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/sci/ Science & Math

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Most viewed threads in this category

31 more posts in this thread. [Missing image file: mataa.png]
Why are germans so intelligent and hard working? Is it genetics? What's the deal? Germany is one of the most well-living country in the world despite the wars.
1 more posts in this thread. [Missing image file: F2F10CYGQOCAOYF.MEDIUM.jpg]
ok /sci/ I'm not sure if this is the right thread or should I move to /diy/ ...? Anyway, my college is doing some creative/innovative creation competition and it's themed 'healthcare and comfort'. So I was planning to make a handheld mist fan that blows Chamomile tea instead of normal water since Chamomile is good for self when drink or applied to face or make poultice. Unfortunately I can't find a tutorial to create a handheld misting fan. But I do find a tutorial for handheld AC instead (http://www.instructables.com/id/Handheld-Air-Conditioner-Unit/step2/Aperture-1-Executive-Ice-Container/) Except instead of the mist, of course, AC blows the cool air from it. So I was wondering if the benefit of Chamomile tea can still be used if I am to build this handheld AC? Or do you have something else to suggest?

Since /sci/ is a shithole

14 more posts in this thread. [Missing image file: 1332270900524.jpg]
and we haven't had this stupid ass debate in awhile: What is the best calculus book ever?
18 more posts in this thread. [Missing image file: Real_master_roshi.jpg]
Science of Dragonball How the Kaio Ken works The energy is drawn from the Dan Tian (energy field in the lower body, Chinese: ??), and sent out to the chest, back, head and four limbs. The Ki travels underneath the skin and causes the muscles to bulge and the flesh to become thick around the bones. As the Ki reaches the surface of the body in this dimension it manifests as heat, wind, and electricity. When Goku employs the Kaio Ken he opens up all the cells in his body and taps into their energy on a molecular and sub-molecular level. Goku’s cells, molecules, atoms, neutrons, quarks and all other sub atomic particles are opened up and tapped into for a very short amount of time.
1 more posts in this thread. [Missing image file: image.jpg]
Is there a site that has tutorials in all the topics in science? Khanacademy is nice, but I was looking for something in text form.
36 more posts in this thread. [Missing image file: 1346975290296.jpg]
It's easy to get caught up and excited with all this news. Some of these I recognize, some of them I did not hear about over the course of the year. How believable is all this stuff? http://www.buzzfeed.com/donnad/27-science-fictions-that-became-science-facts-in-2 Pic unrelated
2 more posts in this thread. [Missing image file: Physical Chemistry.jpg]
I've checked the /sci/guide and this list (http://pastebin.com/F5MGXnRF) but no luck so far. Anyone happen to have this (Physical Chemistry by Ignicio Tinoco Jr.)?
5 more posts in this thread. [Missing image file: fuck.jpg]
anyone know shit about simulating transistors with simetrix simplis? i've got some shitty make up problems from a study abroad course last semester that i have to finish up, and i don't have a clue what i'm doing. particulary trying to find the impedance at node A in this:
17 more posts in this thread. [Missing image file: terminator-robot-exclusive-660.jpg]
Simultaneous Equations: y+2x=5 2x^2-3x-y=16 This is something I've always been bad at, any help would be appreciated.

/sci/ related twitter accounts

0 more posts in this thread. [Missing image file: 1356286723055.jpg]
I use twitter as a news aggregate for things I like. I was thinking maybe we can post people worth following on twitter in relation to science/math and news.
3 more posts in this thread. [Missing image file: uguu34t.jpg]
Is there any hard proof that transsexualism is a neurological condition and not a psychological condition like they claim?
0 more posts in this thread. [Missing image file: 1357512150616.jpg]
For an equation like this: aA + bB <--> cC + dD The rate laws for the forward (f) and reverse (r) reactions would be, respectively: Rate(f) = kf[A]^n^m, and Rate(r) = kr[C]^x[D]^y, where n, m, x, and y are the exponents which are determined experimentally, not from the stoichiometric coefficients. The relationship between kinetics and equilibrium in this scenario is Rate(f) = Rate(r), therefore kf/kr, which equals Keq. However I was always taught that the equilibrium expression was: Keq = [C]^c[D]^d / [A]^a^b, where c, d, a, and b are the stoichiometric coefficients. My question is if kf/kr = Keq, why are the exponents different? I can't seem to find an explanation for this, but the only thing I can think of is that the above equilibrium expression exponents are actually the same as the experimentally determined rate law exponents, but only for single elementary step reactions are they the same as the stoichiometric coefficients.

