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"/sci/ - Science & Math" is 4chan's board for the discussion of science and math.
>what is /sqt/ for?
Questions regarding math and science, plus related advice requests.
>where do I go for other questions and (advice) requests?
>>>/wsr/ >>>/g/sqt >>>/diy/sqt >>>/adv/ etc.
>how do I post math symbols (Latex)?
https://rentry.co/sci-latex-v1
>a plain google search didn't return anything, is there anything else I should try before asking the question here?
https://scholar.google.com/
>where can I look up if the question has already been asked here?
https://archived.moe/sci/
https://boards.fireden.net/sci/
>how do I optimize an image losslessly?
https://trimage.org/
https://pnggauntlet.com/
>where can I get:
>books?
https://spoon.wiki/Books
https://stitz-zeager.com/
https://openstax.org/
>articles?
sci-hub.st
>book recs?
https://sites.google.com/site/scienceandmathguide/
https://4chan-science.fandom.com/wiki//sci/_Wiki
http://math.ucr.edu/home/baez/physics/Administrivia/booklist.html
>carreer advice?
https://sciencecareergeneral.neocities.org/
>help with calculus?
https://spoon.wiki/WolframAlpha
>charts?
https://imgur.com/a/pHfMGwE
https://imgur.com/a/ZZDVNk1
>tables, properties and material selection?
https://www.engineeringtoolbox.com/
http://www.matweb.com/
General advice for asking questions here:
>attach an image (animal images are best. Grab them from >>>/an/)
>avoid replying to yourself
>ask anonymously
>remember to check the Latex with the Tex button on the posting box
>if someone replies to your question with a shitpost, ignore it
>avoid arguing with Yukarifag
>do not tell us you came from whatever the fuck board, /pol/ in particular
>do not mention how [other place] didn't answer your question so you're reposting it here
>if you need to ask for clarification fifteen times in a row, try to make the sequence easy to read through
old thread >>13303748
We discuss research, DO NOT offer advice (just fucking go see your doctor) make fun of gunner premeds and shitpost. Please keep vaccination/clamping/vitamin K etc. out of this thread and start your own because it takes a lot of space.
>inb4 not science
>inb4 poor amerimutts wanting medical advice
Previous: >>13312792
Falcon 9 Transporter-2 and a Soyuz scheduled to launch 4 minutes apart on Friday
So my question is this: is there a book or a resource that explains modern mathematics from the beginning (meaning from the foundations) and without assuming any sneaky outside knowledge?
Is Bourbaki the only project similar to that?
the shadow on the left is pointing in the wrong direction
The thing I want to figure out is "the probability a woman is trans given she is 5'10" or taller". So A = the probability a given woman is trans, B = the probability a given woman is 5'10" or taller.
Assuming that trans women follow the same height distribution as other AMAB people (which might be changing with more people having the chance for early transition), as per this calculator: https://dqydj.com/height-percentile-calculator-for-men-and-women/ the probability that a woman will be 5'10" or higher given that she's trans is 0.4 given that 5'10" is 60th percentile for male height distribution in the US. So P(B | A) = 0.4
The most common estimate I've heard for how many people are trans is about 1 in 300. So P(A) = 0.00333...
For women in general (cis women being a sufficiently overwhelming majority thereof that trans women won't affect the average substantially), 5'10" is 99th percentile, so P(B) = 0.01
(0.4*0.00333...)/0.01 = 0.1333... or 13.33%. which is 40 times the base rate. Unless there's something wrong with my math it seems like I'm screwed, because a probability 40 times higher than base rate is enough to promote a hypothesis to prominence. What's your view? Should I have posted this on /lgbt/ instead?
I'm trying to do some at home rat surgery stuff and need anesthetic. Tried it with CO2 but I killed the rat.
For 40$ I can apply with the DPH to be a "Controlled Substance Practioner" because on their site it says "Scientific Investigator", which I would definitely consider myself!
