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/sci/ Science & Math

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Most viewed threads in this category

2 more posts in this thread. [Missing image file: ]
Nancy aka mathbff, ok anons who has the goods on Nancy? Personal life, personal photos, personal relationships. Don't act like you're not enamored of her fellow neckbeards. Tell all! pic related
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Is this the life story of every one on /sci/ >Top of class in high school >Peers, teachers and parents hail you as a genius >Chose the hardest most advanced STEM course at the best university in the country >You will be the greatest, the next Feynmann >This will make up for your poor social skills and virginity >Once you're there you're #452 in ability >Classes are dull formalizations of the same old classical mechanics and calculus you did in high school >You aren't even able to keep up with this >You are now a virgin AND dumb >All your childhood ideas for warp drives and space elevators get dismissed as impossible >Realize you will barely pass your course >Realize you will likely never contribute anything >Realize if you did it would be a 0.001% more efficient rocket engine or something equally mundane >Realize you're now bald, fat, on a low wage with all your dreams crushed. >An hero

Medical Resources Online

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What are good resources online to learn medicine and medical science? Anyone know of MDs getting into research without a PhD or MS? Interested in bench and clinical research, but public health stuff is boring as hell.
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What do you guys think about the mathematics behind No Man's Sky?
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>dx >dx/dy/dz/dt >derivative

Cantor was wrong.

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The natural numbers and reals have the same cardinality, and I can show you why Cantor was wrong. Let's consider the real numbers in base 2, and let's also consider [math] S = \{ \\ 1.00000..., \\ 1.01111..., \\ 0.10011..., \\ 0.00000..., \\ ... \\ \}[/math]. Now in base 2, there's only one option for how to change your digit for the diagonalization argument. The digit 0 must become 1 and the digit 1 must become 0. Otherwise, we couldn't guarantee each infinite binary string differs from the new one we'll create. However, let's looks at the created binary string. [math] S = \{ \\ \textbf{1}.00000..., \\ 1. \textbf{0}1111..., \\ 0.1\textbf{0}011..., \\ 0.00\textbf{0}00..., \\ ... \\ \}[/math] Once you switch each digit, you're resulting string will be 0.111..., but in base 2, we have that 0.111... = 1.000... for that very same reason that in base 10, we have that 0.999... = 1.000..., and thus we have failed to reach a contradiction since 1.000... is a member of S. In fact, if you rigorously go through Cantor's argument in any base, you'll have this same failure to reach a contradiction as is required, and this happens due to how the reals are closed under taking limits, which ensures their cardinality is the same as that of the naturals.
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>sit in on a signal processing course >professor says Dirac Delta "function"

Sci-Hub / Library Genesis general #2

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Sci-Hub https://sci-hub.io/ Library Genesis https://sites.google.com/site/themetalibrary/library-genesis http://gen.lib.rus.ec/ http://libgen.io/ xD Reddit https://m.reddit.com/r/Scholar/comments/3bs1rm/meta_the_libgenscihub_thread_howtos_updates_and/ Torrents to 52mill+ science articles http://libgen.io/scimag/repository_torrent_notforall/ Example of journal dump http://libgen.io/scimag/journaltable.php?journalid=1457 pic related Biblioteca Vasconcelos Need help? Questions? Comments? miscellaneous etc.

Does Wildberger belive in sqrt(2)

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He does not believe in pi, but does he allow sqrt(2) and 1/3 even though we cannot write them down entirely in decimal form ?

Favorite Paradoxes

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What are your favorite paradoxes, /sci/? Mathematical expressions of the paradoxes and possible solutions to the paradoxes are obviously welcome. I'll start with a basic one: >"Everything I say is a lie. I am lying." Am I a liar or not?
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Dont you think its strange that we are like, animals.....walking around doing stuff....there only appears to be more variety in our species because we wear clothing.
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>tfw told to follow my passion and majored in maths instead of doing an engineering degree
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Is dietary cholesterol bad? I'm hearing conflicting information on this.

SpaceX (Will it blow?)

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SpaceX rocket launch in about 3:45 hours, they are attempting a landing again 20:43:00 UTC 4:43:00PM Eastern 1:43:00PM Pacific >CRS-8 will be the first CRS mission to the ISS since the ill-fated CRS-7, and stowed in Dragon's trunk will be BEAM; a small Bigelow inflatable module to be attached to the station. The first stage, provided the barge is go to support a landing, will attempt to land downrange on OCISLY Streams: [NASA TV] http://nasatv-lh.akamaihd.net/i/NASA_101@319270/master.m3u8 [SpaceX Technical] https://www.youtube.com/watch?v=sh8V0COrrzE [SpaceX Full/Hosted] https://www.youtube.com/watch?v=7pUAydjne5M Mods sticky this
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PLEASE HELP!!! This problem is obviously simply solved, but I cannot find any sauces to aid me. You're my last hope... I will be making some N2O by thermally decomposing Ammonium Nitrate. Does anybody have any idea on how I could purify the N2O? It needs to be food grade purity, or slightly less so.
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>tfw you are going to pass the main class with an A but fail the lab...
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Why aren't there any additive/chemical free cigarettes easily available? Pic related wasn't honest about additives/chemicals and it's clear that the additives and chemicals are what make cigarettes so harmful to health.
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why do social scientist claim gender is a social construct if those genders come from the biological diferences between the social function of a male versus a female? Saying it's cultural doesn't explain the brain diferences in percepcion and other diferences between the sexes, such as males having better spacial reasoning skills, an entirelly logical thinking not influenced by the hornomal cycle, higher IQ on average, a focus on building and understanding systems rather than caring and nurturing others. These diferences are real and explain the no girls in STEM meme and how they choose on average roles that had to deal with emotional aspects and motherhood roles. I mean, it's pretty obvious male gender as those social scientist claim, is based on all human cultures in all the history, on the male biological roles, such as being the hunter and the one that has to compete to provide the food, among also other related roles such as having to compete with other males for females and having to man up and no show emotion. These are biological reasons, not cultural ones. They're real, and females have the same biological bases that form the cultural gender (if the social construct role idea is true) that is female. It's literally pseudoscience to say that gender is a social construct when all human cultures in history shared the same dichotomy between what a male can do and a female can. Even in feminists countries such as norway, the same dichotomy still exist, as women prefer and are seen by society as the soft gender who seeks to nurture and help others while males are not emotional beings (that need to be strong) that build stuff, work on hard jobs and have to be strong. Even the trans people still fall even moreso on the traditional roles, and I'm sure the real cases of trans people (not the ones where the person is simply confused) their brains have the oposite gender structure.
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Can someone explain to me intuitively what exactly is going on when we integrate? I understand that it's used for finding the areas under graphs, and I know the method, but what am I actually computing? With differentiation, we're finding the gradient at specific points using a line which has a difference of 0 between our point and another arbitrary point. I don't, however, understand what integration actually is.
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Do you respect philosophy as a science or not? Why?

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