Archived threads in /sci/ - Science & Math - 508. page
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What's the point of it?
>>7752930
More logical
Eliminates the need for parentheses.
>>7752950
/thread
How fucking rad is this
https://youtube.com/watch?v=kyuY7F3cvNU
Pretty fucking rad if you ask me. What does the increasing um counter mean?
Neat but how is this any better than the stuff Lichtman's lab is doing? What I'd like to see is real-time imaging in vivo so we can capture the dynamics of neuronal networks as they're functioning, not more of this structural/connectomics stuff.
cellular automata is real motherfucker
https://www.youtube.com/watch?v=C2vgICfQawE
Would you say that education in the US at the university level is worse or better than in countries like France, Germany, or the UK?
Assuming you are at a top public school like Berkeley, UCLA, Michigan, Texas, etc. what is better or worse?
For example, engineers in France take a lot more math than engineers in the US. Also medicine is an undergraduate degree in UK which seems not to have the dreaded O-chem?
If you are working with people educated in other countries do you feel US students are better or worse prepared?
Keep in mind that this thread is inherently biased
https://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
It depends man. Theres two ukrainian guys in my physics department who went to some university in kyiv. Crushing the average, by far the most brilliant guys I know, and as far as I know ukraine isn't really known for their university program.
I'd say on average though (talking about physics only because I don't know any other fields), most people who went to an american university for an undergrad tend to do worse at the grad level. As far as I know its probably because american universities push a lot more general education classes for stem majors than...
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Swiss Poly >= German Elite Unis > US Elite Unis > Chinese Elite Unis > Russian Elite Unis > French Elite Unis > German > Swiss > US > French
What the fuck is wrong with the weather? some people talk about global warming, I just read an article about El niƱo.
anyway, this is one strange winter.
Rainbow isn't a fucking type of weather.
Every fucking year people say there's something strange about the winter.
>hurr durr this winter is so cold it's the coldest one since 2005
>hurr durr this winter is so warm it's the warmest winter since 2008
>>7752856
dude, I picked a random imagen from google.
Turns out the party's over, you can no longer download 10 year old books from springer. What did you get in your haul /sci/?
Don't care everything they have is on libgen anyway. That said I recommend pic related
>>7752693
A 10+ year old book on Quantum Computing? Wouldn't this be horribly outdated?
>>7752701
The maths and physics is still the same. But if you've got a better more recent alternative I'm all ears.
Oi /sci/. Why the hell is a black hole so mysterious? Isn't it composed of 3D matter that piled up so densely that it even sucks in light. I know that gravity is still mysterious. But is it only mysterious because people don't see what's inside?
>>7752606
I don't think its really "Mysterious" yeah, you can't see inside it because light can't escape. What seems odd to me is this:
Lets say a star with a mass 100x the sun collapses into a black hole. It still has that same amount of mass, any planets orbiting that star should still orbit it normally, yet light can't escape? How could the light escape when the star was still a star? I might be missing something or not taking into account something
>>7752659
The radius of the star was too big
>>7752659
Since all that mass is concentrated into a singularity, rather than spread out over the size of a ball with a radius 92 times that of our sun.
The gravity gradient becomes so steep that the spacetime curvature becomes infinite.
>smart but lazy
was there ever a truer meme?
>>7752391
>truer
Lol sure. Keep being that delusional. I thought I was the same until I got IQ tested at 95 and realized I was actually dumb and lazy.
Smart people generally aren't lazy.
I unironically believe I'm smart but lazy, knowing I could better but I don't care makes me feel better about my failures.
Why does the sum of all natural numbers equal -1/12?
From what I've read is that it is a 'reduced version' of the actual answer, which is infinity.
The reduced version is apparently useful in physics e.g. string theory. I know approximations must be made when doing science but this one gets me uneasy. Maybe the expression should be changed to 'ā -1/12' or am I being autistic about this?
>>7752334
'=' denotes any equivalence relation. people don't use weird squiggly symbols generally. it's no approximation, but "analytic continuation" of a function. It's like saying the geometric series is equal to 1/(1-x) and then continuating it so that the geometric series at 2 is equal to -1 (where it is, in reality, infinity)
The 'natural' answer is that it approaches infinity. More specifically infinity to the second power. So lets say you have 1 + 2 + 3 ... + x. When you have really large values in x, the sum is approximately x^2. There's some series that you can expand it into, don't know if I have the picture, but when you do it you'll get x^2 - 1/12 + something/x + something else/x^2 ...
So, when people say that -1/12 is the answer, where they get that from is ignoring not just the infinitely small parts, but also the infinitely large parts, and only looking at that one constant, -1/12.
