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Archived threads in /sci/ - Science & Math - 270. page

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Realistically speaking wouldn't it be better if we were the first technological civilization in the galaxy?

It means we could colonize everything without worrying about conflicts with aliens.

Why are so many people so obsessed about not being alone in space?
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I think people are just trying to keep nihilism at bay. People are obsessed about many such things relating to, I suppose, a greater purpose.
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>>9059468
That is a possibility. Someone has to be first. Though, statistically, there'd be many "firsts" happening at the same time.

The main problem is that space is fucking huge. Much larger than what most people can even comprehend. It is filled with all manner of debris between the starts and planets. Far more debris than most people can comprehend. The second problem is that attenuation is a real bitch. Any signal sent out will eventually be rendered, not only incomprehensible, but also render so well camouflaged, weak, and distorted that it won't appear to be a signal at all. Then then you have all that debris between you and "them" further soaking up the signal's power. Hell, we may be awash in such signals every day and have no clue. It is much like, using your hand, slapping out a message in the water on one side of the Pacific ocean and hoping someone else on the other side is watching the ripples for the message.

The only way you'd be able to communicate or detect would be using an entire star as your signal device. Literally building a giant mechanism on one side that will block/unblock the star/sun to send out binary/Morse code type communications. That's the very least you need do and still have your signal detectable to everyone on that side of the star. That'd be like detonating an underground nuke to make waves on one side of the ocean so someone on the other side could detect the waves.
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>>9059795
>Though, statistically, there'd be many "firsts" happening at the same time.

There is absolutely no basis for that statement -- we have no idea how likely life is to arise on a given planet, nor how likely it is that life will wind up with intelligence and thence with technology.

If the chances of both of those things are decent, yeah, technological civilizations may be springing up all over the place at once. But if either or both is low enough, somebody may well have been alone at first -- and it might be us. Shit, if both are low enough, we may be the only one ever.

Figuring probabilities with no numbers to work with is not something you can really do.

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before she passed away?
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>>9059401
>woman
>greatest anything
you've got to be joking, anon
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>>9059404
seriously answer the question for real please
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not even remotely

she worked in a very narrow academic corner of math and the problems she solved weren't known much beyond it

People will say Serre, or on a more popular level, le russian mama boy, or Wiles if they are memesters or Tao is they are hardcore memesters

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what math should I study to become witten?
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You just wanted an excuse to post this picture

Don't bullshit me.
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>>9059333
calculus, time and time again in my projects I find myself reducing everything to a calculus problem
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>>9059333
Euclidean elements

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What is the /sci/ consensus on SUPREME MATHEMATICS?
3 posts and 1 images submitted.
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What the fuck is this absolute faggotry
>>
WE

Can anyone be good at Pure Mathematics?
1 posts and 1 images submitted.
No replies in the DB for this post!

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Why write vector fields on manifolds as
directional differential operators? Sure, you can do it, its an obvious isomorphism, but why not say that a vector field is just a map from the manifold to the tangent bundle where the image of every point is an element of the corresponding tangent space. That seems more natural, I dunno, I think differential geometry has crunched my brain.
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>>9059180
>Why write vector fields on manifolds as
>directional differential operators?
To scare away brainlets.
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*blocks your path integral*
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We say both. It's very easy to compute things once calculus is involved though. Some identities or theorems are best learned by direct computation, then proving that your computation was independent of coordinate choice, rather than some abstract logic approach.
One of those methods is better (the second one) but one is more helpful as a learning procedure. For example, in my undergrad math/physics class we took the time to exactly calculate things like the curl of a gradient of some function in a series of different coordinates. It was very instructive at the time to see how calculus could be used to prove important identities. But years later, when learning some differential forms and Hodge theory and what-not, I learned how all of that can be written down without using calculus at all. It's more enlightening, but I couldn't have learned it that way from the start.

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What incentive do developing countries have to not use fossil fuels to industrialize?
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foreign subsidies
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>>9059165
Lack of a local source of fossil fuels or lack of funds among local industrialists to make (proper) use of them
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to prevent America finding out they have them

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Not a big fan of programation
for reverse engineering
can someone explain what this piece of python code is likely to do ?
https://pastebin.com/UE4RQYTB


thank.
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>>9059063
What are you trying to do?
This looks like it's supposed to automate taking screenshots of websites, and then send the screenshots over some kind of channel.
It also looks like whoever wrote it wasn't a very good programmer.
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>>9059063
best I can do for you is read out the function names and assume they do what they say they do.

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the stance on sleep seems so ambiguous. why is it needed? what is being "recharged"? it makes no sense. there should be a way to recover from mental fatigue while still being conscious. is there any real need for sleep or can it be circumvented with proper measures?
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>>9059019
brain cells are too complex for you to understand
we are nowhere near to understand the brain in it's entirety
if you want to know you should read up on molecular biology and physics. then you could draw your own conclusions

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Based on the poll of the last few days I made some babby analysis of the data. Here are the results of what /sci/ is doing (or not doing) for a living.

Starting with an overview, the vast majority of this board's users is in education.

Continued.
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>>9059012
This is /sci/ dude. Did you do any regression analysis on the data? Did you have any models you wanted to falsify? No one cares about the exposition of a histogram.
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Next, we take a look at the users in education. Most people are pursuing the Bachelor degree, whereas the second largest group consists of the students who pursue their Master's degree. The smaller groups consist of doctorands and high school students. The latter is the smallest of all groups in education on /sci/.
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>>9059018
>more users on /sci/ have PHD's then haven't gone to college
bullshit.

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How do I turn my nihilistic thoughts into actual actions and behavior?
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>>9058969
wrestle me u jabroni
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>>9058969
realize that the world ends with you, thus you are your own personal god
then become a god that's worth worshipping, unless you're satisfied worshipping a fat, lazy, under-educated cunt

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Is there a name for this rounded square wave? What would the formula be?
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>>9058911
thats just a squashed sine wave
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>>9058925
That's just my shitty mouse work, it's supposed to basically be a square wave with semicircles at the peak and crest
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>>9058911
Write it out as a piece wise function, take Fourier transform, and voila

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Could I get a math/stats bsc and be a consultant?
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>>9058888
Nice get.
Don't forget to take some programming courses (C++, R, Python will do). Apply for a MSc in fintech/related and you're good to go.

How much longer until moores law reaches the next paradigm and we have 3d chips?
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Heat rules the universe. Heat commands us, binds us, we are but the frontier between what heat is and what heat will b-

Ah, screw it. Probably not happening, not unless we figure out superconduction at reasonable temperatures, better 3D printing and the necessary architecture. 10 years at least, likely 20 or more.
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>>9058852
We already have 3D chips.
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What the fuck is a 3D chip. As far as I'm aware we already stack transistors vertically to maximize space.

Principles of Mathematical Analysis,[4] Real and Complex Analysis,[5] and Functional Analysis[6] (informally referred to by students as "Baby Rudin", "Papa Rudin", and "Grandpa Rudin", respectively).

https://en.wikipedia.org/wiki/Walter_Rudin
> Baby
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problem, brainlet?
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>>9058846
>https://en.wikipedia.org/wiki/Walter_Rudin
Too brainlet for real real analysis?

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