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/sci/ Science & Math

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Most viewed threads in this category

Orgasms While on Amphetamines

30 more posts in this thread. [Missing image file: 1282005351907.png]
/sci/ I had an experience a little bit ago, and I want to know the biology behind it. Why do you cum like a .50 rifle discharged when you masturbate on methamphetamine or adderall? Literally, it's so intense my vision went semi black. My cock was so hard it hurt. My PC muscles were spasming so hard i thought i ripped something. I had 10x as much semen too. Like my entire prostate drained out of my dick. I've never felt anything better in my life, not even snorting oxycontin. This is how it went basically. >smoking meth for the first time, usually snort it >dat rush.jpg >take massive hit, cock spontaneously gets hard for some reason >higher than I've ever been >suddenly, incredibly horny >quickly go to computer and find close-up porn so i can see penetration and imagine my cock going into a raw cunt >3 hours later about to cum with 40 tabs open >OH SWEET JESUS IM CUMMING FUUUUUUUUUUUUUCCCCCCCCCCK >actually make a loud noise I can't control and i start shaking and I accidently knock a glass off my desk and it hits the floor and breaks. >feeling too good to give a shit, massive load shot onto my neck and chair >mom opens door as I lay there covered in cum with porn on the screen and meth pipe on desk as my cock is still twitching >I have one week to find a place to live and then im kicked out
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Can wood fires melt steel? I'm in this argument and people are thinking wood fires can melt steel.
7 more posts in this thread. [Missing image file: ebooks_250x2511[1].jpg]
http://gen.lib.ru.ec is down! Not accessible by the use of any proxy. So where do I get my ebooks now from?
44 more posts in this thread. [Missing image file: Rosalind_Franklin.jpg]
Who are the most unappreciated scientists ever, /sci/? Pic related, she'll never be more than a footnote attached to the discovery of DNA's double helix structure. "Oh yeah and Watson and Crick copied a lot of their research from this lady but she died before anyone thought to give her credit."
2 more posts in this thread. [Missing image file: articular-cartilage-diagram[1].jpg]
What are the mechanical properties of cartilage? How do synovial joints lubricate the joints to reduce friction and wear? I cant seem to find any mechanical or material values for cartilage - i need to find a material that can simulate cartilage and synovial fluid.
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Bbw thread
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Hi, /lit/ here. Can science explain the essence of reality?

Transfer matrix method in python, photonics

14 more posts in this thread. [Missing image file: notes0.jpg]
Hey, guys. I'm working on a transfer-matrix program in python for my fourth-year project, for light propagating through a general layered medium. So far I've only implemented the 1D incident-ray case, and I can get correct values for Reflectivity, but not Transmittivity. My code can be found at http://dl.dropbox.com/u/3219541/photonics.py I'm using refractive index data from refractiveindex.info (currently for water at 253nm), and comparing with their reflectivity/transmittivity calculators (currently with a 10cm thick layer). In this instance, I get the correct reflectivity (0.02338), but my transmittivity is of the order of 10^-34, rather than 0.85182. Does anyone have any idea where I might have gone wrong? I will happily reply to clarify what I'm doing, variable names, and such. Picture: notes on my notation [1/5]

Story Time

40 more posts in this thread. [Missing image file: images.jpg]
/sci/ what is your absolute biggest ambitions in life? Mine is to recreate eugene podkletnov's experiment on rotating superconductors and if they are proven to be correct I would like to learn everything about them. You can never know for sure until you do it yourself, anyway /sci/ what is your absolute biggest ambition in life?

Applications of PreCalculus/Triginometry

7 more posts in this thread. [Missing image file: Toilet Paper.gif]
Anyone know how to find sis cos or tan by not looking at the unit circle?
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Do you guys also help with Excel homework? >Five students took a test and were scored on a scale of 0 to 30 (scores provided). Afterwards, the teacher decided to change the grading scale to 20-100, so that a score of 0 now equals 20 and a score of 30 equals 100. Using a formula for proportionate distribution, display the new scores. >mfw
20 more posts in this thread. [Missing image file: Escher__s_Infinite_Circle___II_by_sya.jpg]
Suppose you have a lamp that turns on then after 1/2 a second turns off. A 1/4 of a second later turns on again then a 1/8, 1/16 and so on. By the time a whole second has passed it will have flashed on and off infinitely many times. Now, when it gets to 2 seconds, will it be on or off? inb4 off because the bulb would have blown.
40 more posts in this thread. [Missing image file: lasdfasd.png]
Show how did you get the answer.
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How much harder is chemical engineering compared to chemistry? I'm almost done with my chemistry BA but with the lack of jobs, I'm transferring to a chemical eng. program. I have 0 work ethics and rely entirely on Focalin to get shit done. The tolerance issue is lurking beneath the surface. I didn't consider engineering until I got diagnosed with ADD and given a prescription this year. I noticed some courses like Transport Phenomena, Heat Transfer, Reactor Design, etc. that's not included in the chemistry curriculum. How tough are they? I thought physics 2 was a lot harder than organic chemistry, which was pretty easy.
30 more posts in this thread. [Missing image file: anunnaki.jpg]
What are your thoughts on anunnaki /sci/? I think they are ETs who claimed to be gods and that is why all the polytheistic religions are so similar.
7 more posts in this thread. [Missing image file: chemistry cat.jpg]
Hey /sci/, I can't figure out this last thermodynamics problem, the answer is not 1. Any help is appreciated. Consider the reaction C6H14(l) + 9.5 O2(g) ? 6 CO2(g) + 7 H2O(l) at constant pressure. Which response is true? 1. Work is done by the system as the reaction occurs. 2. Work is done on the system as the reaction occurs. 3. Work may be done on or by the system as the reaction occurs, depending upon the temperature. 4. No work is done as the reaction occurs.
1 more posts in this thread. [Missing image file: mathchat_whatismath.gif]
Can you help these people out please: >>>/b/432570790
4 more posts in this thread. [Missing image file: Calcdude.gif]
Were any of you guys really awful at math once? I've been struggling with it since coming out of my mother. When I see numbers, I just phase out. I do have ADHD, but I just absorb chemistry like a sponge so I don't think it's that. It makes me sad because I want to major in biochemistry.
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>cooking is like chemistry
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Hi /sci/! I know this is a dumb question, and I apologize for it. I'm far past this kind of problem usually (first semester physics student), but right now I just can't figure it out. It has nothing to do with my studies, but a friend of mine, still in school, asked me for help. here it is: in a city, 1 out of 6 persons go by tube without a ticket. a ticket inspector controlls 15 random people. and so on. my problem: what's the probability here? I know it's really easy, that's why I'm so annoyed I can't figure it out.

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