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/sci/ Science & Math

Threads added between 2013/09/04 and 2013/09/11

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Most viewed threads in this category

7 more posts in this thread. [Missing image file: gview.jpg]
Hey /sci/. Does anyone know where I can download gaussview for free? Where does /sci/ get its specialist software without paying for it?

Arc Reactors

5 more posts in this thread. [Missing image file: 919262_947874909156_685006061_o (1).jpg]
Alright sci/ heres the deal, i'v got some theroies for an arc eactor and was wondering if you wanted to take a look??? here's a friend Alright guys, first we will never find a METAL that will withstand the enormous amounts of heat or pressure required to break the coulomb barrier. We need to look into ceramics, also ceramics will also offer the best solution for superconductivity. However we will need to find a ceramic that is not only capable of withstanding said heat, we need to find one that will continue to be superconductive at temperatures much much higher than the current peak temperatures which I think are about 70-100K (around -250F). Now we have a material strong enough, now how do we propose generating the millions of degrees and/or millions of atmospheres of pressure? The coulomb barrier is broken by excessive enough amounts of either or a balance of both. I suppose I should mention the coulomb barrier is the electrostatic force that repels like charged particles (proton and proton) similar to magnets resisting each other. Keeping an atom intact and not ionizing it (separating the electron from the nucleus) will reduce the overall positive charge, however ionization occurs at high temperatures anyways (your light bulb glows due to ionized gases). There are also other ways of reducing the overall positive charge. Hydrogen isotopes, deuterium and tritium, contain one or two neutron in their nucleus, this reduces their overall positive charge making the coulomb barrier lower and easier to achieve. This brings me to my next issue...
3 more posts in this thread. [Missing image file: download.gif]
A gas has a density of 5.56 g/L What volume in milliliters would 4.25 grams of this gas occupy? What would be the mass in Kilograms of 1.0m^3 of this gas?

PhD or MD

18 more posts in this thread. [Missing image file: axnbreakis050003_neu.jpg]
In the US, which one is more difficult to get (lab, years, stress, kissing asses, etc) and which one is more respected by the general public?
0 more posts in this thread. [Missing image file: small_succulent_plants_2558.jpg]
I want to master in plant biology and environmental science, are there any interesting readings I could have on those subjects ?
16 more posts in this thread. [Missing image file: 1r8ybzw4.wizardchan.minimum_wage_waifu.jpg]
What would happened if I just turned the entirity of my attention and spare time to learning maths? Give this example, say I'm a 20 yr old taking first year calculus, (and some other sciences for that fact). This class is so slow, that if I took all of my spare time, I could probably know up to Calc 3s before the end of the semester. Now, what if this time was extended over a longer period? By the time I'm taking grad school maths, I would have taught myself the knowledge of phd level maths, and would be able to challenge theories, have stronger thesises etc tl;dr, can you actually make yourself some kind of math jesus? ---- If you autisticly put all of your spare time into maths (Which I probably wont do since i like having sex and experiencing life), would you be able to turn out a significant result by your old age? This is given someone of a moderate deviation of intelligence (Take me for example, 125-129 verified) I'm thinking someone like Feynman,

Probability and Statistics for Scientists and Engineers

2 more posts in this thread. [Missing image file: outer-space-stars.jpg]
I've never taken stats before. It's taking me hours to get through a 6 question assignment. It has stuff like P(A|B) and P(A U B) and shit like that. It seems to be a lot like physics. You have to find the correct formula for each problem, but it takes me too long. If I stay at this pace I will not do well in the course. What should I do sci? This course is taking up half of my study time and I have 4 other courses. I have taken other 200 level math courses and I don't remember them being this time consuming.
0 more posts in this thread. [Missing image file: 1016colonel_meow.jpg]
I have an answer, but does anyone know where I would submit it? "The observer(i) exists within the field (lim(i>5)={(cos(?)*sin(?)*cos(?),sin(?)|i<?<c2, i<?<c2}=10) whereby {e[K°/t2]=(m2/c)*(m-m/c)/4}."
1 more posts in this thread. [Missing image file: challenge.png]
Any ideas?

Python programming

6 more posts in this thread. [Missing image file: 1375315312209.jpg]
Hey /sci/, I have a problem with some school work. My assigned me a work where I have to create a program (originally in c++) that calculates the age of galaxies'clusters, based on X ray emission. But, since I'm an absolute noob in computer science, I don't know how to use c++ and I figured out that I won't have time to study it. I know a little bit of python, and I d'like to ask you if there's any library to do such work. I really need some help. >tl;dr how can I elaborate an image with python, in order to base a calculation on it?
2 more posts in this thread. [Missing image file: Captura de pantalla 2013-09-11 a la(...).png]
/sci/ need your help right now
1 more posts in this thread. [Missing image file: 1359390305545.jpg]
Need some help with mathematical induction.. sum_(j=1)^(2n-1) (-1)^(j-1) *j^2 = n(2n-1) Where i actually am : 3.) n->n+1 n(2n-1)+(-1)^(2n-1) * (2n)^2 +(-1)^(2n) * (2n+1)^2 I dont know what to do now Can anyone help me out here ?
13 more posts in this thread. [Missing image file: 2.jpg]
I cant't figure out this math problem! a boat travels downstream 36 miles and then came back. Current speed is 5 mph and total trip took 3 hours. whats average speed of boat relative to current? Please help me out. It's my last problem! pic not related

poorly documented slides fml

2 more posts in this thread. [Missing image file: frodo.png]
If I flip a coin four times, is the sample space ? = {h, t} |?| = 2 or ? = {(h,t),(h,t),(h,t),(ht)} = 4
1 more posts in this thread. [Missing image file: 28.jpg]
hey /sci/ I'm a senior who is planning to study mathematics at uni, but I'm struggling with some derivation exercises, especially ones that involve co-ordinate geometry. What I will specify in is probability and combinatorics, but I guess its evident that I would rather excel at everything. Some clearing up with limit would be nice as well. Any books/sites that could help? A private teacher is my last resort. thanks in advance!
15 more posts in this thread. [Missing image file: 250px-The_sun1.jpg]
If visible light and radio waves are both electromagnetic waves then how come light doesn't go through the matter, but scatter around? Is there a border within a frequency of a wave that can come through the matter unscattered?
6 more posts in this thread. [Missing image file: feynman family.jpg]
Has there been a greater post Einstein scientist than Feynman ?


32 more posts in this thread. [Missing image file: -moon-a.jpg]
It's fucking 13:24 where i live and i can see the fucking moon in the sky. WTF is this shit. btw where i live the sun rises at 6:30
0 more posts in this thread. [Missing image file: tumblr_lpqh8w1EPy1qizvnso1_r1_500.gif]
Any Wildlife Biologists/Conservationists here? Currently looking for a good school to transfer to after I finish these General classes needed. I've taken all the English, Psychology, College Algebra, Calculus, etc classes. Currently Maintaining about a 3.5+ GPA. Curious if anyone out there is familiar with the degree and could point me in the right direction for choosing a good school.
23 more posts in this thread. [Missing image file: BrVr4bwh1XiddTZPZrZr.jpg]
Quick question: You take a ball in space and make it spin and just float there (assuming it would keep it's shape). Now, how long would it stay spinning? What forces are there slowing it down?

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