So, how does /Sci/ tune their constants in control systems?
I have no idea what any of that means.
>>7787427
trial and error at site because lazy software engineer is not learning from site feedback
>>7787427
I tend to do it with trial and error because I don't know how else to do it
Hey /sci/
Given that mental illness represents a tangible defect in the functioning of the mind, does it not stand to reason that we've evolved some mechanism of recovering from these illnesses, since we the body has regulatory mechanisms which attempt to deal with most of the other illnesses?
Could mental health practitioners achieve better results if they knew about said mechanisms and could work to maximise their effect?
>>7787367
If I cut off your arm, does it grow back?
>>7787367
why isnt your picture a frog? delete it now autismo
>>7787371
No, but the body immediately floods the site with clotting agents and immune vectors to minimise further risks, eventually turning the wound into scar tissue for structural integrity and to keep bacteria and shit out.
What is the most important stem today?
CS. Engineers will be replaced by software.
Women's Studies
>>7787294
this
Can anyone tell me what these landforms are? They look like snowcapped mountains, but given the region (near Baghdad) that seems unlikely
This may be the wrong board, sorry
Coordinates?
>>7787297
33°52'56"N 44°10'7"E
>>7787288
I'd say it's simply small clouds forming above plantations. You can tell because they have exactly the same shape as the forests underneath
I need some help with probabilities. Anyone on that feels comfortable giving me a hand?
It's literally the easiest niche within math because it applies seamlessly to real life.
>>7787273
Go away
https://www.khanacademy.org/search?page_search_query=probability
>>7787287
how far into probability have you gotten lol baye's?
get rekt scrub
I love to pick at my submandibular lymph nodes (The ones behind your jaw). I do this very frequently, since it feels like a testicle (If you're a dude and like to play around with your balls, you know what I mean).
Is this normal?
>>7787252
No, but normal is boring. Don't pick the skin off.
I've had my lymph nodes removed.
>>7787252
sometimes after i eat i have weird pain/swelling where the picture indicates submandibular nodes.
it's either that or my salivary glands. whatever it is its always the left side and sensitive.
Hi /sci/
I took engineering in uni and it felt like we did a decent chunk of math throughout. Not anywhere near the real math degrees, but we had some decent fundamentals down.
I graduated half a decade ago and I've been working a dead end job where I use nothing I learned at school
I just recently came across a problem where I needed to get the position of something given velocity, acceleration and time. That's straight up high school stuff, and its one of the basic kinematic equations for uniform acceleration.
But the thing is, I didn't remember what it was. What's worse, I wasn't really able to derive it on my own either. It felt pretty bad but so many years of not touching *any* of this stuff puts you out of it.
Does anyone else feel this way? Are you all able to quickly spit out the really basic stuff you learned in highschool and university ?
Do you have any suggestions for how to refresh all this stuff? I'd like to maybe spend three or four hours a week just going over all the basic math and physics stuff... but I don't want to crack open a dozen textbooks and work through everything.
Are there any 'compressed' refresher style books or w/e you can recommend? I feel so dull /sci/, I want to feel a bit sharper again.
>>7787209
I've seen this recommended on /sci/ a lot.
http://www.amazon.com/Mathematical-Methods-Physical-Sciences-Mary/dp/0471198269
but the pdf of it I just downloaded is ~860 pages, so that probably doesn't fit the 'compressed/ refresher' description
>>7787231
Looks good, I'll check it out
>but the pdf of it I just downloaded is ~860 pages, so that probably doesn't fit the 'compressed/ refresher' description
Well if its just one book thats pretty good desu. What I meant was more like, I don't want to look up each of my courses, get a similar textbook (or just find the original in my garage if I still have it) and work through things that way
>>7787209
>Are you all able to quickly spit out the really basic stuff you learned in highschool and university ?
After 18 years in industry, most of my colleagues that I've worked with can't. Hell, some of them that were particularly weak couldn't remember that stuff a year after graduating. I can (mostly) and it really impresses people.
>Do you have any suggestions for how to refresh all this stuff? I'd like to maybe spend three or four hours a week just going over all the basic math and physics stuff... but I don't want to crack open a dozen textbooks and work through everything.
I suppose you could use Schaum's outlines or whatever your local brand of study guides is. But, frankly, they're just summaries and don't bother with much in the way of explanation if/when you get stuck.