The most concise way to put it is -1/12 is the acceptable answer in higher levels of mathmatics. You can do more if you can reduce infinite series into constants than you can if you can only say things like 'yep, that's infinity'
>>7752339
Shut the fuck up, nothing you said is correct
Why bother pretending that you can contribute anything to science or mathematics when people like Terence Tao exist, who can do your life's work in a few weeks? To pretend otherwise is extreme narcissism. I put my recycling in the correct bins but to pretend that have any meaningful effect on the environment when the USA and China smog the place up would be deluded.
Also take in to account three factors: Smart people breeding with each other, increasing world population, and increasing parts of the world that have access to higher education. The number of Terence...
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Yes, but there will be one Tao better than the rest of the Tao's.
And that will be me : )
Why not just learn to enjoy being ordinary?
>that feel when low IQ
Does a bigger head size make you smarter, /sci/ ?
Recently I stumbled onto this article and I wonder.
http://gnosticwarrior.com/head-size-matters.html
How does head size effect the way you think, your intelligence, emotions etc..
your head size just tells you you didn't take enough boobie nutrients when you where a kid
Q.E.D :/
Skull size/shape is correlated with hormone levels (gh, testosterone, etc.).
The way your brain is wired makes a bigger difference according to that one thing I heard 5 years ago.
What are the downsides to a career in Astronomy?
Loneliness.
Jobs are a bit harder to get, that's about it.
I highly recommend it, though. Just do outstandingly well in it, do a lot of internships for free, make a good resume. You probably won't earn as much, but if you're interested in it, that doesn't matter. I'd strive for a job at some observatory on Antarctica, Scandinavia or Chile
>>7752081
Astrology is great.
/sci/ I think I might be stupid. I've had the thought lingering in my mind for a long time. How can I know if I'm stupid? I have a problem with speaking that gives me a strong suspicion that it's true. I have difficulty with communicating complex ideas. I have to take it one idea at a time. All my concentration is going toward one idea and my mind is just completely consumed with how to articulate it. All my mental functions are basically just focused on one thing which is articulation. When I see other people speak it seems they can hold multiple ideas in their...
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Thinking before speaking is not stupidity.
>seems they can hold multiple ideas in their head simultaneously and are processing what they'll say next while they're speaking.
They can't and they aren't. They may have a vague notion of whatever it may be they are talking about floating in their mind, but you can be sure that they are not structuring their answer in any way.
I just took an online IQ test here
http://iqtest.dk/main.swf
Here's my results
>>7752038
Smoke weed or take psychedelic drugs but in huge quantities - you will face your inner fears and if you face them directly - you'll get rid of them forever. Just don't believe anything else you think you understand while high because they're delusions.
What makes an island an island?
Why is Australia considered a continent but Greenland isn't?
Is it by size or just arbitrary?
who cares
>>7752033
Tectonic plates.
Why do you not even give a fuck? You should be banned for not trying.
>>7752033
I thought Australia was part of Oceania along with like 14 other countries. I know nothing about geography though, so 99% sure I'm wrong.
What is root of minus four multiplied by root of minus 9?
There is this faggot teacher at my uni that keeps bugging us with this question.
From my point, in elementary school we would say, it does not exists as number, in high school it would be something like 2i * 3i = -6 and at uni it is still unidentified since we dont define "i" as square root of minus 1 but as i^2 = -1.
So what would be the most logical and simplified explanation of this?
OP
...I am doing math degree and I begin to feel embarrassed about this and similar problem..
Also, getting disappointed at narrow education and interest my teachers have. fucking hell.
Begin, thread about usage and examples in science mathematics has.
Fucking english
>>7752011
That's how most complex analysis texts treat it.
Just like how you can't make zero a denominator because it has no multiplicative inverse in the field axioms.
Can someone knowledgeable explain why physicists prefer to do away with locality rather than realism when it comes to Bell's Theorem? What is actually meant by 'realism' anyway?
>>7751976
Abandoning "realism" would essentially mean abandoning science. "Realism" is the principle that something real exists - that there exist things with an existence independent of our own minds and representation schemes.
From Wikipedia:
The physicist's Realism is the claim that the world is in some sense mind-independent: that even if the results of a possible measurement do not pre-exist the act of measurement, that does not require that they are the creation of the observer (contrary...
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It makes a lot more sense to abandon locality than realism, favoring the pragmatical world than the immediate one. The world does not revolve around you.
https://en.wikipedia.org/wiki/Construct_%28philosophy%29
