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Anonymous04/03/26, 03:59No.16944314/sqt/ - simple questions thread (aka /qtddtot/)
/sqt/ - simple questions thread (aka /qtddtot/)
Previous thread: >>16893204
>what is /sqt/ for?
Basic questions regarding maths and science. Also homework.
>where do I go for advice?
>>>/sci/scg [//boards.4chan.org/sci/catalog#s=scg] or >>>/adv/ [//boards.4chan.org/adv/]
>where do I go for other questions and requests?
>>>/wsr/ [//boards.4chan.org/wsr/] >>>/g/sqt [//boards.4chan.org/g/catalog#s=sqt] >>>/diy/sqt [//boards.4chan.org/diy/catalog#s=sqt] etc.
>how do I post math symbols (Latex)?
rentry.org/sci-latex-v1
>a plain google search didn't return anything, is there anything else I should try before asking the question here?
scholar.google.com
>where can I search for proofs?
proofwiki.org
>where can I look up if the question has already been asked here?
warosu.org/sci
eientei.xyz/sci
>how do I optimize an image losslessly?
trimage.org
pnggauntlet.com
>how do I find the source of an image?
images.google.com
tineye.com
saucenao.com
iqdb.org
>where can I get:
>books?
libgen.rs
annas-archive.org
stitz-zeager.com
openstax.org
activecalculus.org
>articles?
sci-hub.st
>book recs?
4chan-science.fandom.com/wiki//sci/_Wiki
math.ucr.edu/home/baez/physics/Administrivia/booklist.html
>online courses and lectures?
khanacademy.org
>charts?
imgur.com/a/pHfMGwE
imgur.com/a/ZZDVNk1
>tables, properties and material selection?
www.engineeringtoolbox.com
www.matweb.com
www.chemspider.com
Tips for asking questions here:
>avoid replying to yourself
>ask anonymously
>recheck the Latex before posting
>ignore shitpost replies
>avoid getting into arguments
>do not tell us where is it you came from
>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
>I'm not reading your handwriting
>I'm not flipping that sideways picture
>I'm not google translating your spanish
>don't ask to ask
>don't ask for a hint if you want a solution
>xyproblem.info
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Replies
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Anon04/04/26, 13:58No.16945820
Any recent news involving quantum computing?
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Anon04/05/26, 02:54No.16946435
Holy kek this /sqt/ is on life support
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Anon04/06/26, 12:38No.16947913
Can someone do my homework, it's a geogebra question thing making a construction for the Riemann integrals, thanks y'all <3
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Anon04/10/26, 14:51No.16953175
has qc surpassed the 40 qubit number or whatever it was 5 years ago? I mean actual qubits that can be entangled and used, not some meme marketing number.
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Anon04/12/26, 05:06No.16956910
https://www.youtube.com/watch?v=JtSYeftGUGE
Did he use LLM to rewrite his script? The style just gives me LLM vibe.
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Anon04/13/26, 05:30No.16957721
What is the most elegant "triangle inequality check"?
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Anon04/15/26, 02:57No.16958715
I want to make a borax mixture, as explained here: https://alsnetbiz.com/homeimprovement/homemade.html (the "equivalent to Bora-Care". instructions under "Prepare the concentrate")
I plan on using propylene glycol, and heating the mix in an electric kettle made of glass and/or a ceramic pot.
is this propylene glycol as safe as the instructions say? is the borates mix safe enough to reuse the pot, or should I only keep it for chemical stuff in the future?
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Anon04/16/26, 06:33No.16959266
>13 days
>25 posts
JUST
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Anon04/17/26, 23:25No.16960315
>Le particle is in a bunch of places at once until it's measured, then it's in one place
So how do they know that it was in a bunch of places at once before they measured it? Nobody ever actually describes the experiment, they just show you the alleged conclusion and go "ooh, spooky science!"
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Anon04/18/26, 12:59No.16960557
What are the best books from a beginner's perspective for embedded systems and aerospace engineering, particularly astronautics?
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Anon04/19/26, 06:38No.16961002
So, if you push a long thin rod into a wormhole with a throat diameter smaller than its length sideways, what happens? Does the rod bend around the curved spacetime of the wormhole until it hits itself?
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Anon04/19/26, 08:11No.16961027
What are the three acute angles equal to (in radians)?
Hints:h = [irrelevant]
S(r) = {(x, y): |x| < r, |y – h/2| < Sqrt[r^2 – x^2] + h/2}region 1 = S(7)
facecolor = (G + C)/2region 2 = S(5)
facecolor = G = greenregion 3 = S(3)
facecolor = (G + Y)/2region 4 = [irrelevant]
facecolor = Gregion 5 = {(x, y): |x| < 1, |y + 9/2| < h + 9/2}
facecolor = Y = yellowregion 6 = [irrelevant]
facecolor = C = cyan
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Anon04/19/26, 19:41No.16961592
I have to design and complete a research project/paper (for Geoscience) for my major. If I'm understanding, I'll have eight weeks for design and prep, and eight weeks to complete it, with some time in between the two courses.
How do I...do a research project? I swear half the time I Just try to come up with something that sounds like I can get credit for it and toss it at the wall but that's probably not a good idea for a final level assignment.
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Anon04/21/26, 07:56No.16962475
Solve Fermi’s paradox from a biologist’s point of view.
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Anon04/23/26, 13:28No.16963753
Consider the trumpet formed by rotating the curve around e^{-ax}. A wire coils around it at some particular angle starting from x = 0. It makes an angle theta at the meridian of x = 0. What is its length at x = t?