The textbooks were designed specifically to explain things to students and, hopefully, you have some residual memory of going through them. They're still your best bet, IMO.
What the fuck is wrong with the US education system?
>every school having different standards of GPA
>taking some shitty multiple choice test to decide where you'll be
>can take as many as possible, rewarding people who can go for tuition and spam tests like nobody's business
>people with no money fuckin just lose out
Unlike the UK,
Where
>A levels always test what you learn in school
>open ended questions show actual competancy instead of "maybe its C", "oh i run out of time on ACT let's just spam C for the rest of the questions"
>Has actual experimental component in Physical science exams, e.g. Science Practical Exams, which test your experimental and analytical skills as well as theory
>Overall actually rewards people who gives a shit and studies instead of muh IQ and also less muh private tuition
Would like to hear what you guys think
Glad i went into a UK university instead
>>7787205
we're no longer a colony. We don't care.
>people with no money fuckin just lose out
Reagan's America is a delusional meritocracy full of victim blaming shitheads that unironically believe pulling yourself up by your bootstraps is possible.
Literally a satanic country, not the good kind either.
>>7787205
US uni admissions are almost pridefully antimeritocratic. Standardized tests aren't as influential or as useless as you think, though. The SAT is a fairly good measure of reasoning ability, and many schools here are now "test-optional."
The issue of grades is where it really fucks up big. Especially in humanities classes. Look at an IB english rubric. Take time to really appreciate the level of ambiguity and amount of "professional discretion" assessing someone's work takes. Now imagine none of your papers are eternally moderated, that your one teacher is the first and final authority on what you score, and that the rubric itself has been replaced with one -the teacher wrote herself- to include as much discretionary power as possible so she may block students with whom she disagrees or ones she dislikes from top universities with artificially low grades and give out artificially high grades to students she likes, agrees with, or is successfully manipulated by. You have imagined American high school.
I shit you not, I even got this treatment in math. One test question asked to find lim x->0 of sin(x), so I wrote "sine is continuous on R. By the def. of continuity, lim x->0 sin(x)=sin(0)=0" and got no points. Turns out I "hadn't shown my work" because his markscheme explicitly said I had to say sin(x) "gets closer and closer to 0 as x gets closer and closer to zero." Which, call me crazy, seems precisely a verbal restatement of the equality I wrote down after my actual fucking argument. And yes, I raised the issue very respectfully with him. He gave me the runaround for a good fifteen minutes and made it clear he wouldn't correct my score. There were about a hundred of these landmines throughout the course, and he was much more sympathetic when they hit certain people.
Now you fill me in on how UK uni admissions, offers, predicted scores, etc work. Is whether you get a spot just based on your A-level results, are there other (exploitable) factors?
Hello /sci/, since you (or /lit/) are considered the genius tier of 4chins, I bring my question to you.
What is the most up to date philosophical equivalent of Newton's (or Whitehead/Russel's) Principia? I'm looking to read THE book on philosophy no matter how long it takes me, but I'm not familiar with any modern philosophers. Bonus if it involves mathematics/science, but I'm looking for something along the lines of the ultimate book of knowledge avaialble to modern man.
>i'll ask /lit/ too to avoid bias
>>7787199
>I'm looking for something along the lines of the ultimate book of knowledge available to modern man.
wikipedia.org
>>7787203
The problem is in how you're wording your question OP.
Newton just did some infinitesimal calculations of motion and defined what a force was + astronomy. He wasn't even recognized until 100s of years later. Decarte was more popular with his theory of vortices, but people were like 'Oh shit, Newton's better' in 1800's.
My guess is that you want to learn Logic, because that's the underpinning of any argument presented for Metaphysics, Aesthetics, Ethics, etc.
Hello fellow anons.
Im interested to see how many of you are productive without some form of drugs be it caffeine, weed, alcohol, nicotine, etc. etc. Do you find yourself more productive under the influence of these?
Have you tried to be productive without them? What was the result?
>>7787100
All I "take" is caffeine in the form of coffee
I drink a lot because I really like coffee, not because I need the buzz, although I am mildly dependent on it
I quit once and I felt sluggish and had headaches every day for about a week, then went back to my coffee levels of productivity. Decided I missed my coffee and went back to it.
