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/sci/ Science & Math

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Most viewed threads in this category

2 more posts in this thread. [Missing image file: 1348012294234.gif]
astronomy question: if you were standing at the earth's south pole, which stars would you see rising and setting? im guessing the answer is no but i cannot argue why. can you fill me in?
26 more posts in this thread. [Missing image file: NewtonsCradle.gif]
If a Newtons Cradles was placed in a vacuum so that there was no air resistance. Would it keep swinging forever? If so, how difficult would it be to make? If not, what would slow it down?
13 more posts in this thread. [Missing image file: 1347829077087.jpg]
Alright so why the fuck do I suck at chemistry so bad that I freeze up on the tests and bomb them? College chemistry by the way. Just took my first test and got my ass handed to me despite spending ridiculous amounts of time with the material
10 more posts in this thread. [Missing image file: consider the following.jpg]
What's the algorithm for winning the "toothpick game"? The rules are two players alternately take 1-3 toothpicks from a pile that initially has 11. The goal is to leave the other player with the last toothpick.
2 more posts in this thread. [Missing image file: infinite-series-square.jpg]
Homework question that I'm stumped on. Geometric Series. Okay here goes. A culture initially has 5000 bacteria, and the number increases by 8% every hour. a) How many bacteria are present at the end of 5 hours? b)Determine a formula for the number of bacteria present after n hours Variables should be T1= 5000 r= 1.08 n= 5. I plug them into Sn= T1(r^n - 1) ---------------------- r-1 But I keep getting 29,333. The correct answer is 7356. Any help would be great. HS fag btw
59 more posts in this thread. [Missing image file: 1343198136739.gif]
>no genius IQ >no qt gf >no talented Why should i live then? I am just gonna kill myself.
0 more posts in this thread. [Missing image file: 1335869550885.jpg]
Fuck the haters, let us have social science thread. Methodological individualism vs methodological collectivism. Wikipedia calls this a "European problem" in the sense it's pretty much only in Europe people are talking about it. Thoughts about it?
10 more posts in this thread. [Missing image file: frustration2.gif]
Need help /sci/ I just started grad school in physics (phd program). I had taken a grad course on QM at my undergrad, so the advisor recommended I take QFT especially since I was interested in joining the theory group there. But I feel seriously under prepared for this course. I haven't taken any group theory at all, nor differential geometry. I'm able to understand only about 70% of the math steps that are talked about in class, however I feel like I'm understanding like 2% of the concepts. I need to do good in this course, I can't drop it because I need to take so many hours or I get thrown out of the program, and if I don't maintain a certain GPA I get thrown out too. Plus I want to join the theory group eventually so if I ask to join and they see I got a B or C in QFT that will look really bad. How screwed am I? Can anyone offer advice?
10 more posts in this thread. [Missing image file: images-16.jpg]
Can you catch autism? I want to pursue a degree in electrical engineering but I fear I'll get the spergs.
18 more posts in this thread. [Missing image file: 1343262157996.jpg]
Requesting the science tier list. Thanks.
4 more posts in this thread. [Missing image file: 1346189906788.jpg]
If y = 2x^3 + 18^2 - 20 for x greater than or equal to 0 but less than or equal to 10, the maximum value of y occurs when x = what? I don't understand why the maximum value of y would not occur when x = 10, but when x = 6. What am I not understanding?
2 more posts in this thread. [Missing image file: hiii.jpg]
We fusion now. http://www.foxnews.com/science/2012/09/23/another-step-closer-to-fusion-power/
11 more posts in this thread. [Missing image file: Creep___Radiohead_by_Enuma.jpg]
how possible is it that a song triggered my depression?
3 more posts in this thread. [Missing image file: Accounting Snip.png]
Sup /Sci/ First timer here. I come asking for your help. I have an accounting assignment and I need a bright spark to help me. I JUST CANT GET THIS SHIT TO BALANCE. been at it for about 4 hours now. any help would be appreciated pl0x
5 more posts in this thread. [Missing image file: [HorribleSubs] Dog Days S2 - 12 [72(...).jpg]
5 more posts in this thread. [Missing image file: 1218851090781.gif]
Hypothetical time. Let's say that a scientist has stumbled upon a method of inter-dimensional travel. The manner in which he DOES travel is irreverent; for the purpose of this problem, the act of traveling will place him in the closest analogue of the location from which he traveled from (i.e. leaving from New York will mean he arrives at that very same spot in another dimension's New York/area on Earth where New York would be.) Now, assume that we live in an "omniverse"; a system in which there is a universe for every possibility (i.e. an infinite number of universes). What are the chances that the traveler will end up in a world that is exactly the same as the one he left (meaning that the difference between the two could be as small as a subatomic particle NOT appearing in the EXACT spot in did in the original universe) or one noticeably different?

Mathematical Reasoning

1 more posts in this thread. [Missing image file: cosmonaut.jpg]
What kind of mathematical reasoning is this called? Where can I learn this? is this just a very intelligent person? Is this a style of reasoning? Any relevant input is welcome. laymann~
2 more posts in this thread. [Missing image file: 1309579100564.jpg]
What interesting observations have you made with mathematics, /sci/? For example, for 9 multiplied by x, the answer's first digit is x - 1, and its second digit is 10 - x. 9 x 3 = 27. 3 - 1 = 2, 10 - 3 = 7. 27. 9 x 6 = 54. 6 - 1 = 5, 10 - 6 = 4. 54. 9 x 9 = 81. 9 - 1 = 8, 10 - 9 = 1. 81.
5 more posts in this thread. [Missing image file: Chrysanthemum.jpg]
When you look at a certain far away place in the space using a hubble telescope, what are you looking at exactly? Is it what currently happening at that place? Or many things happened already before the image reached you? Does my question make any sense? Not a /sci/ regular. Sorry for my English. I hope you catch my drift.

Citation request

2 more posts in this thread. [Missing image file: 1348471465845.jpg]
ikenbot.tumblr.com/post/32276769764/eternal-clock-could-keep-time-after-universe Hey, i'm a lowely non-hard science major. Would someone care to explain this, or perhaps reference a scholarly article for me to read. I'm too smart for pop-science, but not knowledgable enough to tackle the papers. Anything in between is appreciated. Thanks!






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