Back | Go to board
Board: /sci/
"/sci/ - Science & Math" is 4chan's board for the discussion of science and math.
Get your asses over here.
If yes, mainly for what reason?
talks maths
SHORT
Quick Disproof of the Riemann Hypothesis
https://vixra.org/abs/1906.0236
MEDIUM
Zeros of the Riemann Zeta Function Within the Critical Strip and Off the Critical Line
https://vixra.org/abs/1912.0030
LONG
Fractional Distance: The Topology of the Real Number Line with Applications to the Riemann Hypothesis
https://vixra.org/abs/1906.0237
OLD
On The Riemann Zeta Function
https://vixra.org/abs/1703.0073
So here's the question, if you had a chat box with yourself from a parallel universe with almost no difference to our own, could you ever truly communicate and if so how would you break the chain of same messages?
what is this?
>what is /sqt/ for
Questions regarding math and science, plus appropriate advice requests.
>where do I go for other SFW questions and requests?
>>>/wsr/ , >>>/g/sqt , >>>/diy/sqt , >>>/adv/ , etc.
>books?
libgen.is (warn me if the link breaks)
https://stitz-zeager.com/
>articles?
sci-hub (you'll have to google for a link, unfortunately)
>book recs?
https://sites.google.com/site/scienceandmathguide/
https://4chan-science.fandom.com/wiki//sci/_Wiki
>how do I post math symbols?
https://i.imgur.com/vPAp2YD.png (embed)
>a google search didn't return anything, is there anything else I should try before asking the question here?
https://scholar.google.com/
>where do I look up if the question has already been asked here?
https://warosu.org/sci/
https://boards.fireden.net/sci/
>how do I optimize an image losslessly?
https://trimage.org/
https://pnggauntlet.com/
Question asking tips and tricks:
>attach an image
>look up the Tex guide beforehand
>if you've made a mistake that doesn't actually affect the question, don't reply to yourself correcting it. Anons looking for people to help usually assume that questions with replies have already been answered, more so if it has two or three replies
>ask anonymously
>check the Latex with the Tex button on the posting box
>if someone replies to your question with a shitpost, ignore it
Resources:
Good charts: https://imgur.com/a/kAiPAJx
Shitty charts: https://imgur.com/a/1Q1LIMk (Post any that I've missed.)
Verbitsky: https://imgur.com/a/QgEw4XN
Graphing: https://www.desmos.com/
Calc solver: https://www.wolframalpha.com/
Tables, properties, material selection:
https://www.engineeringtoolbox.com/
http://www.matweb.com/
>Subsequent editions significantly dumbed down the quality of the book, and removes a lot of interesting topics so that CSlets can easily understand it.
CSfaggots still struggle with the shitty rehashed version of this book, yet it is absolutely dumbed down to their level. Just check their table of fucking contents and see the difference.
Why has CS been significantly dumbed down this days?
Say, is there a speed so close to 60mph, that I could not physically go any faster without actually reaching 60mph?
https://www.universetoday.com/146342/study-of-200000-galaxies-reveals-the-entire-universe-might-have-been-spinning-in-one-direction-early-on/
Why aren't we pulling up on this fool?
Russian? German? French?
Pic unrelated
Women getting wet for Chads seem pretty intuitive. Best genes possible. What's the biological reason for bad boys though? Why do women have this dark craving for evil men they just can't resist? What evolutionary pressures led women to lust after rapists and murderers?
I feel stressed even after the stressful situation has resolved.
>Get mocked and laugh at for trying
>Get told that this isn't for me
>Put effort yet fail
Am I a brainlet or what sci?
To be able to do this you gotta have a lot of control over your mind because a single tought will distract you and the immage you created will be lost
Am I doing right exercing in this way?
What I mean by logical limit is this. Consider temperature and the Kelvin scale. Zero Kelvin is the temperature at which matter is completely void of motion and therefore, energy (except for that of its mass?), so going lower than this makes no sense; you can't have less than zero energy.
Is it the same for the speed of light? As I understand it, the speed of light is a proportionality constant between space and time. Relativity tells us that with enough energy, you can technically shorten your travel time arbitrarily, no matter the distance, by approaching the speed of light. But the fact is, to a motionless observer, you can never go faster than the speed of light. Information can never travel between two points in space faster than the speed of light.
So which is it, is the speed of light a logical or fundamental limit? If it is a fundamental limit, doesn't that imply something serious about the universe? Why is the speed the speed of light precisely what it is? Why not 1.1c or 1.254c? Obviously the value changes based on the physical units, but the fact is that it has a definite value. Doesn't this imply that certain choices were made and that the universe was designed?
