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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
11 more posts in this thread. [Missing image file: 1323705903657.jpg]
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?
36 more posts in this thread. [Missing image file: chemical-eng-lab-412x264.jpg]
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.
20 more posts in this thread. [Missing image file: 7343989318_5c2e69edf9_o.jpg]
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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Yo /sci/, let's say that I wanted to explode something in my backyard: what would I need to know in order to not burn my house down? I'm assuming I would need to know a fuckload about solving partial differential equations, the heat equation, and some chemistry.
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I have been reading a little philosophy and this is the impression I got: 1. Eastern philosophies are basically religions. Bullshit. 2. Continental philosophy is bullshit. 3. Analytic philosophy is mathematics for the mathematically handicapped (those who are entertained by the rigor and formalism of mathematics but lack the skills required to do actual mathematics). Also bullshit. There are many legitimate questions that philosophy try to answer, but fail at it. If you peel all the philosophical crap you get stuff that fall within the domain of mathematics. What do you think?
4 more posts in this thread. [Missing image file: halp.png]
Hey /sci/, I need help with one of my assignments. I'm pretty scrubby when it comes to these things, can somebody please decipher both formulas in the picture?
14 more posts in this thread. [Missing image file: galaxy.gif]
/sci/, I need help from astronomers or physicists here. In my facultative astronomy class, we had to choose a week-long project. I'm a programmer, so naturally I chose to do one of those gravity simulation engines. For stuff like simulating the solar system, moons, etc. I already planned everything out from a software perspective, but then I remembered that the universe is not actually 2D. I never worked with 3D graphics except for some WebGL stuff, and it would definitely be an overkill for a week-long project. Will it be a problem if I chose to do everything in 2D? Should I expect high errors? I want this to be as good as it can because I might submit it for a competition.
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Ask a first year Australian Medical Student anything.

Chemical engineering

5 more posts in this thread. [Missing image file: 3om6vl.jpg]
Which specializations is more interesting and less mundane? Biopharmaceutical or petrochemical industry?
2 more posts in this thread. [Missing image file: 8142012195542etytery.jpg]
Really simple question but can't get an answer out of Google. In my calculusII book they say a power series expansion (Summation of cn(x-a)^n ) is valid for |x-a| < R. What does R stand for? Is it the set of all real numbers? An arbitrary value? If it is an arbitrary value, how do we pick an R?
1 more posts in this thread. [Missing image file: 1350519580666.jpg]
Are the prescription amphetamines of today such as Adderall and Vyvanse as neurotoxic as MDMA and it's derivatives? If so, then why can't MDMA be a CII drug?

Friction and Demons

9 more posts in this thread. [Missing image file: motion_friction1_240[1].jpg]
You (T) state that friction stops a rolling ball, your friend Faust (F) says that the effect is caused by demons. The discussion could be continued as the following: T: I do not believe in demons. F: I do. T: I can not imagine how to explain friction with demons. F: Demons arise before the moving object and push them to eventually stop. T: I do not see any demons, not even on the most rough table. F: Demons are very small, in fact, even transparent. T: But on rough surfaces, the friction increases. F: Yes, there are more demons. T: If the surface is rubbed with oil, the friction reduces. F: Demons drown in oil. T: If you polish the table, the friction decreases and the ball will roll farther. F: You sweep the demons from the table. They inhibit less because there is less of them. T: If the ball is heavier, the friction increases. F: More demons push the heavier ball and that's why the ball breaks more of their bones. T: If we push a brick lying on the table with an ever increasing force, the bricks won't move as long as the friction is in balance with the pushing force. F: Yes, of course. Demons push hard, they prevent the brick from moving. But they can do that only to a certain point. T: But when I move a brick, the friction stops its movement. F: When the demons subside, the brick crushes them. Their broken bones hinder sliding (if Faust had a suitable device, he could use a loudspeaker tied up with an amplifier and microphone, and listen to the demons breaking bones.) T: Why do I not hear that. F: Just pull your finger on the table.
22 more posts in this thread. [Missing image file: 1349532488776.jpg]
What the fuck are with "study groups"? I thought this bullshit would stop once I hit advanced math. I'm in real analysis and number theory now. Granted not super omg uber advanced or anything, but people STILL ask for study groups. I figured the caliber would be a little higher. But nope. A bunch of people that bring a book or two and then sit around either bitching about the teacher or asking for help without thinking about it for a second. I tried studying with a few people this semester. It usually ends up with me explaining how to do every...single...fucking...problem. What the fuck is this shit /sci/?
10 more posts in this thread. [Missing image file: Screen shot 2012-10-09 at 3.04.32 PM.png]
Where do you guys download textbooks from? I can't find any torrents covering my needed books.
0 more posts in this thread. [Missing image file: powedered toast man.jpg]
Hi /sci/, Need help understanding this classical mechanics problem, any guidance would be greatly appreciated: A 2.2 kg mass is moving under the influence of the potential U(x) = 960x - 952x^2 + 352x^3 - 59x^4 + 4x^5 Assume the units for the constants allow for x to be in meters and U to be in J. One of the equilibrium points for is stable. If the mass starts at this point with energy 10 J, what will the motion be like? Be specific. At the very least, I understand that there exists an x such that U'(x) = 0 and U''(x) > 0. That's all I got. I'm supposed to have an intuitive sense of how this plays out. I clearly don't.

Calculator halp

7 more posts in this thread. [Missing image file: 1283805009594.jpg]
Hello /sci/, I have a physics test coming soon and it turns out I can't use my tablet as a graphical calculator. I am also a poorfag. What is some cheap calculator that I could buy? It doesn't need graphing, I'm mostly looking at squaring/powering and getting degree values of sin/cos/tan/arcsin/arccos/arctan functions here. It would be nice if it could evaluate simple expressions as well. >itt: recommend: cheap calculators with basic trig functions >
5 more posts in this thread. [Missing image file: 1345002106574.jpg]
Will we see civillians in space? Will terraforming happen in the next 200 years? What's the probability of finding intelligent life in space? What's the probability of finding it in our galaxy? What's the probability that man will never truly explore space? If I live to be 91 (18 right now) will I see anything interesting?
16 more posts in this thread. [Missing image file: Untitled.png]
sup /sci/ Is there a program where I can imput some values on a time/distance graph and get the velocity and acceleration graphics.






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