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/sci/ Science & Math

Threads added between 2013/12/25 and 2014/01/01

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Most viewed threads in this category

5 more posts in this thread. [Missing image file: 1327765599009.gif]
Bacteriology question. Can viruses, that cause stomach problems, transmit through cake? I had two pieces of Napoleon cake that came from an "infected" family.

moving sands

4 more posts in this thread. [Missing image file: 1386191085836.jpg]
hey sci! I was wondering, how is moving sands made?
27 more posts in this thread. [Missing image file: Chill-Out-I-got-this-300x300.jpg]
I've seen way too many retarded 0.999... = 1 trolls on /sci/ over the last weeks. With this thread I'm gonna end the debate. >0.999.... >1 >first digit 0 >first digit 1 0 and 1 are not the same number. Got it, faggots? Good, now stop discussing this shit and go back to talking about actual science and math.
1 more posts in this thread. [Missing image file: singularity.png]
is this a good chart that represents the singularity? do you have anything that might be better /sci/?
90 more posts in this thread. [Missing image file: 1384112410705.jpg]
I did the IQ test on http://www.iqtest.dk/ and I find it a bit flawed, simply because some people are not "good" at picking up differences. Like the ones in this test. But I think this goes to show, that people are more "gifted" in certain areas, vs others. The test scored me at 98, but I know for sure I am a lot higher than that, I have a higher aptitude than what this gives me credit for. Based off my own aptitude and comparing it with others who were or are similar, my IQ range is between 160-180. Most people I know, even those that hold Ph.D's have commented on much I can understand subjects that took them years and I was able to understand it, without their education. If I am as dumb as this thing tells me, than everyone around me must be "retarded".
2 more posts in this thread. [Missing image file: 1383687703155.gif]
Hi /sci/, I neglected to take chemistry in high school and want to start learning it. What's a good general introductory text book? I'd prefer rigour/depth over simplicity.

Scientific aesthetics

1 more posts in this thread. [Missing image file: xjUrH2R.png]
Can we get a thread on the appreciation of immaterial activities? I'll start with my favourite block of text: "An aesthetic environment may also serve a restorative function in fostering recovery from mental fatigue. Research has shown that restorative experiences, such as clearing one's head and reflecting on one's life and priorities, may help combat Directed Attention Fatigue. As investigated by attention restoration theory, natural environments, such as forests, mountain landscapes or beaches, appear to be particularly effective for restoring attention, perhaps because they contain a vast amount of diverse, relatively weak stimuli, thus inciting the mind to wander freely while relaxing its strict focus.[10]" -Wikipedia
6 more posts in this thread. [Missing image file: chris-davis-broken-bat.jpg]
>df(x)/d(1/x) Can someone explain to me why people write shit like this? It's not only an abuse of notation, but it's horribly ambiguous. Pic related, it's what terrible use of Leibniz' notation makes me want to do.
14 more posts in this thread. [Missing image file: display_matrix.png]
So I'm tinkering around in Matlab and I was wondering if anyone knew how to delete specific elements from a matrix/table ? I can't just randomly delete them because then the matrix is not "neat".
90 more posts in this thread. [Missing image file: branes.png]
most difficult math course? assuming some top level topology or maybe multivariable calc? maybe abstract algebra?
3 more posts in this thread. [Missing image file: aaad24bc-00df-48cb-b943-4(...).png]
Hey guys, I need some input on this idea that I came up with... it'd be a massive project that'll let people re-live moments in history. It'll be in certain decades throughout history, set periods, etc. The goal is to have this thing be as popular with all demographics. want old baby boomers to experience this, your 12 year old sister, sole ghetto back guy in Detroit, everybody. The problem is that I have no idea how this could be realized. A highly detailed video game wouldn't work out, since not everybody plays video games, and the very idea of it being a video game simulator would turn everybody off. It needs to be something where it'll be as common as opening Google Maps... but what the fuck could it be? I'd imagine it'd be available on your PC and your smartphone, but I just don't know what. I mean, this is like trying to come up with the next big thing, you know. It won't be easy. Whay do you guys think? Work with history and pop culture professors, as well as gather all top tier history books, etc
1 more posts in this thread. [Missing image file: 1381113113333.jpg]
When labs have a bunch of numbers they put on everything, "control numbers" in order to comply with safety standards, or quality control standards etc. What is the name of the quality control standard on the federal level, and safety standard? Like how theres "HIPPA" for medical confidentiality, what is this called? (Pic unrelated)
3 more posts in this thread. [Missing image file: 1 Jan 14 3 latest_2048_0304.jpg]
We have a very sundere sun for new years today.
3 more posts in this thread. [Missing image file: 11.jpg]
What do you guys know about the best way to prep for a community college assessment test? Trying to get back into the game here thanks
8 more posts in this thread. [Missing image file: TimeCube_com_newpicture_E(...).jpg]
Us at the Gene Ray foundation are confident that 2014 will be the year of the Time Cube, when "nature's harmonic simultaneous 4-day time cube" is finally introduced and taught in educational institutions around the globe.
5 more posts in this thread. [Missing image file: 1371668039994.jpg]
How well did /sci/ do in their a levels? Do you regret knowing a few more marks could of gotten you into a better uni?

The memetic singularity just occurred

5 more posts in this thread. [Missing image file: 170px-ENG_COA_Newton.svg.png]
It's all downhill from here bros :) http://www.livestream.com/SecondLifeNews/video?clipId=pla_91ec4f66-b6b8-452b-a51d-b9444ec744b8&utm_source=lslibrary&utm_medium=ui-thumb This thread is now about memetics and/or cultural evolution and/or creativity in a scientific context.
8 more posts in this thread. [Missing image file: tobacco-moisac-univwiscvi(...).jpg]
How come bacteriophages have quite large genomes with dozens of genes despite targeting some of the simplest creatures, while viruses targeting plants and animals can work with less than 5 genes?

free energy?

10 more posts in this thread. [Missing image file: free energy.png]
so can someone explain to me how this would not work? i know it wouldnt work cuz if it did, someone else would have already thought of it. i just need to know why it doesnt work. >video referenced in pic related http://www.youtube.com/watch?v=VTbFfEEE_qU
42 more posts in this thread. [Missing image file: 1320011250538.jpg]
tell me how do you improve your concentration when studying? >inb4 adderal

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