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/sci/ - Science & Math

 Name Options Subject Comment Verification 4chan Pass users can bypass this verification. [Learn More] [Login] File Please read the Rules and FAQ before posting.Use TeX with $tags for inline and [eqn] tags for block equations.Right-click equations to view the source.  08/21/20 New boards added: /vrpg/, /vmg/, /vst/ and /vm/ 05/04/17 New trial board added: /bant/ - International/Random 10/04/16 New board for 4chan Pass users: /vip/ - Very Important Posts [Hide] [Show All] ### Janitor applications are now being accepted for the next ~72 hours. Apply here. #### New board added: /xs/ - Extreme Sports Self-serve ads are available again! Check out our new advertising page here. [Catalog] [Archive] File: sciguide.jpg (9 KB, 200x140) 9 KB JPG https://sites.google.com/site/scienceandmathguide/ >> Reminder: /sci/ is for discussing topics pertaining to science and mathematics, not for helping you with your homework or helping you figure out your career path. If you want advice regarding college/university or your career path, go to /adv/ - Advice. If you want help with your homework, go to /wsr/ - Worksafe Requests. File: .png (164 KB, 349x385) 164 KB PNG Previous thread: >>12739502 >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://warosu.org/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 Comment too long. Click here to view the full text. 85 replies and 17 images omitted. Click here to view. >> >>12757193 if by local university you mean community college, then do that because the classes are dirt cheap and it'll get you off the chan boards for an hour or two. unless you're a fucking phoneposter. >> File: 1611285908465.jpg (239 KB, 961x816) 239 KB JPG What does it mean if I'm good at numbers (can understand things very well when expressed solely in numbers) and awful in scientific abstracts? Are there any studies where I could fit in easily? >> >>12757530 I can't, the guy asking is a prick. >> >>12757193 why not both? >> >>12757998 It means you're good at arithmetic. You would be good at careers like accounting. >just learned about telegony WHAT THE FUCK?????? File: dna.png (269 KB, 2306x1362) 269 KB PNG why did it start? 58 replies and 9 images omitted. Click here to view. >> >>12753432 for the same reason everything else "started:" because it was energetically favorable and there was enough activation energy to get it over the hump >> >>12757304 >Christian cop out >> >>12753432 Everything was tried, it kept going the best. >> >>12753890 >The mutation IS the random process No, it isn't, you drooling retard, the mutations are non-random authorly mutations, due to RNA networks, otherwise evolution wouldn't work. It is flat out impossible for something so sophisticated to form randomly. You believe a stupid unintelligent model of evolution, with no basis in evidence, and no plausibility, as a way of denying intelligence in nature. That is the type of behavior that can't be abided in science. >> >>12756201 Wrong poster, did you mean to reply to >>12753878? >>12757375 Multiple random-process mutations do not require the age of the universe to happen; multiple random mutations can occur within an organism's lifetime (e.g. DNA replication errors, DNA to RNA transcription errors, external radiation altering individual nucleotides). >>12758325 >non-random authorly mutations Do you mean "non-random authority mutations"? Regardless, I can't find anything on it. Also, >due to RNA networks What RNA networks do you mean? Please elaborate (and elaborate on the "authorly mutations" please, that would be much appreciated). Guys, can you help? I have terrible anxiety, so my psychiatrist gave me rivotril. I take 0.2 mg on the morning and 0.3 mg before going to sleep. And now my dick is almost completely dead. I tried to masturbate after showering, and it got up, but I can't cum. I see a coffee picture on any board, and it does not get up, when before this I got diamonds just with the picture of a bikini. It's not like I'm sexually active (I barely even masturbate) but it feels so fucking weird and disturbing. What the fuck should I do? File: np.png (426 KB, 656x874) 426 KB PNG midlevel cope -edition previous thread >>12732771 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 out of this thread and start your own because it takes a lot of space. >inb4 not science >inb4 poor amerimutts wanting medical advice 188 replies and 36 images omitted. Click here to view. >> >>12758354 how are you measuring your temperature? >> >>12758465 armpit >> >>12758472 Thermometer like...a normal one of a pistol everyone uses nowadays? If pistol, the most accurate reading are from the neck, otherwise armpit. If it gives you constantly 34-35 it's either defect or you're doing something wrong. >> >>12758472 >>12758487 nah he's totally got hypothermia ngmi bro sorry >> >>12758472 Only anal gives an accurate measurment. I'm not even memeing File: 1588881426235.png (49 KB, 225x224) 49 KB PNG How is death possible if energy cant be destroyed? 