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/sci/ Science & Math

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Most viewed threads in this category

A proof for infinite sets that contain more elements than others?

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So, /sci/, I want you guys to consider this. 1. There exists sets X and Y 2. There exists a number x, x is an element of X{R|1<x<2} 4. There exists a number y, y is an element of Y and is an element of {R|1<=y<=2} 5. X is a subset of Y 6. ?X implies Y AND x implies y 7. ? 1 and 2X,1 and 2 Y 8. 1 and 2 are NOT an element of X, and ARE an element of Y AND 1 and 2 are elements of Z 10. Set Y contains exactly two more elements than set X. 11. ?Y>X What do you think, /sci/? Is it proof of different levels of infinity, or that infinity plus two is not infinity? Am I retarded? Could my proof be revised? Am I doing something wrong? I talked about this with my calculus prof. Also, how do I do this using the LaTeX? If anyone could do that, that'd be nice. But, my reasoning in plain words: >Think of two sets >In the first set, are all real numbers greater than 1, less than 2. >In the second, are all real numbers from 1 to two. >The second set has every element that A has. >The second set has two more elements, 1 and 2. >Therefore the second set has more elements.
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Hello /sci/, I have a confession to make. I am really disappointed about my intelligence. I am a double grad student (computer science and math) who wants so much to be someone out of the curve. At first I was self aware of my limitations and went ok with being average, until I decided I wanted to be a college professor. Then I changed my whole mindset, started up on math course, started studying to git gud and step out of average zone. The problem is that I'm 9 months into this and already demotivated. I have been getting average grades (even though I noticed a step up from my old performance) and so have colleagues whom don't study half of what I do. On top of that, there are colleagues of mine who doesn't even take notes during classes and score good grades consistently. How will I ever get to be a great researcher/teacher when there are competitors who are much better than I. I already attempted to mimic their way of learning (taking no notes and focusing on class solely) but it just doesn't work for me. I forget details in a matter of weeks. Help me guys. What do you guys do to be excelent? I want to be recognized. I know there are quite a few of other doublegrads out here, so give me your view, how do you cope with the giant amount of classes and information every day? Thank you in advance.
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"We must continue to go into space for humanity. We won’t survive another 1,000 years without escaping our fragile planet," - Stephen Hawking So, /sci/, where the hell we going? Honestly, I just wanted an excuse to talk about space colonization. Is it possible? How soon?
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explain to me how picking up girls can't be studied in a scientific way using the scientific method?

Celestial determinants of success in research

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>Using the ????2 test, we found a general association between zodiac sign and the likelihood of having received the Nobel Prize in Medicine and Physiology (p = 0.042). In particular, the odds of having won a Nobel Prize were increased for people born under the sign of Gemini (odds ratio [OR] 1.90, 95% confidence interval [CI] 1.12–3.24, p = 0.017). Conversely, the odds of having won a Nobel Prize were decreased for those born under Leo (OR 0.35, 95% CI 0.16–0.82, p = 0.011). So what is your Zodiac sign /sci/?
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http://www.esa.int/Our_Activities/Space_Science/Gaia/Gaia_s_billion-star_map_hints_at_treasures_to_come >On its way to assembling the most detailed 3D map ever made of our Milky Way galaxy, Gaia has pinned down the precise position on the sky and the brightness of 1142 million stars. What does /sci/ think of Gaia's new galactic map? Significant astronomical achievement? I think it's beautiful to look at if nothing else. High-res version was too big to post, so here: http://www.esa.int/spaceinimages/Images/2016/09/Gaia_s_first_sky_map
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Isn't it nice?


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What is the best field of physics? What is better paid? What it is easier to find work? And why the answer to all these questions is astrophysics
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Intelligent life is probably so rare in the cosmos and requires so many accidents stacked on top of each other for it to evolve that the nearest intelligent aliens are outside the observable universe. Right?
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>>>/qa/668450 >>>/qa/670512 Hiro said that we can make a constructive thread discussing our issues with /sci/ that mods will not delete or set to autosage. Will /sci/ ever see the return of math & science related captcha questions? Will mods & Janitors better regulate the posting of popsci, health, and >>>/x/ related threads?

Hyperbolic space

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Mind boggling math: https://www.youtube.com/watch?v=jfSTwqmrQDc http://playing.hypernom.com/hypTiling
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What if you ate a tiny cube with no nutritional value, except 20,000,000 calories? Would you just slowy gain fat over time? Would you just die? C'mon /sci/

Evolution Just Got Harder to Defend

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How can Darwinists still defend the theory of evolution? There is mounting evidence in the fossil record that it is bunk. >A new fossil discovery makes it even tougher for Darwinists to explain the origin of life. >There’s an old story about a chemist, a physicist, and an economist stranded on a desert island with nothing to eat but a can of soup. Puzzling over how to open the can, the chemist says, “Let’s heat the can until it swells and bursts from the buildup of gases.” “No, no,” says the physicist, “let’s throw it off that cliff with just enough kinetic energy to split it open on the rocks below.” The economist, after thinking a moment says, “Assume a can opener.” >There’s more than one trade that deals in assumptions. The way Darwinists approach the origin of life is a lot like that economist’s idea for opening the can. The Darwinian mechanism of mutation and natural selection explains everything about life, we’re told—except how it began. “Assume a self-replicating cell containing information in the form of genetic code,” Darwinists are forced to say. Well, fine. But where did that little miracle come from? >A new discovery makes explaining even that first cell tougher still. Fossils unearthed by Australian scientists in Greenland may be the oldest traces of life ever discovered. A team from the University of Wollongong recently published their findings in the journal “Nature,” describing a series of structures called “stromatolites” that emerged from receding ice. http://cnsnews.com/commentary/eric-metaxas/evolution-just-got-harder-defend
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>Young adults born with Down syndrome pursue their passions while defying society's expectations. How do they do it?
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God is not in this world, he merely wrote the engine our universe runs on.
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Is [math]\frac{1}{\infty}>0[/math]?
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Is there anything worse than when your professor has an accent you can't understand? Fucking Bangladeshis
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Who was the absolute worst mathematician of his century ?
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I'm left handed currently. If I cut off my hands and put my right hand on my left arm and my left hand on my right arm, assuming all function returned normally, which hand would I write with?
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How long until we see this guy in math books?

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