Here is a formal proof:
Most people are right handed
Most people are straight
Most most right handed people must be straight
Since IQ is hereditary and right handedness is also hereditary, we therefore conclude that most people that are right handed and have an IQ are also straight
Create a chart that's axes are perpendicular finite and positive.
Connect the endpoints of the axes with straight line.
The result is a right triangle of IQ distribution
Any criticism of this proof is welcome. If I missed something let me know.
In the movie 2001 a Space Odyssey there is gravity in the spaceship because it is rotating around itself.
What I don't understand is how can something "rotate" in space?
Rotation requires a frame of reference, but what if space was completely empty?
How can you tell that the spaceship is rotating if there's nothing around it?
imagine some game of snooker with perfectly elastic balls and no friction. one ball hits two, transfers all its energy and they go off in different directions. now measuring one of the moving balls tells you about the other, because they're linked by the initial impact and energy needs to be conserved.
i must be missing something because entanglement doesn't seem very spooky at all.
https://www.youtube.com/watch?v=xBKRuI2zHp0:
tldr: He claims that while reality would be a single world, ultra-high-tech games indistuinguishable from reality would allow as many realistic worlds as you desire - you could say for instance that half of the whole "real world" population is playing, and that could be a few billion simulated worlds running at any time. Since such simulations seem to be possible in a near future, an insignificant time lapse from new from evolutionalary point of view (compare how we evolved since pong, then imagine it 10 thousand years from now), it seems plausible that they will exist. So in that scenario, thinking of all perceivable realities, the chances you're perceiving the real world would be 1 in a few billion.
I'd add that its unlikely that since the whole history of mankind, and of life in general, has been pure hell until recently (since living in the wilderness with no food and no shelter, hunted by predators, until not having anesthetics recently) how likely it is that you was born at the point of history where there is maximal material comfort while perfectly-realistic simulations are not ready, but seem right on the corner (that would be the ideal 'game set' to allow immersion - since its almost the lastest you can be so that "we are in a simulation" guess is not THAT good.
And how would you conciliate that with the fact that your life sucks.
If we specifically we look at the ones where the first number is a prime we find an interesting pattern. Let's take a look at the first few!
(3,4,5)
(5,12,13)
(7,24,25)
(11,60,61)
It seems as though if the first number is a prime, then the last number is just one more than the middle one!
Prove this.
Y/N, lads?
Google only shows up PC bullshit and ddg is a mess to search on.
Pretty much all smart people and psychologists I've talked too seem to agree that changing sex is mental but I'd like too see concrete data.
There's also the 40% suicide rate and the trans regret but I can't find the papers on that.
Also general discussion about the topic, please keep it more on /Sci and less on /pol
The go to explanation for the cause, seems to be that space is expanding.
Are there any other explanations for the observed cosmic red shift, aside from space expansion?
To learn about Kirchoff's law and exactly why it's invalid, see these lectures:
> What is Kirchoff's Law? Blackbody and Cavity Radiation!
https://www.youtube.com/watch?v=DodFojdkSIA
> Is Kirchhoff's Law True? The Experiment!
https://www.youtube.com/watch?v=YQnTPRDT03U
> Kirchhoff's Law - The Second Experiment!
https://www.youtube.com/watch?v=LE7fZ565DWc
> Kirchhoff's Law, Max Planck, and the Carbon Particle!
https://www.youtube.com/watch?v=m-poyIY7pfQ
> Kirchhoff's Law vs the 2nd Law: The "Boxes Side-by-Side Experiment"!
https://www.youtube.com/watch?v=rsQXu5qLkgg
> Kirchhoff's Law vs the 0th, 1st, and 2nd Laws: The "Box in a Box" Experiment!
https://www.youtube.com/watch?v=5cS1mfZ2XYY
> Linking Planck's Equation with the Physical World!
https://www.youtube.com/watch?v=_w8PJZvnLGI
> The Big Bang, Photons, & The Microwave Background!
https://www.youtube.com/watch?v=NHOo3elX5-c
> History of Kirchhoff's Law - Presentation at German Physical Society (Munich)
https://www.youtube.com/watch?v=83JU6enMBS0
https://forms.gle/DfMirYDbQuq94oTJ7
pic unrelated
2 "If it is much after three, it is not after three."
If so, why is the first one something a normal person might say but the second one nonsensical?
Will it remain a pipe dream or something a young man like me (22) can actually expect to witness within his life time?
Something you enjoy saying, and proud to be part of or have knowledge of, academically-speaking.
I'll start:
>commutative
Feel better immediately
Is my doctor a wizard shaman? I didn’t even take medication.
Has there been any very eccentric fellows?
this isn't a case of him being a meme or something, because literally everyone around him treated him like some fucking demi god
I have experience with fischer esterification of secondary alcohols w/ carboxylic acids, and experience making low MW alkyl halides from alcohols, but this will be my first home grignard reaction.
