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/sci/ Science & Math

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Most viewed threads in this category

81 more posts in this thread. [Missing image file: ]
Why are most American scientists totally against superdeterminism, is it because it renders what their great nation stands for null and void? Excuse my condescension but a true scientist would never believe in random events. tl;dr Do you guys truely believe in free will?
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Does taking a lot of drugs (weed, ecstasy etc.) make you worse at maths? This has been bothering me a lot lately and can't find a conclusive answer.

IB Mathematics HL

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Fuck, it feels so good to finally be done with this and not have to meet up with buddies to study for three hours a day anymore. Pure pain, but I regret nothing.
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How does one pronounce "PNAS"?

stupid questions general

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New stupid questions general thread. Last stupid questions general thread got pruned early. Older stupid questions general still archive here for now >>7612327
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What's some good inspiring biographies about mathematicians?
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The Black Hole "S5 0014+813" has a solar mass of 40000000000 Suns you are 10000000000 KM from the Center You must travel 3.43760 times the speed of light to escape its gravity from your current position. even at such a generous distance consequently, Understanding Newtons Third Law, we know: >"For every action, there is an equal and opposite reaction." thus we know The Black Hole can pull us in faster than the speed of light. 3.43760 times faster. and this speed will increase as we get closer and closer. Einstein BTFO.
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Is Stephen Hawking a meme scientist?
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Can you visualized higher-dimensional objects, /sci/?


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I've heard of tokomaks and ITER but I never heard of a stellarator or the fact that a large prototype was constructed till now. Can someone briefly explain how this differs from the tokomak in ITER and what the Wendelstein-7X will accomplish for fusion research?

Opiate addiction

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Why don't patients get addicted to opiates like heroin used in hospitals as pain relievers the same way a regular user would?
53 more posts in this thread. [Missing image file: ]
What are some scientific misconceptions you had as a child?
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What is, objectively, the most complex level of mathematics you can do?
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What are the pitfalls when arguing Godel's incompleteness theorems to support agnosticism?
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Can intelligence be increased?
19 more posts in this thread. [Missing image file: ]
>Me loser >Video games all day >Quit video games >Computer all day >Finally get shit together >Math and physics alllll day But I have been having wierd dreams like i'm literally making up physics problems in my head and solving them I my "sleep" like I never do that during the day don't even really know how I do it. Also before I go to sleep every night I go over some basic algebra rules figuring out what I can and can't do with numbers by replacing variables with simple 2's and 4's. Wtf is going on with me. >Mfw I have gone insane

/GlobbleWobble/: Antarctica Growing Edition

88 more posts in this thread. [Missing image file: ]
CLIMATE CHANGERS JUST CAN'T KEEP GETTING AWAY WITH IT >https://www.nasa.gov/feature/goddard/nasa-study-mass-gains-of-antarctic-ice-sheet-greater-than-losses/ NASA: Antarctica is growing, not shrinking! NASA has BTFOd the Intergovernmental Panel on Climate Change's 2013 report saying that Antarctica is melting. Using altimeters on ESA's European Remote Sensing satellites for the period 1992-2001, and on NASA's Ice, Cloud and land Elevation Satellite for 2003-08, NASA has worked out that Antarctica was experiencing a net gain of 112bn tons of ice/year during the 1992-2001 period, and 82bn tons/year for 2003-08. The West Antarctic fringes are indeed losing ice; but this is more than made up for by the gains in the interior Western Antarctic and the Eastern Antarctic, which are experiencing an increase in the thickness of the ice of about 0.7in/year. Ice is lost via melting to the ocean, and is gained via snowfall. But in another twist, NASA have shown that the period under study has actually experienced less snowfall than a few decades prior. NASA's calculations show that the effect of the Antarctic is actually to be decreasing sea-levels by 0.23mm/year. This is problematic, because the IPCC reckoned that sea-levels are rising 0.27mm/year due to Antarctic ice melting. So either the IPCC have got their sea-levels wrong, of the sea-level rises are coming from another source. Where were you when climate changers got BTFO AGAIN? How much longer can the facade last? Think of how many influential names will be ruined. >haha, dad, you're actually telling me that you believed in global warming? I'm so embarrassed! My own father, a religious nutter!
4 more posts in this thread. [Missing image file: ]
what if two objects moving at 2/3 the speed of light at the opposite directions? in each other's perspectives, the other is moving at 4/3 faster than the speed of light

Algebraic Optimization

7 more posts in this thread. [Missing image file: ]
Ok /sci/ I came up with this stupid idea that I will now shitpost here b/c why not. It is an attempt to optimize a system of variables using methods of algebraic topology and algebraic geometry. Lets say we have a system of 4 variables, [math]\alpha ,\beta ,\gamma ,\delta [/math] and we want to find the optimal configuration of them. We can represent these configurations by graph-like things, that look like this [math]\alpha \to \beta \to \gamma \to \delta [/math]. For a system of 4 variables there are 24 different possible configurations in this style. I am not going to go through all of them b/c that is too much effort. To show what I am thinking I will take these three different configurations: [math]{\gamma _5}: = \gamma \to \delta \to \alpha \to \beta [/math] [math]{\delta _5}: = \delta \to \gamma \to \alpha \to \beta [/math] [math]{\delta _6}: = \delta \to \gamma \to \beta \to \alpha [/math] and invent some way to multiply these things such that... the multiplication of these configurations are commutative, i.e. [math]{\left[ {{\gamma _5},{\delta _5}} \right]_ * } = 0[/math] opposing elements of the configurations cancel, i.e. [math]\left( {\alpha \to \beta } \right) * \left( {\beta \to \alpha } \right) = 0[/math]. So now we can take the product of the three example configurations I gave, and we end up with a thing looking like this: [math]{\gamma _5} * {\delta _5} * {\delta _6} = \begin{array}{*{20}{c}} \alpha & \to &\beta \\ \uparrow & \nwarrow & \uparrow \\ \delta & \to &\gamma \end{array}[/math] Now if we set it so that the variables must always be at the same corners of these rectangular product diagrams, we can just replace them with generic nodes and get a graph that looks like the fundamental polygon of a 2-torus, [math]{T^2}[/math]. This means we can identity this specific configuration of the 4 variables, with the topology [math]{T^2}[/math].

Maths PhD

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I'm currently studying maths (integrated Masters) at a pretty solid UK uni, I'm only a first year, but I want to get a PhD and then get into research. Is there anything I should know? Or any Maths PhDs on /sci/? It'd be interesting to start a discussion about how it is and where you're working now. Are you in research? Actually, how hard is it to get a in research once you've got your PhD?

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