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Archived threads in /sci/ - Science & Math - 17. page
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File: chemistry_logo.png (242 KB, 600x340) Image search: [iqdb] [SauceNao] [Google]
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we talk about how the GOAT physicist is Newton

the GOAT mathematician is Gauss

so who the GOAT chemist?
>>
>>8526793
Mendelev desu
>>
>>8526793
Marie Curie

Chemistry is the most beta science.
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>>8526827
I disagree, biology is more of a beta science. Chemistry is actually fun at least.

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There was a poster here a couple of months ago who thought dinosaurs coming from birds was a conspiracy and feathered dinosaurs was a meme. Just to say look at this! amazing.

http://www.bbc.co.uk/news/science-environment-38224564

actual fearthered dinosaur tail preserved in amber.
>>
>only a handful of selected people will be given the chance to test this object's alleged nature and age using self-referential methods made up to yield the results said handful of people expects
>science bitch!!11
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>>8526620
red pilled as FUCK

invent time travel or fuck off op -- oh wait not even that will work because it might just be an interdimensional portal to some universe where your gay jewish science crap is true
>>
It's just teenagers who want them to look like giant scary lizards with giant scary teeth rather than big chickens.

Come to think of it... why DO plucked birds look so much like lizards with beaks and soft skin?

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Press F to pay respects
>>
>>8525260
F

how many years until no living person has been to the moon?
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>>8525265
The last guy to walk on the moon is 81, so soon.
>>
>>8525265
oh fug, Glenn didn't walk on the moon
the question still stands

I reject both that things exist and that things do not exist.
Proof me wrong.
>protip: You literally can not.
>>
>>8524560
Try killing yourself. That should clear some things for ya.
>>
Well there patterns everywhere and laws of nature seems to operate systematically in well defined ways, so clearly some things exist and are objective.
>>
Your claim is unfalsifiable and therefore it is not scientific

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Otherwise Zeno's arrow paradox cannot be solved. To reinstate quickly what the "paradox" is:

- An object traveling from A to B has to pass point C, which is 1/2way between A to B. This is of course experimentally observable
- An object traveling from C to B has to pass point D, which is 3/4 way between A to B and halfway between C to D. This is of course experimentally observable
- An object traveling from D to B has to pass point E, which is 7/8th way between A to B and halfway between D to B. This is of course experimentally observable

So on and so on.

The paradox is not solvable without the concept of limits where 1/infinity = 0. This is also the foundation in which Newtonian calculus is built on. Seems like a irrefutable empirical evidence for the concept of mathematical infinity
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>>8524089
Nope. Godel's Incompleteness Theorem implies that the axiom of infinity is inconsistent.
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>>8524100
How would one solve Zeno's arrow paradox then? Without the concept of limits, the arrow would never reach B as it goes infinitely close to B in [(2^n)-1]/(2^n)
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>>8524089
>without the concept of limits where 1/infinity = 0

dafuq anon? do know how a limit works?

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What can an average joe like me do to help make this happen? Free blowjobs? I'll do anything. (But seriously, what could the average brainlet do, if anything?)

http://www.popularmechanics.com/science/energy/a24172/fusion-reactor-working/
>The Wendelstein 7-X reactor, which uses a complex design called a stellerator, is performing just like it was predicted to.

http://interestingengineering.com/germanys-new-machine-brings-us-leaps-closer-nuclear-fusion/http://interestingengineering.com/germanys-new-machine-brings-us-leaps-closer-nuclear-fusion/

>>
>>8523232
holy shit I thought OPs pic was just some art work.
>>
>>8523272
it is
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>>8523272
Yeah, the first time I saw this a while ago I thought it was either fake or some sort of meme.
>lol I know plasma physics is insanely complicated but this is ridiculous

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I hate chemistry so fucking much. There no fucking logic on it, you're forced to memorise shit. Now memorise this crap, oh but wait there's a billion of exceptions you need to know. I hate even more than biology. Why the fuck my uni forces me to have chemistry in the first semester of my physics degree.
REEEEE!!!!
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ITT: brainlet rage
>>
Makes more sense than physics at the very least.
>>
nice blog post

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Why is it that every math major I meet they tend to have the same quirky personality and get frustrated so easily when we go off topic in a discussion? It almost like chill man I'm just exploring other stuff.
>>
>>
>>8522935
Physics requires a bit of noodling around. It just does not suit the temperament of mathematicians. Also physicists use a lot of rules of thumbs to arrive at the anser such as the lap post method which mathematicians find horrific.

t.Physicist
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>>8522974
* "Lamp post method".

