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/sci/ board - Science & Math - February 2014

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Most viewed threads in this category

Are there some people here who... 3 posts and 0 image replies omitted. Click to view.
Are there some people here who understand chemistry? I have a basic problems that I need to have solved, but I can't figure it out myself. Anyone?
Gonna purify %40 Alcoholic... 7 posts and 0 image replies omitted. Click to view.
Gonna purify %40 Alcoholic mixture. Set doesn't have any thermometer. How to stay below 100 Celcius? I'm thinking of using the least possible fire until the expected percentage of alcohol is received, any more suggestions or ideas?
This is not a homework so... 2 posts and 0 image replies omitted. Click to view.
This is not a homework so I'll try to ask. We in /fit/ just need help. >>>/fit/25132955 tl;dr of that thread: how much I have to deadlift to flip over a 400kg tyre
Prognathism (the extension of... 4 posts and 0 image replies omitted. Click to view.
Prognathism (the extension of the jaw beyond the nose) is a primitive trait. It is found to be more prominent in ALL pre-humans, and has decreased in prominence for 20 million years since we diverged from our proto-simian ancestors. The jaw shape is cause for a skull structure which does not allow for brain expansion due to the placement of cranial musculature. The shortening of the jaw is tied to cranial expansion at several gene sites according to new molecular genetic studies, and prognathic individuals are highly correlated to low intelligence and criminality. The most prognathic species, africans and aborigines, are the least intelligent. The least prognathic are whites and east asians. http://connection.ebscohost.com/c/articles/9710170511/relationships-between-cranial-capacity-prognathism-plio-pleistocene-hominids http://books.google.com/books?id=8ET4GVAJvdAC&pg=PA413&lpg=PA413&dq=prognathism+and+intelligence&source=bl&ots=ekfNx7LJFH&sig=skzvX8973pHWumrbbFJmptZaOkw&hl=en&sa=X&ei=vOL_UsL_KtXDoASwsYCQBg&ved=0CGAQ6AEwCA#v=onepage&q=prognathism%20and%20intelligence&f=false
I was forced to take freshman... 7 posts and 0 image replies omitted. Click to view.
I was forced to take freshman level required humanities courses this semester for my degree. I have an A- I haven't even opened the book yet. Is this a waste of my time?

The Astronomy Picture of the Day

The Astronomy Picture of the... 4 posts and 0 image replies omitted. Click to view.
The Cosmic Web of the Tarantula Nebula It is the largest and most complex star forming region in the entire galactic neighborhood. Located in the Large Magellanic Cloud, a small satellite galaxy orbiting our Milky Way galaxy, the region's spidery appearance is responsible for its popular name, the Tarantula nebula. This tarantula, however, is about 1,000 light-years across. Were it placed at the distance of Milky Way's Orion Nebula, only 1,500 light-years distant and the nearest stellar nursery to Earth, it would appear to cover about 30 degrees (60 full moons) on the sky. Intriguing details of the nebula are visible in the above image shown in near true colors. The spindly arms of the Tarantula nebula surround NGC 2070, a star cluster that contains some of the brightest, most massive stars known, visible in blue on the right. Since massive stars live fast and die young, it is not so surprising that the cosmic Tarantula also lies near the site of a close recent supernova. Tomorrow's picture: distant horizon apod.nasa.gov/apod/
What does this sign mean? 10 posts and 0 image replies omitted. Click to view.
What does this sign mean?
You are obsessed with proving... 1 posts and 0 image replies omitted. Click to view.
You are obsessed with proving you are more intelligent than other people, opinionated, can't take any criticism yet are quick to nitpick every insignificant detail, turn every discussion into a squabble and quibble over irrelevant things when everyone else is trying to move on and make some progress. Why do you expect to have a successful career in R&D? Seriously, I have seen people here debating whether picking up a pencil and dropping it is proof that next time you pick up a pencil and let go it will fall. The only thing that you respect are arguments from authority, this might get you through university but once you are out in the real world I can't imagine how you are going to succeed without a well refined internal method of validation. You will constantly be showered with opportunities and meet good reasonable people but none of them will fulfill your impossible standards. Because the only relationship you can tolerate is hierarchical that is the only relationship you will find yourself in, once exhausted by the hucksters telling you what you want to hear you will reach in desperation for the bottom of the corporate ladder. This could still be the start of a decent career, however advancement would require cooperating, discussing and sharing ideas with others as equals, naturally you will fail to shut up, listen, absorb information, learn and commit to the greater goal that the company is spending millions on, you will never be moved to a new department, you will stay as a lab technician or whatever until the contract ends or you find a company willing to pay you slightly more for another isolated limited task, and if you ever find yourself in a leadership role you will be one of those bosses who fail to properly communicate and blame the team for problems that require leadership to solve. That will be the measure of your success as a human being and the extent of your contribution to science.
http://www.theguardian.com/commentisfree/2014/feb/16/climate-change-deniers-put-up-or-shut-upI... 133 posts and 8 image replies omitted. Click to view.
http://www.theguardian.com/commentisfree/2014/feb/16/climate-change-deniers-put-up-or-shut-up I don't like alarmists so how fucked are we? Does science really know what's going to happen?
why does the Tschirnhaus... 0 posts and 0 image replies omitted. Click to view.
why does the Tschirnhaus transformation work?
can anyone help me with this?... 12 posts and 0 image replies omitted. Click to view.
can anyone help me with this? i'm pretty shit at maths and have no idea how to calculate the top shape any help appreciated
>PhD in math>Any job I... 9 posts and 2 image replies omitted. Click to view.
>PhD in math >Any job I want >300k starting
Saw this in another thread. Is... 15 posts and 1 image replies omitted. Click to view.
Saw this in another thread. Is the average /sci/ user more intelligent than Waterloo students fresh out of high school? http://lindsaythurber.rdpsd.ab.ca/docs/library/Waterloo%20Math%20Readiness%20Test.pdf
I'm starting to study... 0 posts and 0 image replies omitted. Click to view.
I'm starting to study c++, with Programming: Principles and Practice Using C++ Book by Bjarne Stroustrup I have no experience in programming and I was asking myself what was yours. I'm more interested in pros and cons, or your personal "feel" towards the subject.
thoughts? 20 posts and 1 image replies omitted. Click to view.
thoughts?
ITT: Scientific ideas that you... 140 posts and 1 image replies omitted. Click to view.
ITT: Scientific ideas that you find/found very uncomfortable after understanding. I'll start: >Godel's Incompleteness Theorems >Uncertainty Principle Picture is not related.
Is architecture a STEM career? 8 posts and 0 image replies omitted. Click to view.
Is architecture a STEM career?

Chemistry journals

Chemistry journals 3 posts and 0 image replies omitted. Click to view.
Hello, iam a chem grad and i wanted to download 2 books but unfortunatly i don't have acess trought my university. besides sci-hub, can anyone try to get this for me? the links are below http://onlinelibrary.wiley.com/book/10.1002/9783527641949 http://onlinelibrary.wiley.com/doi/10.1002/047084289X.rs089m/abstract

Stoichiometry

Stoichiometry 6 posts and 0 image replies omitted. Click to view.
/sci/, i dont really need/want the answer. I just wanted to know how to get the answer, and you are the smartest guys i know. Everything i've tried has failed. W2(SO4)+Mg3(PO4)2 ----> 2WPO4+3MgSO4 How would i find the amount of moles of Magnesium Sulfate if i have 3.46 Moles of Tungsten Sulfate.?
what happens when agalaxy goes... 5 posts and 0 image replies omitted. Click to view.
what happens when agalaxy goes supernova?? would the black hole be as big as the galaxy?
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