>"State-dependent memory, or state-dependent learning is the phenomenon through which memory retrieval is most efficient when an individual is in the same state of consciousness as they were when the memory was formed. The term is often used to describe memory retrieval while in states of consciousness produced by psychoactive drugs – most commonly, alcohol, but has implications for mood or non-substance induced states of consciousness as well."
https://en.wikipedia.org/wiki/State-dependent_memory
To simplify it for you drug-addled losers out there, this means if you study while high or drunk then you'll remember what you studied properly only when you're high or drunk again.
>>7787100
Yeah, I'm much more productive while on a stimulant (usually an amphetamine derivative), however, I don't want to get in the habit of using them often like I've seen many of my stupid straight-edge-now-turned-addie-fiend high school friends do when they hit college. Actually I'm just thinking of one guy in particular lol
I use them to study twice a year.
I don't drink coffee or smoke usually. I use cannabis every other day but that's just to relax at night. I drink about 2-3 times a month but that's also not for studying lol.
What is /sci/'s opinion of Data Science? I work in claims analytics for an insurance company and they're flooding our department with money to buy data from vendors. It's like executives got sold on big data from consultants or something. As far as I can tell it's just statistics + exploiting massive computation power.
I too have wondered about these two new memes, data science and big data.
In recent months I've seen city buses where the entire bus is plastered by a local university's masters in data science degree so there's a lot of money behind the meme.
>>7787167
The infographs made about data science and data scientists certainly don't help to dispel the accusations of memery.
So, why are you still here /sci/? If any of you were productive members of society and or had any ingenuity (besides shit posting) you wouldn't be here, in fact you wouldn't even know this shit hole of a website existed.
>>7787050
because 4chan does make me happy and I am having fun
the lack of deep thought on this website doesn't justify a complete condemnation of ever using it
>>7787050
It's the weekend, I'm tired of studying, and friends/gf are asleep.
>>7787050
The maths guide in the sticky is really great. But I would bet my life that nobody has discovered it, read it and then carried it out fully.
>Longevity probably wont be discovered in our lifetime.
>Our species will probably kill itself before the sun explodes.
>Our galaxy will burn itself out eventual.
>Our universe is plagued by eventual mortality.
>Alt Universes and The Big Crunch and anything else even remotely suggesting universal survival are now science fiction crackpot theories made and supported by optimists.
>Its all pointless and will end inevitably with us having no mark on our own little crevasse in the universe, let alone eternity.
So how do you cope?
Just ignore it and let the days go by? 'cause that's what I do.
do math, smoke weed, get laid, read books
HELLO.
I HAVE TWO QUESTIONS:
1. WHAT THE "FUCK" IS THE RELATIVE ORIENTATION OF THE ORION NEBULA ("M42")? I HAVE FUTILELY SEARCHED ONLINE FOR ANY RELEVANT INFORMATION; IT SHOULD NOT BE THIS DIFFICULT TO FIND OUT.
I WANT TO KNOW WHERE DOES THE "OPENING" OR "MOUTH" OF THE NEBULA POINT, RELATIVE TO AN OBSERVER ON EARTH; "UPWARD", TOWARD ORION'S HEAD, OR "DOWNWARD"?
2. THERE ARE FOUR PRIME "STARS" THAT COMPOSE "ORION'S SWORD"; THEIR NAMES ARE "HATSYA", "M42", "M43" —WHAT IS THE NAME OF THE FOURTH ONE? I HAVE ALSO FUTILELY SEARCHED ONLINE FOR ANY RELEVANT INFORMATION REGARDING THIS; IT IS ODDLY AND FRUSTRATINGLY, DIFFICULT TO FIND OUT THIS SIMPLE INFORMATION THAT SHOULD BE, BY NOW, "COMMON PUBLIC KNOWLEDGE" IMMEDIATELY AVAILABLE.
HELLO?
I can't tell you about that, however, I can tell you where else fragments of Heraclitus can be found, besides the ones you are already aware of.
>>7787215
TELL ME.
Am I the only one who finds subatomic experimentation to be spooky business?
>>7786893
Probably because you don't understand it.
>>7786907
Do you?
>>7786918
From the theoretical side. (i.e. I've taken courses in QFT & the Standard Model)
So I know that the experiments the perform are perfectly reasonable and the results they gather line up well with theoretical predictions.