A bit late. I'll go to bed now.

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What are your approved learning methods and way of studying? How do you handle your learning experience?
>>
>>8516308
micro studying

i keep two sets of notes. one in a barf book thats me just furiously scribbling down everything out of the lecture/textbook, and a separate master codex that i compile all the good stuff into afterwards.

the masterbook is small and i take it EVERYWHERE. if i got 5 minutes in line, i read a page. taking a shit, read a page.

squeezing in pages throughout the day i get 2 hours of solid study time without ever having to sit down and "study".
>>
>>8516308

Masturbate until 2 days before the exam and then cram for 20 hours.
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>>8516308
Masturbate when i feel horny and think of big anime tiddies, since it makes me dumber to not release my sperm and also i need to create more testosterone and think more sharp
Study normally but create random problems so i can practice what i learned
Good sleep, vitamins and a good amount of water in order to not be dehydrated
And finally some coffee so i can have good focus on what i'm learning anyway

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Reproductive value (RV) is basically a measure of the amount of offspring a female of a given age can be expected to have over the remainder of her life. By mathematical definition this rises with age up to the beginning of a female's reproductive lifespan, as the probability of her dying before she starts reproducing decreases, and then goes into decline as she uses up her fertile years.

The values in the graph were taken from Amazonian populations which make fairly good models of prehistoric people. In these populations the average age of a girl's first pregnancy...
>>
pedoscience
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>>8527265
2 childs or less at age 30?
My mom had me with 30 and both my sister and brother with 35 so maybe your chart is bullshit anon-kun.
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>>8527265
>fetuses have higher reproductive value than 25 year olds
Show me the source of this graph.

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$x^2*\delta_0$
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>>8527083
0
>>
Ignore

$E = m \cdot c^2$
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$O^p \. i_s \. a \. fag^{got}$

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The launch of Japan's H-IIB resupply mission to the ISS is in less than an hour (13:26 UTC).
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>>8527024
two live streams:

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>>8527031
cool, they're going to do a demo of an electrodynamic tether to dispose of the upper stage and reduce space debris.
>>
>>8527031
NASA TV coverage has also started

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Imagine dragons existed. What would their mouths be made of? I know proteins denature at a certain temperature, so their flames should reach a terminal temperature. The question is, how hot will the flame be? And what organic material will their mouths be made of, assuming their flame is an orange/red one? Provide proof for your answer.
>>
Being a member of the reptile family, they likely spit combustible material the same way a cobra spits venom. All combustion would take place in front of their face, not in the mouth. So there's no need for specialized teeth or mouth features.
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>>8526109
why not just do something like this?
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>>8526438
his dick must burn after doing that

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What is consciousness?
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>>8524250
Stop pls.
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>>8524252

What the fuck did you just fucking say about me, you little bitch? I’ll have you know I graduated top of my class in the Navy Seals, and I’ve been involved in numerous secret raids on Al-Quaeda, and I have over 300 confirmed kills. I am trained in gorilla warfare and I’m the top sniper in the entire US armed forces. You are nothing to me but just another target. I will wipe you the fuck out with precision the likes of which has never been seen before on this Earth, mark my fucking words. You think you can...
>>
>>8524290

come get me bitch and ill fuck your mother, face and all.

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Just found out my mum is a legitimate flat earther. What do I do. Please actually help this isnt a joke.
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>>8526982
acknowledge that you're borne of brainlet genetics, and succumb to the life of a brainlet.
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>>8526990
>Please actually help this isnt a joke
>>
>>8526993
Why do you need to do anything?

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What is the overall consensus for when California will be sunk beneath the waves?

Can an accurate prediction be formed at the current date?

What is the most agreed-upon casualty count?
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>>8526951
These guys look like homosexuals. Can someone confirm?
>>
>>8526953
Take a close look at the logo in their crotch
carry on
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>>8526953
why are they always so fit

I want tha gay bod

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An experimenter is interested in the effect of a new drug on alertness. They gave half of their participants a stimulant, while the other half received a placebo. Participants’ alertness was measured using a standardised questionnaire that they completed both before they took the drug, and 15 minutes after taking it. What statistical test should be used to analyse the data collected from this study?
>>
the homework board is over there
>>>/hm/
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>>8526914
Apologies, I thought the Science board would be a good place to receive a reply from someone with scientific knowledge.