I am aware of the carcinogenity of bromoethane, so I'm doing this outside with a respirator, heavy duty fan.
>one is a greek letter, another is distinguished by solely by case
was it autism?
does somebody have an idea of how to do it?
I'm just entertaining a hypothetical, there's no real need to try dissuade me from it because I am just curious.
>trillions of dollars
>world-wide movements
>all to find a renewable alternative to fossil fuels
>some bumbling youtuber dumps a bottle of ever clear into his tank and it miraculously works
Is renewable energy a scam?
https://youtu.be/ysXIl0TlVHM
What will happen if the earth gets too heavy?
Secondly, I'm still struggling with concepts from years ago. Geometry for example. Khan academy asked me to find the maximum area of an isosceles triangle. I had no idea where to start, largely because I don't know what an isosceles triangle is.
In essence I'm asking: Would it be best for me to go back and study my high school fundamentals first and then move on to calculus when I'm ready or should I keep going and hope to pick those old skills up along the way?
What's russia's secret?
They consider a mildly different dinosaur hip from over 80mya an entirely separate genus despite knowing nothing about its reproductive capability.
![1586808391928[1]](https://i.4cdn.org/sci/1591328786224s.jpg)
*how might one go about this, starting with a small city, without getting arrested?
https://files.catbox.moe/6vxlly.webm
пoд этим видeo https://www.youtube.com/watch?time_continue=1&v=zb1PKpT_u38&feature=emb_logo have a comment
If you look at the date of the video you can understand that a week after recording the video there was a powerful earthquake in Japan https://en.wikipedia.org/wiki/2011_T%C5%8Dhoku_earthquake_and_tsunami
Do you think a coincidence or not?
There is no logical argument against this
Where does this sort of thing end? I wonder how much of SJW activism can be explained by its practitioners being failures in academia/arts/whatever, and on some level realizing they lack what it takes to make a meaningful contribution, so they resort to political advocacy in order to satisfy their need for status and attention.
can you get expelled from a place for wearing one of these ?
Less disease/insects
Unlimited power due to currents
Unlimited source of purifiable water
Good source of food if you suppliment it with farming
Less pollution
Other than the obvious starting, engineering and maintenance costs (salt water corrodes like a bitch) am I missing something there? Seems like a huge untapped resource to me.
Supposedly Grandi's series proves that 0=1/2 and people use that as proof that the universe can come out of nothing. Here's why that is false: The problem is within the sequence itself, supposedly
S=1-1+1-1+1-1..... repeat forever
Grandi makes the assumption that this S sequence equals 0 but that's not the case when you realize that S can also be written as
S=0+0+0+0+0.....
Which can in turn be written as
S=0*∞
0*∞ does not equal 0, It's undefined
The universe is teeming with intelligent lifeforms. They also max out at the "upper limit" of technology, which is slightly more advanced than where humans are now.
Human's are going to hit the wall within the next 5 to 15 years.
Pick related is a famous S-Curve. Singularity people and others like it believe that we're just now at the foot of the curve, and we're about to hit a great exponential increase up. But they are wrong. The past 150 years of the industrial revolution WAS the exponential increase when you look at human civilization as a whole and we are already curving off at the top of the graph. This is it.
Some anons will seethe and cope at this post. Just wait for 10 years and you will be forced to accept the reality of the Universe.
.... and 10. You didn't do it, right?
Even in the worst nuclear winter our planet is still 1 billion times preferable to mars colonization.
So can someone explain to me how this isn't all a massive PR stunt?
https://pdfs.semanticscholar.org/537a/c9c6066f20039491a72b361a4009a3d5623f.pdf
>But there is another possibility after all: self-determinacy.
>The CTMU has a meta-Darwinian message: the universe evolves by hological self-replication and
self-selection. Furthermore, because the universe is natural, its self-selection amounts to a
cosmic form of natural selection. But by the nature of this selection process, it also bears
description as intelligent self-design (the universe is “intelligent” because this is precisely what it
must be in order to solve the problem of self-selection, the master-problem in terms of which lesser problems are necessarily formulated). This is unsurprising, for intelligence itself is a natural phenomenon that could never have emerged in humans and animals were it not already a latent property of the medium of emergence. An object does not displace its medium, but
embodies it and thus serves as an expression of its underlying syntactic properties. What is far more surprising, and far more disappointing, is the ideological conflict to which this has led. It seems that one group likes the term “intelligent” but is indifferent or hostile to the term “natural”, while the other likes “natural” but abhors “intelligent”. In some strange way, the whole controversy seems to hinge on terminology.
Consider a few simple equations, like F=ma or V=IR for a moment. What is the "right" way to interpret the casual relationship between the quantities in these equations?