But I feel like they would just say no because I'm 18 and don't even have a degree. And I feel like they'd get mad at me. I want to reach out to local vets about it but I feel like they would also get mad at me.
What do I do? :(
How is this mass child abuse going through?
Young healthy humans who still have their whole life in front of them are being abused as guinea pigs for big pharma.
In when Fragmentation is the Excerpt
For what discretion would find as atonement what we can unify is as what would acclaim to say that declaration is so accelerative that would perceiving docturn a predicament that where standing the fluenced obligation emerges that there is a satire of re-claiming entice for what would be the saturation of the inclination in vocation, in this there is in theory a bread of sorts and how you turn what sorts into how what is the essence of what acclaims to be the set itself of what were entailed by that there is a dissertation for its excalibur that refutes it quite normally
And it got me thinking, could tidal heating provide enough heat for an earth like object to have liqued water? If there woupd be live woupd vision be usseles? Or would life adopt a seismic way of seeing (like toph from avatar) and when the rogue planet woupd be ejected is it possible that it could even maintain/snag multiple moons as well?
I am waiting for your input(pic partially unrelated, depends on answers)
Can you kindly explain what are ring and set of numbers?
What is the usecase and why numbers are separated? Thank you! >-<
There is a negative correlation between height and longevity which crosses race and gender barriers seamlessly and it benefits the manlets bigtime. people around 5' tall have the longest life expectancies, everyone else loses a substantial amount of time for every inch taller, about 10 months per inch. So there is a tradeoff between physical size and longevity and I'm wondering if there is a similar relationship between height and IQ because IQ and longevity also correlate.
So a negative height to IQ correlation would serve to confirm the speculated IQ-longevity correlation and the speculated height-longevity correlation, both observations seem to have decent data backing them up.
inb4 butthurt talltards saying no relationship
Currently third year in med school hating all patient interactions and documentation, but love learning medicine, pharmacology, physiology, etc etc...
Is the science behind it stimulating? Or is it a brainlet specialty
how do i refute this
Welcome to STEM Career General!
This thread exists to posit questions regarding careers associated to STEM.
> Discussion on academia based career progression
> Discussion on penetrating industry from academia
> Or anything in relation to STEM employment or development within STEM academia!
Resources for protecting yourself from academic marxists:
>https://www.thefire.org/ (US)
>https://www.jccf.ca/ (Canada)
Information resource:
>https://sciencecareergeneral.neocities.org/
>*The author is seeking additional input to diversify the content into containing all STEM fields (currently only physics is present)
No anons have answered your question? Perhaps try posting it here:
>https://academia.stackexchange.com/
NOTE: Any useful resources relayed in this thread will be included in future /scg/ threads.
Previous: >>13217828
https://www.online-python.com/apWuHxms8j
Why π = 4: http://milesmathis.com/pi2.html
pic is screenshot from their website this morning, right is same website, moments ago.
wtf
If A happens, there's a 5/9 probability of B happening.
What is the probability of B happening?
Can they be scaled small and still provide an impressive power output?
We live in a period where counting and mental arithmetics are seem as unnecessary. Of course it is seem that way, people can't do it, how could they see its benefits? I am here to tell you about them
>The science of numbers and the art of calculation depend upon pure intelligence in the attainment of pure truth.
>Indeed, it most certainly does that.
>Have you noticed, too, how people with a talent for calculation are generally quick at every other kind of knowledge; and how training in it makes a slow mind quicker than it would otherwise have been?
>I have.
>Also, it would not be easy to find many branches of study that require more effort from the learner. For all these reasons we cannot do without this form of training.
Plato, The Republic, Book VII
Intelligence is the most essential human atribute, it consists on the capacity of aprehending the truth, that is, recognizing something is true
https://archived.moe/lit/thread/16639317/
Counting and mental arithmetics not only train important mental abilities like speed of reasoning, attention, memory, but also, intelligence, as every time you count you are exercising your intelligence as you are aprehending a truth so simple it cannot be denied.