I also think you accidently linked me to where you get your kicks.
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>>8526913
I could be wrong as this is taking me back!

A one-way ANOVA is two or more variables, so here you have the experimental drug and a placebo.

The fact two questionaires are used does make me think that you will need a certain type of one-way though (repeated measures?)

Is there anything like the /sci/ mathematics book list for medicine? I'm aware of what's already on the /sci/ guide, but I'm seeking something more like a "med school bibliography"
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>>8526114
>Need books on X subject
>Go to piratebay
>Type X
>Click on a bunch of links with seeders
>Sort out which one works best for your purposes

wa-la
>>
>>8526114
Yes, but it would be useless. You can't practice medicine without a license and you can't get a license without a degree. Memorizing symptoms of illnesses (which is what med school is) will be useless
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>>8526114
If you just want to study the field for no reason other than to know medical shit, then I'd guess the book Henry Gray's Anatomy of the Human Body

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Hey /sci/, I wanted to know your ideas for Renewable energy.
I think it would be interesting if we used some sort of magnet powered wheel. One positive and one negative magnet pushing against each other causing spin. (Something like this picture)
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>>8525195
You literally just described the motor inside a fan
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>>8525201
I was talking about a more large scare method.
>>
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IF god exists in a accelerating reference frame, then wouldn't that mean that F=ma, the basics of all current knowledge of physics, wouldn't work and therefore you can't say using your knowledge of physics that god cannot exist, since your math is incorrect?

Oh, don't worry I expect you guys to come in and tell me I'm wrong in a thousand different ways, but the truth is I won't bother to read and of your shitposts.

My professor literally told me this in class today and I trust him a million times more than you losers on 4chan so literally...
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>>8525586
>257 replies and 58 images omitted
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>>8525586
Why do you only speak in negatives? It's very hard for me to understand what you're trying to communicate.
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>>8525593
The negatives aren't compounding, so just reread the sentence with flipped negatives.

>IF god DOESN'T exist in a accelerating reference frame, then WOULD that mean that F=ma, the basics of all current knowledge of physics, WOULD work and therefore you can't say using your knowledge of physics that god CAN exist, since your math is CORRECT?

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Is it real?
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>>8525134
How can ADHD be real if our brains aren't real? Checkmate christians
>>
I find people deny the reality of certain mental phenomena as soon as they are named.
>>
Supposedly there are deviations in dopamine and noradrenaline levels in adhd brains so it might be real. On the other hand, it might be a huge meth selling business. Who knows.

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How the heck would you solve for n in the compund interest formula by hand?
>>
Let's just assume n is a positive number≠1 because it's wierd otherwise
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>>8524694
By filling in the other variables and doing linear algebra.
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>>8524694
Fuck you're right, this kinda sucks to do out. Probably some crazy algebra shot that I'm not confident enough to work out.

Ok fellow medfags, it's time for a HIPAA approved, totally anonymous case. Today, we have a 82 year old lady with a past medical history of ovarian cancer that is presenting with passing out once and shortness of breath. What's your differential diagnosis?
>>
I have a question for you medfags

last night I got an awful sharp pain in my upper stomach, I drank 400 mL milk, lukewarm and an orange about 2 hrs before I got the pain, I eat healthy and exercise and other than asthma I'm a healthy fuck. Pain disappeared 2-3 hrs later when I was in bed and I was trying to sleep on my stomach

I've had ulcers and appendicitis before, this was different, now stomach is alright, just a bit sensitive

what gives?

my nonmd diagnosis is heartburn / ibs / extreme gas
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>>8524764
Not an MD, but I would say I have enough knowledge about medicine. It is probably heartburn but you should consult your doctor if it continues to happen also explain the pain a bit more is like stabbing, does it radiate ? etc.
>>
>>8524631
What's her past surgical? Did she have a resection, chemo, etc? Is she on any meds?
Does she have a hx of lung/cardiac issues, or are these new symptoms?

But I'd want to rule out mets big time. Check for pneumonia, do cardiac workup, CBC, get some scans. My bet would be mets somewhere though, especially the brain and lungs.

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do you think, that due to the subjectivity and implicit arbitrariness of defining/(incl. self-)diagnosing mental illness, people sometimes medicalize relatively normal personal problems?

