conducting sphere with an outer radius of 0.250m and an inner radius of 0.200m has a uniform surface charge density of +6.37×10^-6 . A charge of -0.500x10^-6 C is now introduced into the cavity inside the sphere. a)What is the new charge density on the outside of the sphere? b) Calculate the strength of the electric field just outside the sphere. c) What is the electric flux through a spherical surface just inside the inner surface of the sphere? anyone???
14 more posts in this thread. [Missing image file: Ayn Rand copy.jpg]
Pros and cons of Ayn Rand's Objectivist philosophy?
8 more posts in this thread. [Missing image file: dickbuttbb.jpg]
Hey I'm having some trouble with this problem: A racing car moves on a circle of constant radius b. If the speed of the scar varies with time t according to the equation v=ct, where c is a positive constant, show that the angle between the velocity vector and the acceleration vector is 45 degrees at time t=sqrt(b/c). (At this time the tangential and normal components of the acceleration are equal in magnitude)
71 more posts in this thread. [Missing image file: Sam%20Harris[1].png]
What does /sci/ think of Sam Harris?
0 more posts in this thread. [Missing image file: Hello.png]
Hello /sci/, I need help with Excel 2010. I need to find the average using the "IF Function".
2 more posts in this thread. [Missing image file: 02PD0263-m.jpg]
STS-109 mission, orbiter vehicle Columbia. Taking off or landing?

Math tutoring?

11 more posts in this thread. [Missing image file: Scan 1.jpg]
Hey all. I'm wondering if somebody would be kind enough to tutor me in math? (Parabola crap) Regards.

LAAAAAAAABS

33 more posts in this thread. [Missing image file: aaaaaaaaaaaaaaa_fuck_by_stickthegho(...).png]
>"group work" in lab >get the equipment, set up the experiment for the group >say "Who would like to start?" >crickets >say "Ok, I'll do step 1" then perform step 1 >look across the bench "your turn for step 2" >tard says "I don't know what to do" >"read the directions" >tard says "i don't understand them!" >"ok, I'll explain" explain the procedure, point at the apparatus, mimic all required actions "that's all you gotta do" >tard says "ok, then why don't you do it?" >"this is a group effort, the experiment is so you have a grasp of the concepts we will be dealing with later. It's a concrete example to help you wrap your mind around the subject. You should really do this if you can't understand step 2" >tard "So this is the answer to question 4?" >"yes" >tard "do you know the answer?" >"yes" >tard "how?" >"I already know the answer, as I read the syllabus and the assigned chapters in the book. I have also seen this experiment before." >tard "so what's the answer?"
5 more posts in this thread. [Missing image file: 1322017446469.png]
How is R4 isomorphic to M2x2 (the vector space of two by two matrices)? In one the elements have four varibles (x,y,z,w)^t and in the other we just have x,y since 2x2 matrices only have two variables. What gives?

Ethics and shit

1 more posts in this thread. [Missing image file: Josef_Mengele.jpg]
Hey /sci/, I have this essay I need to write by tomorrow. The topic is really lame, and its about ethics in psych research. Anyone have any interesting ideas besides some of the Nazi experiments? Any suggestions would be fantastic.
12 more posts in this thread. [Missing image file: 080505075642-large.jpg]
Since there are different populations with genetically lower IQ than others, how do we help those people? Is it possible to raise intelligence to an average by artificial means?
3 more posts in this thread. [Missing image file: eng6yo.jpg]
Hi, any website out there for gaining easy solution and answers for math-probs? As an example, typing in function and in result you get values and graphs if needed.
0 more posts in this thread. [Missing image file: janitorstrikesback.jpg]
Did someone just delete this math question thread? Wtf, janitor. So, to repeat the help I gave, if OP is still there: 1/R=0.000766 (you said this) 1/(1/R)=1/(1/R) (both are identical) insert first into second: 1/(1/R)=1/(0.000766) you take it from here.
0 more posts in this thread. [Missing image file: Andy.jpg]
Taking a class on teaching elementary math. We learn everything in base 5 to mimick the basics. After 3 classes, looking at my knowledge vs most of the rest of the class, i am now a firm believer of rote learning.
6 more posts in this thread. [Missing image file: Light cone.png]
If I major in physics, what doors does this open up for me career wise? What abot mathematics? What did you major in, /sci/, and how do you feel about it? Where are you now?

What is the benefits of studing math an physics for an economist ?

6 more posts in this thread. [Missing image file: economists-job.jpg]
I want to get motivated to study math and physics more profondly even if i am an economist.






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