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Archived threads in /sci/ - Science & Math - 578. page


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How can you determine [math]P^{k}\textbf{x}[/math], where [math]P[/math] is a stochastic matrix and [math]\textbf{x}[/math] a stochastic vector, if [math]P[/math] doesn't have an eigenbasis for [math]\mathbb{R}^{n}[/math]?
19 posts and 1 images submitted.
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>>7699140
Start with x. Multiply by P. Multiply the result by P. Repeat until you have done k multiplications.
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>>7699168
Come on now
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>>7699140
Is P nilpotent?

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Is type theory a meme?
34 posts and 7 images submitted.
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>>7699061
Formal systems in general are memes
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>>7699061
Per-Martin really likes \subset for implication lol.

Also univalence is the biggest meme mathematics at the moment imo.
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>>7699423
It's [math]\supset[/math] actually.

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Black holes aren't real.


Prove me wrong.
33 posts and 5 images submitted.
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>>7698205

Your mom.
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>>7698205

That's not how this works. You made a claim, thus it's up to you to provide evidence to back it up.

> B-but it's impossible to prove a negative!

True, that's why you shouldn't have phrased it such a retarded fashion.
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>>7699414
If you try to claim they're wrong, you yourself have made a claim that must be backed, though.

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Is theoretical physics basically a meme science now?

>wasted decades promoting superstring theory as fact
>wasting even more cycles on shoehorning gravity into QM
>"dark" matter and energy fudge figures being paraded as factual before evidence
>totally ignores that QM breaks causality despite experimental evidence predicted by the maths
>totally ignores that QM breaks FTL despite experimental evidence (entanglement) and practical application of the same (quantum encryption)
>totally ignores that conscious observation is required for reality to exist, despite this being obvious since Schrodinger's equations and the double-slit experiment

Face it, theoretical physics is a fucking joke.
167 posts and 10 images submitted.
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>>7697921
What should they be saying/doing in your opinion anon?
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>conscious observation
Jesus Christ, you've got to do better than that on this board.
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>>7697934

>despite Einstein, Bohr, Schrodinger and others instantly noting that the otherwise flawless QM model implies it

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What kind of pets does /sci/ have?
79 posts and 17 images submitted.
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Spiders, spiders are allies.
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>>7696848
a girlfriend
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>>7696848
wow op is that calc 2? you must be a seriously intelligent dude

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https://smartech.gatech.edu/handle/1853/53595

>Georgia Tech
>master thesis
>about being a /fit/ sissy
meme university
171 posts and 31 images submitted.
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>>7696483
I gotta post this on /fit/
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>Last, I wish to thank /fit/, while I don’t know you individually, I
consider you my best friends, forever mirin’ brah’s.

uppermost kek

I wonder if whoever has to determine this paper's worth is dying on the inside or well on the other side and actively encouraging this type of bullshit.
>>
Internet is culture too. It makes sense to study it.

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What is /sci/'s opinion on common core?
100 posts and 11 images submitted.
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>>7696477
>People still post that fake image

It's a good idea, only retards don't like it.
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>>7696481
It's a good idea in principle, very poorly executed.
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>>7696477
It's got the potential to make a nicely educated generation capable of free thinking beyond calculating things "the normal way".
But it's taught like shit.

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I've been arguing with a friend of mine about nuclear power. I've been saying how most of the waste produced can be taken care of, and we're only left with a small amount of long lasting radioisotopes. Also that it's a better alternative to dump CO2 into the atmosphere. My friend on the other hand thinks it's bad because radiation is bad and some radioisotopes last for thousands of years. He thinks the solution is in solar and other "green" tech. I'd like to hear other's thoughts on nuclear power.
333 posts and 18 images submitted.
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I am so for nuclear power. I feel like the majority of the population doesn't understand what it is. Even after trying to explain it to my family they still are skeptical. There is no need to. You will get more radiation from the sun than you will get from a nuclear power plant. Unless you're a complete idiot and go touch the uranium.

Overall, it's just widely misunderstood because everybody has this mentality that anything with "nuclear" is bad.
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It's always getting safer.
People don't seem to be aware of the potential of Nuclear Power, and how even more amazing it could be if we kept up with applied research and design.
Design especially.
It's sad to see we're forced to use less modern designs because tax payers have been lead to believe that 80's and 90's tech is the pinnacle of Nuclear Power safety.
>>
OP here, it's also sad since my friend is in stem.

ITT: We post pics of our library/book collection
others rate
102 posts and 20 images submitted.
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>>7695722
2/10

Consider suicide.
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>>7695722
>>>/lit/
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>>7695722
That is a really shitty library
>not having math and physics everywhere
>not having Murakami, Diaz, Wallace, other modern classics
>not having LOTR, other classic fantasy/sci-fi
>no asiimov, bradbury
painful to write

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is he right /sci/? is the STEM job shortage a myth? Am i really fucked if I get a stem degree?
112 posts and 14 images submitted.
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>>7691896
Only the T in STEM is actually good.
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>>7691900
And the T stands for EE and CpE
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>>7691896
Yes he's right. The job STEM grads are getting since the start of the "shortage" are in banking, IT, Coding, and Insurance. Jobs you only need a BS/A and experience. Cops make more than Engineers in major cities. In San Francisco, Cops make on average 95,000 with an extra 20,000 in compensation/benefits. STEM shortage was a myth pushed by Mark Zuckerberg and Silicon Valley elites to get more HB-1 slaves.. I mean workers. These workers are watering down wages for engineers. Ask any engineer today if they feel secure in their jobs. We're at the point in engineering where jobs are hard to find or pay shit. Just like programming was gutted 15 years ago with the outsourcing. I believe the IEEE has a study on the myth. So does a professor of engineering at UNC-Chapel hill.

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215 posts and 14 images submitted.
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>>7690434
Throw in certain topics and /sci/ shits itself so I'd say no. They're great at their given topic, akin to other boards. Possibly more than most other boards.
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>>7690434
/lit/ is better in my opinion.
And I say this as someone in STEM, whose home board is /sci/.

/sci/ is likely a close second though, but is probably beaten by /diy/
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>>7690451
STEM means nothing.
If it means something, it's that you've fallen for the meme.
Your opinion is 3/4 of a normal persons opinion.

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Maths porn
106 posts and 28 images submitted.
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>>7690175
Looks awfully like physics to me bro
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>math porn
>posts tedious calculation
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>>7690179

Stop being so facetious

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Hey guys. Ran into some flat earthers online today and now feel inspired to make a video proving the earth is round. Need some help brain storming what are some experiments I can do while being a normal everyday college student.
307 posts and 32 images submitted.
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>>7681661
look at the moon
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more specific please. I need something that can get through the hear of a conspiracy nut
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>>7681667
Nothing.

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Why the fuck is there so much controversy about this?
229 posts and 46 images submitted.
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Uh, about what?
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>>7678035
Perhaps OP doesn't understand that the moon is lit by sunlight.
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Generally speaking the Earth-Moon system is where the bad stuff happens that makes people mad.

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If you put extremely cold water in ice will it cool it down more or will it be less cold?
17 posts and 1 images submitted.
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Dumb meme poster
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>>7699737
Nah I'm serious about this
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>>7699733
Your Mom doesn't have a thermometer in the kitchen?

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