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Anon04/24/26, 17:08No.16964326
there used to be this google drive full of math books, do you guys know if it's back up/been reuploaded?
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Anon04/25/26, 21:38No.16965305
Little plant seeds should be sown at least 1 cm apart from each other to be sown properly. You have a circular pot whose diameter is one meter. You throw the seeds into the pot randomly. Despite throwing them in there like that, you want there to be at least 70% probability that all the seeds are sown properly (no two seeds are closer than 1 cm apart).What is the maximum number of seeds that you can sow?
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Anon04/26/26, 11:43No.16965550
Does the nature of constantly needing to find 'novel' research subjects essentially create a race to be as esoteric as possible as you try to write your five or six publications a year?
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Anon04/28/26, 04:34No.16966476
What is the maximum number of faces a solid can have whose faces are polygons that are all identical in shape and size?
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Anon05/01/26, 14:46No.16968462
Calculus depends on uncountable sets to produce interesting results; the Lebesgue integral of [math]f:[0,1]\to\{0,1\}; x\in\mathbb Q\mapsto0, x\notin\mathbb Q\mapsto1[/math] is [math]1[/math].So in some sense, "quantized" behaviour is analytically irrelevant.What does that imply then for physics and physical limits? As I understand it, there is some minimal unit, the Planck length, in which physics can happen. Then, how does a path integral work, when a particle can only occupy a finite amount of spaces between any two points?
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Anon05/02/26, 21:01No.16969168
>be home schooled
>"you don't need to know that" for tons of subjects especially math
>I need to know it for my job and virtually all my hobbies/interestsI went from 2nd grade level math to about 5th grade thanks to khan academy, youtube, and some book I got at the thrift store. I want to get to at-least highschool level math. Now that I am exploring concepts that are new to me, it'd be nice to have something I can just punch in the numbers and get correct answers, to see if I get the answer I am expecting to get or not (confirm/verify I understand the concept or not). idc if the calculator is allowed on tests or not. I don't want to get a phone app or use some website, because I don't like needing to unlock it every time and an actual calculator won't have distractions. I understan I should learn how to do said math without the calculator, and I plan on doing that. It'd be to verify I am doing shit correctly and helping explore new concepts.I have a Casio fx-991CW that has done exactly what I am described so far. I'm just wondering how it'll be for graphing (I don't want to need to pull out my phone to see the graphs and etc) or how it will be for highschool math. I some how ended up with a TI nspire CX CAS. Is there any reason the nspire won't do what I want (easy baby mode)? This thing looks like it's meant for NASA engineers and I have no idea how it ended up in my possession lol. I have a pretty high budget if the nspire isn't quite what I am looking forWhile I'm at it, anyone got any suggestions where to go for English lessons? I'm guessing I'd technically be at 2nd grade level with English as well. Khan academy just isn't doing it for me for English
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Anon05/02/26, 21:07No.16969172
Anyone know of any good, comprehensive resources/textbooks on chloroplast biology?
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Anon05/02/26, 22:46No.16969209
Why are the dinka tall? Doesn't this go against Bergmann's rule? All the other africans are short
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Anon05/03/26, 01:22No.16969266
And people wonder why this general died and deserves to remain that way.
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Anon05/03/26, 02:12No.16969285
Objectively speaking, what minimum IQ, especially in regards to nonverbal, do I need to be able to succeed in STEM?
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Anon05/03/26, 16:28No.16969621
Is there more hydrostatic pressure on the guy in the fig.2?
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Anon05/07/26, 03:04No.16971520
Physics question: why is that attempting a one-armed pull-up/hang becomes significantly easier when grasping the hanging arm's wrist with your free hand? Am I retarded? It's the same weight being held by the same hand.
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Anon05/07/26, 14:58No.16971731
>wow having backup organs is pretty useful
>2 lungs
>2 kidneys
>2 balls/ovum
okay, how about 2 organs of critical functions?
>2 hearts
>[...]
>2 brains
>[...]
>2 livers
>[...]
How the fuck do we end up with 2 kidneys and 2 balls but not of the really important stuff? What the fuck?
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Anon05/07/26, 20:16No.16971945
If everything's made up of the same stuff if you zoom in hard enough, doesn't that mean we're all technically related?
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Anon05/08/26, 20:37No.16972577
>humans and most life on earth cannot breathe while eating
>this is just accepted as normal
How long before science fixes this
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Anon05/09/26, 03:47No.16972767
How do I judge the quality of a textbook before delving into it? I am currently investigating Apple crop research and production. I think this textbook might illuminate some aspects of that, but it's from 2014, and I don't want to spend a large amount of time reading it only to find that most of the techniques and understanding are outdated or overshadowed by more recent methods. Is there a rule of thumb or something when it comes to this? Also, I would appreciate any other book or journal recs on this topic. Thanks in advance!
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Anon05/10/26, 14:23No.16973685
So why can't I just use a choice function that is random instead of the axiom of choice?
Literally just pick f(X_i) = random(X_i) for every X_i in the collection of non-empty sets X.
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Anon05/10/26, 16:23No.16973734
What is the rarest element that exists in your home? Even one atom of it counts.
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Anon05/13/26, 20:25No.16975683
Can one of you or a government explain how there's only sixteen & twelve hours per day now?
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Anon05/14/26, 04:51No.16975812
What's covered in upper level EM fields/waves classes in an EE degree that isn't covered in physics 2? Any book recommendations for getting a head start on study? I just squeaked through phys 2 with a "B" but in reality i got raped on the final and i don't grasp magnetism like i should