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/sci/ Science & Math

Threads added between 2013/10/30 and 2013/11/06

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Most viewed threads in this category

12 more posts in this thread. [Missing image file: image.jpg]
www.stanfordbinet.net Is that a reliable IQ test? I'm a little skeptical of my results. pic related
60 more posts in this thread. [Missing image file: 1383514558343.jpg]
Why are the smartest people (very high IQ) usually apathetic and/or depressed? Is there a negative correlation between high IQ and happiness?
15 more posts in this thread. [Missing image file: wolframalphapro.png]
Is Wolfram Alpha Pro worth it? I can get it for $30 a year because I'm a student.
31 more posts in this thread. [Missing image file: c.jpg]
sup /sci/, Due to extreme lazyness and arrogance I thought I was able to pass the course computer science without doing anything. I proved myself wrong. Now I need to make a small project, which isn't hard for someone with a little knowledge about C. Does anyone know a site where I can ask for someone to make the code for money? Or is anyone here able to help me, with something in return ofcourse.

Mars One

15 more posts in this thread. [Missing image file: 1291220153_1378505193.jpg]
So, /sci/, are they gonna make it? http://www.mars-one.com/en/

Stupid questions thread

17 more posts in this thread. [Missing image file: 323523452345236.jpg]
In circular motion, why the fuck does -\theta\dot(t) r\hat(t) = \omega\vec(t) \times \theta\hat(t)

Biomedical Engineers?

25 more posts in this thread. [Missing image file: halflife-hugh-laurie.jpg]
Where u at? I'm kinda struggling as a BME major, 2nd year, FIU >Growing tissues and organs >improving diagnostic equipment >robotized prosthetics >drug delivery systems >quantum crystals >bone scaffolding >surgical equipment so what do you know about it? any BME majors or professionals in here?

Beyond the Threshold Hypothesis

5 more posts in this thread. [Missing image file: about_erdos.jpg]
> Conventional wisdom holds that above a certain threshold of cognitive ability (for example, an ability level in the 90th or 95th percentile), differences in cognitive abilities no longer matter; that is, for all who have cognitive abilities beyond that threshold, individual differences in occupational and creative achievements will be a function of hard work, personality, and opportunity. For example, Malcolm Gladwell writes in his popular book, Outliers: The Story of Success (2008, p. 79), ‘‘The relationship between success and IQ works only up to a point. Once someone has an IQ of somewhere around 120, having additional IQ points doesn’t seem to translate into any measur- able real-world advantage.’’ While this threshold hypothesis has intuitive appeal, the literature in talent development and other areas does not support it. In this article, we will present recent findings that show that even in the top 1% of cognitive ability, higher levels of cognitive abilities do make a person more likely to make outstanding achievements. How does it feel to know that no matter how hard you work, you will never be able to match those born superior to you?
1 more posts in this thread. [Missing image file: 1377552548704.jpg]
Hey /sci/. I got a favor to ask. Where can I get the solution manual to the Baby Rudin? Is there an official one because I always find ones written by other people.
4 more posts in this thread. [Missing image file: 22_24_a.jpg]
/sci/ pls help me identify this sugar. I know it's L-[something], but i can't figure it out precisely because I'm not aware of the significance of the methyl end without the hydroxyl group at the bottom in the nomenclature. pls /sci/, pls
0 more posts in this thread. [Missing image file: ahnul.jpg]
comment section is open. have fun. http://hopejahrensurecanwrite.com/2013/11/06/why-i-keep-writing-fcking-instead-of-you-know-what/
7 more posts in this thread. [Missing image file: 1.jpg]
organic chemistry or biochemistry people: can you help me understand this reaction sequence. I know this is a enzyme mediated reaction involving a tyrosinyl radical and oxygen, but how exactly would I go about drawing arrows? This is not homework, this me wanting to know more than just what was brushed over in my course.
1 more posts in this thread. [Missing image file: Newhopecalgary-GodAtWorkAccounting528.jpg]
I have an Accounting exam tomorrow at noon. I feel pretty good with almost everything except for % of Accounts Recievable, calculating Interest Revenue, and interest maturity. If you don't have anything else to do for an hour or so, would you be willing to help me refresh a little?
5 more posts in this thread. [Missing image file: pol in gif form.gif]
>>>/pol/22653215 >/pol/tards arguing over evolution and gravity Oh god, make it stop.
7 more posts in this thread. [Missing image file: thorium.jpg]
What does /sci/ think of thorium?
23 more posts in this thread. [Missing image file: crab crap.jpg]
If cancer cells are immortal, why don't we just become huge walking tumors? After all, the point of living is to keep being alive until the end of times to preserve the species. >Search cancer in google images >Results only show white people >Search malnutrition in google images >Results only show niggers Is cancer a racist disease?
8 more posts in this thread. [Missing image file: 1382487317024.jpg]
>muh spectroscopy How have chemists deluded themselves into thinking they are superior?
55 more posts in this thread. [Missing image file: Untitled.png]
If two photons travel in the opposite direction, wouldn't each photon perceive the other photon to be traveling faster than the speed of light? What about when multiple photons travel in multiple directions from different starting points; wouldn't at least some of the photons be traveling at a speed in between -c and c relative to at least one of the frames of reference? >Pic related.
8 more posts in this thread. [Missing image file: triple.jpg]
See this stuff, /sci/? It's petroleum jelly-based. If I heat it in a microwave to the point where it's liquid enough to mix something else in with it, does that destroy the antibiotic properties of it? Reason: I want to add tea tree oil in with it. Thank you for your attention.
4 more posts in this thread. [Missing image file: raid6.jpg]
Hello /sci/, cross boarder here. Can anyone explain to me, in plain English, how RAID 6 works? RAID 5 is easy enough to understand by simply stating that for any given stripe, the parity bit tells you whether the number of 1s in all the other bits in that stripe is even or odd. You then use that info to determine whether you need to add a 1 or a 0 when rebuilding a missing bit. But I can't find any kind of simplified explanation like that for the second parity bit in RAID 6 that allows you to rebuild two missing bits, even if both of the bits are part of the data. Everyone either resorts to complicated math notation (which I don't want to take the time to figure out), or just says "you add another disc and magic, it works." But I'm the type of person who likes to understand, at least to a certain extent, the technology that I'm using, and I can't believe that there isn't a way to explain RAID 6 in layman terms. I understand that the second parity block calculation involves a bit shift operation, so maybe it's better to imagine it in terms of bytes on each stripe and not bits? But I still can't wrap my head around how bit shifting each byte on the stripe would help to get some kind of magic information that allows you to recover 2 missing bytes. If someone could please explain this to me in simple terms I would really appreciate it.






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