Everyone that completes the "training" described in the first few chapters of the book in the picture will be prepared for a great career in Mathematics or any other field that require intelligence.
Start slowly, count the least of things, count 1 bird, 2 birds flying. Observe people, count them, add one by one in your mind. You will have a lot of fun and you will surprise yourself with you capabilities.
Here are the links:
https://www.youtube.com/watch?v=kNXPe1u81pA&t=1s
https://arxiv.org/abs/2106.01715
>This fact is tested numerically by reproducing the first thirty one zeros of the Riemann zeta function from our spectral side, and estimate the probability of having obtained this agreement at random, as a very small number whose first fifty decimal places are all zero. The theoretical concept which emerges is that of zeta cycle and our main result establishes its relation with the critical zeros of the Riemann zeta function and with the spectral realization of these zeros obtained by the first author.
literally all thats required is 630 gigatons of nitrous oxide and the oxygen supersaturated ice crust (caused by billions of years of radiation bombardment) releases 0.3-3 bars of oxygen into the atmosphere.
dw we got a solution for the radiation too https://physicstoday.scitation.org/doi/abs/10.1063/1.2970203?journalCode=pto
VLF radio wave emitters could clear out Jupiters radiation belt to tolerable levels within 12 months.
>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4282758/
What is wrong with me? Why vectors, points, planes attract me so much?
I feel like an untermensch, instead of studying physics or calculus like a normal person I keep spending my time on the coordinate plane... What is wrong with me?
>ancap STEMlords rise up
previously >>13276478
don't shit up the thread
talk math
So fucking what?
Did I get memed on into studying this book?
https://archived.moe/sci/thread/13312559/
>not a result of headbinding/artificial elongation
>skull weight affirms this
>can't talk about it to anyone because they'll call me a schizo
>completely forget about it for a few months
>not the first subject this has happened with
This is one of those things that are supposed to completely change your worldview but it keeps slipping out of my mind. What is this phenomenon called? Am I just retarded?
A fascinating bunch of people with too much time on their hands and too little love and beauty in their lives.
In other words, when does [math]|\psi\rangle = {\mid}{\uparrow}\rangle + {\mid}{\downarrow}\rangle[/math] collapse into [math]|\psi\rangle = {\mid}{\uparrow}\rangle[/math] or [math]|\psi\rangle = {\mid}{\downarrow}\rangle[/math]?
Before you say, "when a measurement is made", what is a measurement exactly?
![safebooru.org - 2778146 - nier_(series) ~ yorha no. 2 type b (hoshizaki_reita) [PNG]](https://i.4cdn.org/sci/1624488240557s.jpg)
Is delta 8 THC bad for one’s health?
He isn't built for it.
Doing something truly remarkable - Darwin, Newton, Oppenheimer, etc... -
It takes something that Veritasium guy will never have.
Yes, it's true that Oppenheimer, who arguably is the reason why America has been the sole super power- was diagnosed with schizophrenia, buy that is precisely Veritasium guys problem. He cares way too much about being liked, and not enough about the kind of insane jump required for true breakthrough.
I just cant grasp it, just look at pic related... What a joke.
take (0, 1) upper bound 1, lower bound 0.
consider n \in (0, 1)
given n != 0 or 1, for all n otherwise 50% of all real numbers in (0,1) are both greater than and less than n, since 1, 0 \notin (0,1) then this is true all the time for all n.
proof:
f(n) = n
g(n) = n + 1
f(n) < g(n)
lim(n->inf) : inf < inf
given x = lim r ->inf
lim(f(n), g(n)) = x
x < x
contradiction
thus, lim f = lim g
given that there are infinite reals between (0,1)
for any n, as a point on (0,1) can signify a cut where:
M: (0, a) and N: (a, 1) are both infinite and therefore can map onto each other.