13 replies omitted. Click here to view. >> >>12757119 death is a matter of misdirection, really. your attention wavers enough and someone can claim you're dead >> >>12757119 No such thing as death, or at least death as you know it. There is an afterlife. >> >>12757119 Science is about experiment and observation. You need to pick a method that causes death with absolute certainty, then apply it to yourself. Please report back with the results. >> >>12758303 if death is not a thing, then LIFE AFTER WHAT, you fucking mongoloid? >> >>12758510 "LIFE AFTER LIFE" Fixed that one for you. File: tenor.gif (13 KB, 220x118) 13 KB GIF The constructal theory of global optimization under local constraints explains in a simple manner the shapes that arise in nature. I will use my own words to explain my speculation. droom = Main highway of evolution. joon = Exit out of the main highway of evolution, for a involutionary direction. aodeen= Droom and joons altoghether, shape and direction of life in time. gooje = First form of life perfectly unique. kool = Combination of goojes. lasco = Population of same gooje. greu = Massive gooje potential. An Aodeen according to "constructal theory" will take a shape and form just like any other creative meaning of the nature: A lightning, a Delta's river, blood vessels, the perfect shape of an egg, the cracks of a land without water, a marathon, statistics etc. Example: A Lightning will start from a certain point in the sky. One main ramification will follow its way further than all the other ramifications. Sometimes this ramification will strike on land. The very same way Aodeen started from a certain point in time. Droom followed its way up to humanity leaving behind Joons and creating new Joons. Goojes took the direction of Droom and Joons. What we find in Droom today is at most all the Goojes when life was created . It's probable to find the same Gooje in different Joons of the past. Comment too long. Click here to view the full text. >> I like your style, op, very inspired. Any other cool ideas you can share? File: EuBsoOsXEAEhVId.jpg (185 KB, 1224x806) 185 KB JPG Is there a time to admit it's just too late? An age where no matter what kind of brave face you put on, nature says KYS? Studies say the brain declines after 25, telomeres start to degenerate, collagen calcifies, testosterone start to drop, sperm and egg count start to decline etc. I'm 34 now and get weird looks when I'm applying for entry level jobs. Most people are at the peak of their careers, I don't even have one. Every time I consider one seriously, they always revolve back to uni and getting a degree. I'm a brainlet who dropped out over a decade. When I was 18 I though I had all the time in the world. But at my age I constantly worry about compound interests, 401k, credit score etc. So uni is a luxury I can't afford. Every night I go to bed hoping my mum doesn't die in her sleep otherwise I'll be evicted. It's all so tiresome. 55 replies and 10 images omitted. Click here to view. >> >>12758492 Free food at presentations lol >> >>12758271 Me too anon but i got stronger and fierce. RN i dont need money, lurk fit tate...tate, tate! tatsunda, anon! >> File: 1480059330003.jpg (171 KB, 760x248) 171 KB JPG >>12758494 I guess I have unrealistic expectations of myself. pic related. >> >>12758505 I don't get it. Is this some kind of grinder meme? >> >>12758505 Just imagine how much suffering we have bc we tell the low IQ they have chance and diversity is good. Just sterilize ppl like OP so the suffering doesnt continue https://youtu.be/vNh8vr2Vvt4 New Glenn is supposed to fly this year. 7 replies and 1 image omitted. Click here to view. >> >>12754565 >Bezos puts Blue Origin into high gear so instead of snail pace, he's going all in and switching to tempo of a turtle with arthritis >> >Year delay >High gear >> >>12754565 Why doesn't he use those money to buy a decent looking gf instead of his goblin >> >>12754565 >Bezos puts Blue Origin into high gear >The current target for New Glenn’s maiden flight is Q4 2022 40 keks >> >>12754582 >>12754599 >>12754602 >>12755004 >>12756325 >>12757782 >>12757853 >>12758235 He says is because he is not getting money from the government, what a cuck. In 60 years the percentage of CO[math]_2$ in the atmosphere has gone from 0.0310% to 0.0425%
The idea that this has no consequences is delusional, like thinking you can change the composition of a chemical reaction and the outcomes won't change.
We need to move anything of value away from sea level cities where the morons will gradually drown and put it at altitudes of at least 70 feet where it won't be destroyed by 2100.
>>
>>12758152
What you're forgetting

Is

The fact

That

You live on a lava filled rock flying through space with a wobble on it, whipping around a fucking giant fire ball that spits radiation at you and also our rock gets smacked with other rocks sometimes that fuck is up

And also, volcanos flip out and try and fuck you up

And the Sahara was covered in grass only 10,000 years ago which is like 1 second ago in universe life time.