Take V=IR for example. Does a voltage difference across a conductor cause a current to flow, or does current flowing through a conductor cause a voltage difference? In the case of F=ma, one could ask if a force causes an acceleration or vice versa.
Does it even make sense to talk about one quantity "causing" the other? Or is it that neither quantity "causes" the other, and instead voltage, current and resistance are perfectly correlated in a manner such that V always equals IR (for an ohmic conductor).
More generally, do the physical quantities in any given equation actually influence one another, or are they merely perfectly correlated (for an exact equation)?
Personally I prefer to think that they are just correlated, as a causal relationship implies one quantity "happened" first, which doesn't make a whole lot of sense. But I am open to alternate interpretations.
https://www.youtube.com/watch?v=Fob3Qvwmo0A
If zero, nothing can move because wave function of the universe doesn't change.
I assume someone has designed something like this cause it's a pretty obvious idea. Where is it? Why is it bad?
![maxresdefault[1]](https://i.4cdn.org/sci/1591305649541s.jpg)
starting with OC
Last thread >>11686822
Thread for the discussion of allopathic evidence-based medicine. We discuss research, offer advice (the best one is to see your family physician), make fun of premeds and shitpost.
>What's the best spec for research?
Path, onc, anesthesia, etc.
>Best spec lifestyle wise?
Psych, ophtho, derm, rads
>Is x too old for med?
No
So, when were you during the science wars time?
what is your opinion?
are you a scientific realist and postmodernist critic? and why?
Can we ever express something 100% accurate?
If not is it our inferior perception of reality to blame? Or is it that reality is not objective ?
We can only do 7 conscious processes IE attention at one time.
https://www.youtube.com/watch?v=F0_HymMFEMQ
Is Covid wave 2 inevitable now?
>be machine learning PhD student London UK
>develop model that has lots of commercial interest
>success.jpg
>uni decides to spin out idea as a company
>asks me what salary I would want to work on my model
>wat do???
>what salary would be normal for someone like me?
I love science.
![sagan1[1]](https://i.4cdn.org/sci/1591199011323s.jpg)
>we are the way the universe experiences itself
It's like 'pick one' amirite
I am asking here because /tv/ only likes to talk about cunny
>What school?
Pic related.
Schizos not welcome in this thread.
https://www.sciencedirect.com/science/article/pii/S0016328719303507#bib0335
>With the future climate instability already locked into the system by recent human activity we will most likely return to the climate volatility of the Pleistocene. Climate change will adversely affect agriculture in a number of ways including sea level rise, higher average temperatures, heat extremes, changes in rainfall patterns, and the loss of pollinators. Less understood changes include the effects on agricultural pests, soil composition, and the growth response of crops to rising CO2 levels.
Is it over lads?
>Show that if a set S has cardinality m, where m is a positive integer, then there is a one-to-one correspondence between S and the set {1,2,3,...,m}.
By this do they mean that there exists a function [math] f [/math] such that [math] f: S \rightarrow {1,2,3,...,m} [/math] is a bijection?
Because surely not all functions from S to {1,2,3,...,m} will be bijections because all the domain elements can just map to a single element for example f(x) = 1 for all values of x in S...
Am I understanding this correctly?
I feel like the bar for white or Asian students is so high that it's almost impossible to get in. Unless you're the valedictorian of a highly prestigious high school or you are genuine prodigy, excellent academics still won't get you accepted. For students from very rich families it's a different story. You can hire people who know how to game the system. You can get SAT tutors and hire professionals to write your essay. Your family can donate large sums to the school. Your can do progressive sounding extracurriculars like "I'm a VP at a charity(that my dad owns)" or "I teach students in undeserved inner city schools how to [insert something esoteric and somewhat academic]". If someone in your family are a celebrity or politician you are way more likely to get in. If you are associated with a tragedy you are more likely to get in(see David Hogg). Legacy students have an unfair and absurd advantage for being accepted.
Ultimately, what this means is that after of seats are taken by affirmative action and the children from wealthy families, it is impossible for whites or Asians from normal families to get in unless they are a one in a million prodigy. Bill Gates and Mark Zuckerberg were basically prodigies, however their families', although not rich, were still upper class. What upsets me most is that admissions will be way more impressed by some BS progressive sounding extracurricular rather than, for example, you worked a part time job to help your family. Rant over.
>"...He told me of how he had tried to be killed, but his comrades had fallen around him and each time, by some miracle, he had lived. The ones with the photographs in their wallets, the frightened ones, and the ones with dreams of the future, they were the ones who got killed, he said. Only those who didn't care, got the Iron Crosses. Now he was going to the front, to his unit if he could reach it, otherwise anywhere, anywhere, did I hear, where he would be allowed to die."
P: 0 other user on this page