List of arguments against physicalism about consciousness

4 more posts in this thread. [Missing image file: brain.jpg]
>>5416465 That thread seems to have reached a bump limit, so let's start another one. Many have a strong intuition that consciousness cannot be a brain process, but what are the arguments for this claim? I'm listing every one I can think of below. For some I list the names most associated with the arguments. While some of the arguments are pretty bad (e.g., number 4), I have heard every one of them from real people who were intelligent enough to be arguing about the relationship between consciousness and the brain. That is, they weren't dummies. Arguments that physicalism about consciousness is wrong 1. It is impossible to imagine how mere neuronal tissue could produce conscious experience (Huxely) 2. Failures of supervenience, such as zombies and inverted spectra, are conceivable (Chalmers, Locke, etc). 3. Mary learns something (Jackson). 4. Brains have mass, volume, and other physical properties, but experiences do not. 5. Paranormal phenomena (near death experiences, ghosts, ESP) are real, and involve consciousness implemented in a nonphysical substrate. 6. If shrunken so I can stroll around your brain and look about, I will observe neuronal processes, not experiences (Leibniz). 7. The soul is the seat of consciousness, and the soul is not physical. 8. Conscious experiences have intrinsic qualities, but science can only tell us about relational qualities (Russell, Rosenberg). 9. Consciousness cannot be observed; there will never be a consciousness detector that can tell you if a given creature is conscious. 10. Conscious experiences are not simply the movement of molecules, consciousness is more than mass in motion (Mill, Ward). Please, could you try to disprove this claims?
20 more posts in this thread. [Missing image file: UVWwrap-1.jpg]
When will this bullshit end? >Are we so different Hasn't human population genetics + high throughput sequencing over the past 10 years shown us that we are? (Jay et al. 2012, Reich et al. 2010, Novembre et al. 2008)
19 more posts in this thread. [Missing image file: 8xcCC.jpg]
Hello, I need some help. Are there any computer science oriented people that can help me achieve my goal? Basically, I am trying to access a university page to see who is in my class. But it is not allowed until you sign up for the class. I found the section in the page source that controls whether or not I could see the people in the class. It says "false" blah blah blah. If I change this to true and somehow save it, will it allow me access? Or is there anyway else I could get access. Your help is extremely appreciated. Thanks a lot.
42 more posts in this thread. [Missing image file: ukert.png]
Dear /sci/entists, I have a humble question on which I would like serious answers from people with far more qualifications than I have. This is why I am here. Space "anomalies" have always interested me, but because of my lack of education in the various hard sciences, I find myself agnostic about most theses. To be precise, when shown images of the Moon or Mars, and being told what to see, I find myself with little to no back-up. Here's an example: Ukert crater. It has a distinctive triangular shape. I am aware that such shapes can happen naturally on Earth, although this is usually on a much, much smaller scale. Can such shapes form naturally on such scales? I have found some of these anomalies to be computer glitches, but Ukert isn't a glitch. I'll post what I have, should this thread generate interest. Thank you.
6 more posts in this thread. [Missing image file: 1357532792553.gif]
can plastic surgery be done away with by 'fixing' genetics?
3 more posts in this thread. [Missing image file: images.jpg]
x^2 - 16x + 64 = 0 Find the value of the discriminant Describe the number and type of roots Find the exact solutions by using the Quadratic Formula please do this and tell me how you did it
1 more posts in this thread. [Missing image file: Capture.png]
whatts the name of this set?
1 more posts in this thread. [Missing image file: 1344770353449.jpg]
>mind is blown 'one could create heat engines such as combustion engines with an efficiency of more than 100%.' http://www.science20.com/news_articles/below_absolute_zero_boltzmann_distribution_gas_gets_inverted-100211






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