M->N has a one to one correspondence.
and it's 1/2 instead of 1/3 because of the earlier result (which should be obvious)
Stop worrying about it.
>unless youre a scientist
My question to anyone here that may be familiar with work in a laboratory is: are this kind of job at risk of being automated? Rumours say that lab technicians are already less and less needed due to automated tests and programmed analysis.
These oils, made by chemically treating and heating the seeds of vegetables, are high in omega-6 linoleic acid, and low in omega-3 and omega-9.
And they are in EVERYTHING.
Olive oil, by contrast, is a fruit oil made by just cold pressing ripe olives, and is high in omega-9, and low in omega-6. Humans have been consuming this fruit oil for millennia without becoming obese.
>The Edwin Smith Papyrus is an ancient Egyptian medical text, named after the dealer who bought it in 1862, and the oldest known surgical treatise. It dates to Dynasties 16–17 of the Second Intermediate Period in ancient Egypt, c. 1600 BCE. While other papyri, such as the Ebers Papyrus and London Medical Papyrus, are medical texts based in magic, the Edwin Smith Papyrus presents a rational and scientific approach to medicine in ancient Egypt.
>It contains the first known descriptions of the cranial structures, the meninges, the external surface of the brain, the cerebrospinal fluid, and the intracranial pulsations. Here, the word ‘brain’ appears for the first time in any language. The procedures of this papyrus demonstrate an Egyptian level of knowledge of medicines that surpassed that of Hippocrates, who lived 1000 years later. The influence of brain injuries on parts of the body is recognized, such as paralysis. The relationship between the location of a cranial injury and the side of the body affected is also recorded, while crushing injuries of vertebrae were noted to impair motor and sensory functions. Due to its practical nature and the types of trauma investigated, it is believed that the papyrus served as a textbook for the trauma that resulted from military battles.
>The papyrus includes a list of the instruments used during those surgeries, instructions for the suturing wounds, and descriptions of using swabs, bandages, adhesive plasters, and cauterizing. Written in black ink, with explanations written in red ink, the papyrus even contains a section on gynecology and one on cosmetics, along with five prescriptions. The Cairo Museum contains a collection of surgical instruments, including scalpels, scissors, copper needles, forceps, spoons, lancets, hooks, probes, and pincers.
Where to start? D:
I need at least to know how to read circuits n' shiet
https://www.sciencedaily.com/releases/2021/06/210611174037.htm
wtf
>The only problem with the happy screaming that "the Armageddon is back" is that there are no people dying. Just check the daily deaths graph and verify my statement that "there is no sign of a detectable deviation from oscillations near zero".
>Why are the "cases" increasing but the daily deaths (and even hospital admissions) stay near zero? It's simple. You may trace the new revival of Covid to a new variant. They started to be labeled by Greek letters (because the more descriptive nation-based names are considered politically incorrect by the left-wing aßholes who control this whole propaganda) and the relevant one is the "delta variant" (yes, it used to be the Indian variant). A few weeks ago, the delta variant was responsible for 90% of new cases in the U.K.; that delta dude dominates the (right end of the) graph of cases. How does it differ from the previous variants? Well, the previous variants often killed people, didn't cause a runny nose, but could cause the loss of taste and smell. Instead, the delta variant doesn't cause the loss of smell and taste. But it does cause the runny nose, sore throat, and reactions similar to seasonal allergies.
>The delta variant looks like a cold, swims like a cold, and quacks like a cold. Why is it so? It is because the delta variant is a common cold.
Is our /sci/fu mistaken?
>Helion Energy’s Trenta prototype merged and compressed high-Beta Field Reversed Configuration (FRC) deuterium plasmas to fusion conditions, reaching 9 keV total bulk plasma temperatures with operation above 8 keV ion temperature and 1 keV electron temperature. Extensive calibrated chords of x-ray spectroscopy, 1055 nm interferometry, Bremsstrahlung optical emission detectors, and a wide array of magnetic separatrix and neutron diagnostics confirm extended and repeatable FRC operation at thermonuclear fusion conditions.
