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/sci/ board - Science & Math - May 2014

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Most viewed threads in this category

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http://www.iflscience.com/physics/scientists-create-most-powerful-acoustic-tractor-beam-date
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How do you deal with handwavey bullshit? It's like someone threw a novel at my head and told me to remember it all. Fuck you Solid State. It's like Chemistry but worse. At least chemistry you can memorise shit and it doesn't try and be pseudo-mathematical
Hey guys. How do I name... 2 posts and 0 image replies omitted. Click to view.
Hey guys. How do I name organic acids?

QEG (Quantum Energy Generator)

QEG (Quantum Energy Generator) 1 posts and 0 image replies omitted. Click to view.
Hi /sci/, I admit I don't come here often, and that I am a total plebeian in both mathematics and science... But can someone explain this shit to me please? Is this fake or what? 1kw of power to produce 10kw of power? I thought it wasn't possible to draw more power than what you input + self sustain? http://www.collective-evolution.com/2014/04/30/free-energy-live-in-action-this-is-breathtaking-as-science-is-being-re-written/
How long would it take nuclear... 4 posts and 0 image replies omitted. Click to view.
How long would it take nuclear decay to result in complete destruction?
Hello,Lets say you have... 3 posts and 0 image replies omitted. Click to view.
Hello, Lets say you have 76.1nmol of a substance, and you want to make it to a concentration of 100uM by adding pure water. Using nano units: v = n/c = 76.1/100,000 = 0.000761nL Using micro units: v = n/c = 0.0761/100 = 0.000761uL Why are both these answers the same, they seem to both be in litres (L).
Hey /sci/Just a quick math... 9 posts and 0 image replies omitted. Click to view.
Hey /sci/ Just a quick math question; if you have a cumulative distribution with the values rather than the function, how does one find the variance? The values are also not discrete but rather separated into classes (eg -1000 < x < 0 = 5 frequency) Any help is greatly appreciated, thanks in advance.
How do you keep focus while... 8 posts and 0 image replies omitted. Click to view.
How do you keep focus while studying and stop from getting bored? I've used classical music in the past. Usually I study in silence but I can't keep it up for more than a few hours before it gets demoralising. (Yeah I know, take a break, but I can only go for 15 minutes after for some reason. It's like I burn out).
So /sci/ are you excited about... 39 posts and 0 image replies omitted. Click to view.
So /sci/ are you excited about fully immersive virtual reality? When do you think it would become a reality, and what would you want to do in a virtual world?
What's the best way to... 11 posts and 0 image replies omitted. Click to view.
What's the best way to keep track of all of humanity's various space probes? Where they are, what they're doing, what they've accomplished, what they intend to do, etc?
Hi /sci/ I know there´s... 1 posts and 0 image replies omitted. Click to view.
Hi /sci/ I know there´s advice board, but I think sci gathers the kind of people I need an advice from. So here’s the thing… I am 26, jobless, college dropout(comp sci) and all that shit, currently trying to put my life together. Now with my resume only kind of job I can obtain is the usual dead end job like mall security or working at Mac Donald. I am not an idiot (or at least for the sake of this discussion let’s pretend I am not) I just fucked up, now I have some IT skills I can code in Java, C++, know OOP principles, know about UML, let’s say IT knowledge of graduate with bachelor degree(atleast from uni in my city). Local IT firms don’t necessarily insist on having uni degree so that kinda works for me, what’s bad that I have no project/portfolio, so when I went to interview few weeks back It was done by this HR chick and it went along the way do you know that? Yes. Do you know that? Yes. Do you know python? Well I done some things in it in college but I wouldn’t call myself an expert. After the farewell and we’ll get back at you I received an email with “Thank you but no thank you”. Mind you interview done by HR so that chick knew about programming probably as much as my grandma. I learn my lesson from it that no one will waste a time to check if you rly know your stuff unless you have a degree or some done projects. I figured that currently best way for me to have some “donned” things to my resume is android/iOS development, I am not aiming for $, just make some apps to demonstrate that I am not completely full of shit and I don’t spend my days jacking off(to get me through 1 st round of interview).
If you're going to read... 21 posts and 0 image replies omitted. Click to view.
If you're going to read this, note that it's waste of your tie. A blog post that I wanted to tell someone, but don't have to courage or the heart to actually tell anyone I know. Don't tell me you haven't been warned, and if you're gonna say something, sage goes in the e-mail field. I always looked at the picture posted as a motivation, and it certainly helped many times. When I didn't feel like studying, but had to, I would look at it, read it, feel guilty of the conditions I actually posses, that are actually given to me, the happy life and all, and start studying. And the motivation would be high for a while, for a day, two or a week, then I'd go back to procrastinating. I just had a realization. It isn't about motivation, it's as straightforward as it seems to be. If I was gonna study, I was gonna study. If I were meant to be highly educated, I wouldn't need to be pushed into it. I wouldn't need to research procrastination every month to know how to fight it, I wouldn't need constant flow of motivational quotes or remembering that I love science. I would know all of that all the time. Newton wasn't beaten into discovery, nor was he ever persuaded into it. No great mind ever was. So, I'm gonna drop out, and do whatever average people do, and watch popsci shows and Vsauce because apparently, that's the only form of science information I enjoy. Thank you for reading /sci/, hope you got something of this post too!
Can someone please... 10 posts and 0 image replies omitted. Click to view.
Can someone please conceptually explain Stokes' Theorem to me? Specifically, I am not too sure what I am finding when I am looking for dS in the surface integral portion of the equation. Is it the vector that is tangential to my surface at all points? Or is it normal to the surface at all points? Or am I completely wrong? Thanks gentlemen.
What are your opinions about... 7 posts and 0 image replies omitted. Click to view.
What are your opinions about this?
Show em if you got em. 0 posts and 0 image replies omitted. Click to view.
Show em if you got em.
Hi /sci/I have a friend who... 62 posts and 0 image replies omitted. Click to view.
Hi /sci/ I have a friend who claims he can, at time, read auras, he says he has this physic ability. I, for all intents and purposes believe he genuinely does see's these 'auras' of colours around people. Now what im wondering is what would be the scientific reason for this? what would be his diagnosis? Has research been done into this? inb4 hes crazy etc etc
>could easily do extremely... 5 posts and 0 image replies omitted. Click to view.
>could easily do extremely well in a field like Economics, political science, accounting, or History >instead physics major because passion >despite having too low IQ to do second year calculus >would love to minor is CS or applied maths Does it get better?
Why do we start with nothing,... 2 posts and 0 image replies omitted. Click to view.
Why do we start with nothing, why not infinity?
I stupidly left this tripod in... 3 posts and 0 image replies omitted. Click to view.
I stupidly left this tripod in the damp, leaky trunk of my car for a few weeks and the aluminum parts got corroded in some parts, causing the paint to flake off and forming this crystallized, soapy residue. What is this stuff?
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