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/sci/ Science & Math

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Most viewed threads in this category

9 more posts in this thread. [Missing image file: Elementary-Differential-E(...).jpg]
Does anybody have a pdf of the 10th edition of Elementary Differential Equations and Boundary Value problems by Boyce and DiPrima? I've searched far and couldn't find the 10th edition, probably because it was published pretty recently. Thanks.

What are some reliable online IQ test?

20 more posts in this thread. [Missing image file: iq.jpg]
Pls share the links, thanks.
27 more posts in this thread. [Missing image file: download (2).jpg]
What's your ''parallel universe''?
78 more posts in this thread. [Missing image file: bdc145f7a5ff066b9bd3821b3(...).jpg]
Can everything that exists be described with pure mathematics? Everything, as in all of the universe down to the tiniest quantum mechanical detail, etc. What if every single particle/wave/etc was assigned their own intrinsic mathematical "value" that would, at any given point in "time", contain all the possible information about that entity at that "time" and "place", etc. It isn't strictly impossible to assign mathematical "values" for literally everything, or is it? If not impossible, wouldn't that mean it'd be possible to contain essentially a "snapshot" (or many) of the universe on a sufficiently large storage media, in the form of a so-called "code" that contained every single intrinsic value from the universe and stringed them together into a working entity through perfectly efficient structures of this "code"? Wouldn't this mean that it's possible to emulate a universe using a sufficiently powerful (quantum?) "computer"?
14 more posts in this thread. [Missing image file: 1341790872332.gif]
Is there a program that draws lewis structure or graphics according to formulas such as "H3C-CH=CH-CH2-CH3"

Information / Energy conversion

5 more posts in this thread. [Missing image file: needsmorejpeg.png]
http://www.nature.com/nature/journal/v483/n7388/full/nature10872.html http://en.wikipedia.org/wiki/Landauer%27s_principle http://en.wikipedia.org/wiki/Entropy_in_thermodynamics_and_information_theory#Szilard.27s_engine tl;dr The heat energy generated by deleting 1 bit of information = the minimum energy required to encode 1 bit of information, and it is temperature dependent. I find this extremely interesting, but I'm a layman and it's left me confused; how does this conversion make any sense unit-wise? What happens when the temperature is variable? How would this law relate to quantum information?
17 more posts in this thread. [Missing image file: 108.png]
I have two angles a and b. How can I rotate a towards b at a constant speed in the shortest direction until they match? (the green arrow in my picture)

So how do we fix this problem.

62 more posts in this thread. [Missing image file: alastor-mad-eye-moody-7.jpg]
14 threads 13 with no science or math. 5 Blatant trolls (possibly more) 2 School Advices ONLY 5 out of 14 threads somewhat on topic. And it is a small miracle that there is no .999-1 on the front page.. somehow. What are the mods doing? Are they even here? Do they even exist? No one is reporting these threads, and or no mod is deleting them. Is it so much to ask to have a mod here to permaban whoever is trolling our board with reckless abandon? Now I know I might get criticism for this thread being off topic itself. But /q/ is gone and no one will respond to my emails. So my only option is to discuss this epidemic with you here at /sci/ unfortunately. (I do not expect good results since i already calculated at least 13 out of 14 of you do not belong here). >Computer Science why I am dumb? (troll or reaction to trolling) (No science or math) >Human blood is actually blue-greenish (troll) (No science or math) >Why does sadness exist /sci/ (somewhat legitimate) (No science or math) >STEM Majors (school advice) (No science or math) >Figure this one out, /sci/. (troll math) (No science or math) >Do you know what's ''Autism''? (troll) (No science or math) >Is time infinitely divisible? (somewhat legitimate) >mechanical engineering (school advice) (No science or math) >transhumanism (somewhat legitimate) (No science or math) >psychiatry (somewhat legitimate) (No science or math) >What's your opinion what happens by ''radiation''? (troll) (No science or math) >What's causing the universe to expand and how can we harness it? (somewhat legitimate) (No science or math) >Automation and the End of Human Work (somewhat legitimate) (No science or math) >How many books do you read per year? (/lit/) (No science or math)
18 more posts in this thread. [Missing image file: salt.jpg]
How much will 1 litre water containing 30 gram salt dehydrate me and when does it become dangerous? Can't find anything about via google.
41 more posts in this thread. [Missing image file: nolt0hnz.jpg]
7 more posts in this thread. [Missing image file: heyg.jpg]
Figure this one out, /sci/.
50 more posts in this thread. [Missing image file: brain project 3.jpg]
unpopular science opinions thread? >reductionism isn't the answer to everything >biology is a science >the human brain project will probably be an expensive fuckup
4 more posts in this thread. [Missing image file: 1371765873681.jpg]
Conciusness is now objectively proven to exist and measureable http://www.scientificamerican.com/article.cfm?id=a-new-method-to-measure-consciousness-discovered
39 more posts in this thread. [Missing image file: humanEvolution.jpg]
Which endeavor was more important to our evolution into homo-sapiens art or science?
47 more posts in this thread. [Missing image file: linear algbera.png]
Can somebody please explain to me the basics of linear algebra? I'm not asking for an outline of the entire class, just the complete basic idea(s) much abliged

Automation and the End of Human Work

52 more posts in this thread. [Missing image file: rob2.gif]
Automation is now happening at an unprecedented pace. The graph to the left depicts the decoupling between median income and productivity - productivity has continued to skyrocket while little human workers are needed as wages stagnate. We are not simply overcoming the limitations of our muscles. We are overcoming the limitations of our minds, and this is happening on a scale that is completely unprecedented in human history. We're seeing that artificial intelligence systems like IBM Watson have sufficient natural language understanding to beat the world Jeopardy champions simply by reading wikipedia. This same technology is now set to eat away at medical diagnosis by being able to better diagnose a patient than a panel of board-certified doctors. At the same time, we're seeing self driving cars fast approaching, with 6 million driving jobs in the US under threat from this technology. Robotics is also encroaching in factories and buildings, and Amazon's recent purchase of Kiva robots for warehouse automation is a great example of this. Self checkout counters, automatic instantaneous language translation, e-commerce, legal software, 3-D printing, and artificial helpers like SIRI are quickly becoming ubiquitous. Soon, Amazon is planning on using drones to deliver packages, and Google is now buying up the most advanced robotics companies on the planet because they too see where things are headed. Are we entering an era where there is little need for human workers? If so, what are the social and political ramifications of a populace that does not have a means of income? http://www.cbsnews.com/8301-505124_162-57578162/robots-are-going-to-take-your-job/ http://www.cbsnews.com/8301-18560_162-57601121/are-robots-hurting-job-growth/ http://www.wired.com/gadgetlab/2012/12/ff-robots-will-take-our-jobs/all/ http://abcnews.go.com/Technology/google-buys-boston-dynamics-acquires-robots-play/story?id=21233076
21 more posts in this thread. [Missing image file: 1389195674922[1].jpg]
20 more posts in this thread. [Missing image file: 1389170919403.jpg]
Which one sounds more likely?
17 more posts in this thread. [Missing image file: 1389080674637.png]
I've heard you guys are smart, so let's see. Current fastest answer times by board so far: /v/: 2 minutes /sp/: 3 minutes /pol/: 6 minutes /tv/: 12 minutes
36 more posts in this thread. [Missing image file: 13416788.jpg]
Supposed there's a planet that orbits a black hole, what would the view be like?

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