2. Cut them down when they're grown and dump them in the sea
3. Plant new trees on the cleared area and repeat
Would this work?
Are you concerned at all with these electrolytes? If so, what are your prefered choices to get the recommended amounts?
Also most of the K and Mg is inside the cells, so avoid the "muh blood work", which tells nothing.
If you go back in time a million or so years and move a single grain of sand in the middle of the Sahara desert a millimeter to the left, leaving this the only thing changed, have you impacted the future (present) in a meaningful way (e.g. a measurable change, human history, state of the earth, etc.)
90% of my friends say “no” and claim I’m taking “the butterfly effect” way too far and nothing would change. Even some people who agree with me are more reserved such as “it may or may not change the future” when I know for a fact it would. Want to hear some other perspectives. Make me believe you if you disagree, if you agree help me better formulate my opinion.
-YS
- be professional noise interpreters
- make some shit up about what you found in the noise
- pretend like its some new exotic particle or dark matter or something else you made up
- ask for billions of dollars so you can run a new scam
You have to appreciate the scale and the brazenness of the scam. But surely people will catch on eventually right? Are these (((scientists))) worried about being lynched by the taxpayers for fraud? Are they not worried about the mathematicians that call out the fraud daily? How do you get such a large recurring scam going and just run it out in the open? Are they really just that good at bullshitting people?
What gps thing should i get?
I asked diy but they just mocked me.
Given the large body of reported cases by credible witnesses (sometimes with compelling physical evidence such as the Lonnie Zamora case), scientists mostly brush the subject aside. To me this appears very close-minded, and reflects a fear of new information that could challenge a person's fragile worldview.
>would've been making a surplus $1000 from the aid I was receiving
>instead went to university that I'll be paying $8000 annually
Jesus Christ I'm such an idiot. I barely read the financial aid offers since I was in the middle of a hectic school year and I skimmed over all sorts of information. I could've fucked around with philosophy/politics at the liberal arts college but I convinced myself that the other one was worth it because of its reputation. I'm losing my mind thinking about this shit. Do you think if I reapply to the liberal arts school next year that they will accept me back with the same offer?
fuck this
Can I work while I listen to binaural beats and this will help me with lessening sleep deprivation while I work?
Will this harm my health?
https://patents.google.com/patent/US20060145019A1/en
https://patents.google.com/patent/US20060145019A1/en
https://patents.google.com/patent/US20060145019A1/en
https://patents.google.com/patent/US20060145019A1/en
A1/en
A1/en
A1/en
>A1/en
*Exits /sci/*
>writes to Roosevelt that the US should work on a nuclear weapon
>worked on a unification of relativity and quantum physics
>didn't believe in quantum pysics "because the universe doesn't play dice"
i seriously don't get it
i believe truly that mental illness doesn't exist and what is happening is actually spiritual illness (demonic oppression/posession)
If the most powerful telescope we have can see to about 10-15 billion light-years (start by knowing that the supposed age of our Universe is 13.8 billion years) and James Webb will be able to see almost 100 million years after the Big Bang, does that mean that the Obeservable Universe will be almost the full scale of the whole Universe?
Because as i think, we will be able to see almost the beginning of things, which will be nearly the whole Universe, am i right or the Observable will always be a micro-dot of the whole scale?
>Bonus points for medfag specific tips
If so how do we get rid of them?
>if you have two pipes spewing water at 10 l/min each, and you open the second pipe you have doubled the flow
>if you have two shuttered windows, open one, and then open the second you have NOT doubled how lit up the room is
I dont know how to go about it though.
But id figure maybe you guys would know.
https://www.youtube.com/watch?v=u19k7881w-Q
Discuss.
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