If someone has a personal anecdote of the benefit of an antidepressant, is it always reliable, given the criticisms and stringencies people put on clinical trials for having confounding factors?
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>>8524440
>people sometimes medicalize relatively normal personal problems?
Allen Francis, lead Ed. of DSM-IV, has said that psychiatry has inappropriately medicalized 'normal life'.

>personal anecdote of the benefit of an antidepressant
The clinical trial data on antidepressants is misrepresented routinely.
https://www.amazon.com/Emperors-New-Drugs-Exploding-Antidepressant/dp/0465022006

Who cares what some dipshit in their living-room...
>>
>>8524445

can you give a quick summary of why it is misrepresented?
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>>8524440

Mental illness is real you know! it's not just made up by people!

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Some older people used to say that things like depression are modern inventions.

For them, people are depressed because they are lazy, and if it's not the case, they are just stupid.

So the cure for depression is to do something, work. And for the second case, just stop being stupid.

Also, there are a lot of people, including academics, students and people on this board that claims that Psychology itself is just a pseudoscience for Psychiatry like Astrology is for Astronomy.

>>
>Some older people used to say that things like depression are modern inventions.

Baby boomers can all suck my balls, never listen to those sentient memes.
>>
OP here.
I don't know if I was clear, but this is a serious board, I know that probably it can be viewed by some people like a bait because of the title but no. I could pick some better title anyway...

>>8524317
I would like if you elaborate.

I'm asking these things because I have some bad thoughts you know what I mean and I'm apathetic as fuck but don't talk about it with my family because of commentaries I heard about this issue so I'm always pretenting to be smiling and happy...
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>>8524317

yes, lets have another baby boomer thread, assholes.

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>more investment in nuclear and fusion power
>more efficient and viable electric cars, renewables
>relying less on the middle east for oil
>relying less on dead organic material to fuel our cars
>cleaner air and water

I don't see why anyone would deny it with all the evidence. In the end, even if it turns out to be false, we still get a lot of benefits from trying to solve it.

Plus, it's a good...
>>
> Just tell them that it's safe

Isn't that how climate change began?
>>
Every chemical we make will eventually end up in the environment

>>
climate change deniers are as likely to start believing in it as nutty hippies are likely to believe in the safety of nuclear energy

they're both too uneducated

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Why do some of you guys claim there's no such thing as "Smart but lazy"?
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>>8523218
I don't claim that at all. I claim that the people who self-describe as "smart but lazy" are full of shit
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>>8523218
smart people aren't lazy
>>
>>8523222
THIS

If you were smart you would realize that there is no excuse to be lazy

Only stupid people get caught up in the "life is meaningless" meme

You can understand all of the concepts this world has to offer

But if you don't understand why hard work and effort are required to get anything done, you haven't truly understood anything. You've just memorized some words

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Thread: List of most difficult math and science words/concepts
>>
mirror symmetry
langlands program
geometric langlands program
collatz conjecture
location and order of zeros of zeta functions
>>
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inter-universal teichmuller theory
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>>8520975
>mirror symmetry
The concept is not that bad. The attempt at proof is where things get messy.

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starting non-gen ed classes next semester for major. How can I maintain a high gpa?
>>
>>8526332
Work hard

don't be a brainlet
>>
by studying, practicing, and turning your assignments in on time duh,

Why did you start this thread? If you didn't know that, you aren't smart enough for stem, or even libarts.

sage'd
>>
you liked gen-ed classes? I couldn't stand wasting my time and energy on that bs

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What kind of grading scheme do you like better and think is more effective for STEM? Only a minimal amount of grades (like, where only midterm and final count) or lots of graded quizzes/ homework assignments/ specific tests that make major exams worth less, or something in between?

I got to a big state uni and it's basically like high school with how much homework and tests we have, and from what I've gathered it seems more prestigious uni's just have a midterm and a final with maybe a lower weight quiz halfway between each, especially in upper level courses.
>>
I had a math professor from Ukraine. He said he thought the way American uni's did things was weird and in Ukraine his classes literally had just a final, and that was your grade for the course.
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>>8526046
I like this way of doing things. No bullshit or fluff. Just one chance to pass or not.
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>>8526039
>it seems more prestigious uni's just have a midterm and a final with maybe a lower weight quiz halfway between each, especially in upper level courses.

those are europe schools. american universities focus heavily on application and grinding the material into you. its literally why our schools are the best in the world, because we cram the material down your throat and make autistic test babbies do group projects to get them used to working with real live human beings.

other...