But

You're saying that I should care if we fuck the place up for a couple hundred years.

You're also telling me that it's not the 1.x billion chinese

>>
>>12758196
I'm saying we can unintentionally modify the rock to make our lives worse
>>
>>12758154
>The idea that you know the consequences is just as delusional though
You have a simple effect, warming in response to CO2, it can be approximated as linear for small CO2 perturbations, and we know the coefficient, because we did the experiment-- 1 degree of warming per difference ( CO2 now ) - (CO2 1900). That tells you the size of the effect up to a factor of 2 or 3, and that's enough to be concerned and do something.

>>12758184
>pouring billions of dollars into fusion reactor research, nuking china and enforcing a strict one child policy won't be possible without a eco-fascist world government.
Just stop burning fossil fuels!! Tokamaks will never work, and the other things are just stupid. We can already do limitless fusion power via PACER, we could do it in the 1970s, the only obstacle is nuclear proliferation fears.
>>
>>12758196
is this psuedo-quote of john dies at the end?
>>
>>12758152
stop using netflix
>w-what but le scientists said that i must give up meat!

STOP USING STREAMING SERVICES YOU FECKING CUNT!
And sterilize africans and indians, why? i wont tell you (i need that info heh) but it affects some animals and those animals help

How’s /sci/‘s elementary algebra going ? I suppose you guys rock it, am I right ?
>>
>>12755645
1.4 * 0.85 = 1.19
>>
>>12755696
>>
>>12755603
sale price = 140% of initial price
85% of sale price = 119% of initial price
>>
File: 1612337878676.png (535 KB, 640x854)
535 KB PNG
>>12755603
140%
less 15% = 119%
difference = 19%
>>
>>12755603
1.4*0.85-1 = 0.19

lim n -> infinity 2^n - 1 > 0 edition
>>
>>12758413
$\mathbb{N} \cup \{ \infty\}$ and $[-\infty,\infty] = \mathbb{R} \cup \{ -\infty,\infty\}$ are topological spaces, so limits make perfect sense here. what's so confusing?
>>
>>12758444
>>mub topological space
>>muh neighborhood
>Has nothing to do with the limit of a sequence.
actually it has everything to do with the limit of a sequence

"for every ε>0 there exists N such that n>N implies |a_n - L| < ε"

is the same as

"for every set in the form (L-ε,L+ε) there exists a set in the form (N,∞) such that n ∈ (N,∞), implies a_n ∈ (L-ε,L+ε)"

which is the same as

"for every open set V containing L there exists an open set U containing ∞ such that n ∈ U, n ≠ ∞, implies a_n ∈ V"
>>
>>12758461
Wow that's so cool. Have you read any popular science articles about quantum mechanics yet? What can wave functions tell us about 0.999...?
>>
>>12758484
Lol. Here's where your third equivalency fails.
>containing ∞
>>
>>12758461
Nothing is confusing. We knew from the get go that you have no clue about the concepts of
topology or limits, and this keep getting confirmed.

Compared to almost the last decade, you don’t see a lot of people falling in love with math, physics or engineering these days. Back then, they were only loud and proud about it because of seeing it in TV sitcoms and movies that barely scratched the surface about what those subjects were about.

I’m not sure if it’s because of the pandemic or the recent riots over the past year, but I think the “I LOVE SCIENCE” crowd that originated from the Reddit circles is going to be long gone soon. I can feel it.
>>
>>12757523
Another strawman. Do you ever get tired of lying you Jude?
>>
>>12757936
fucking kek it's so accurate
>>
>>12757469
>>
>>12755066
Pretty much this, Science is effectively a brand at this point.

>>12757469
New Atheism more or less did achieve its prominence in the Anglo-American world and its periphery (Europe), not so much elsewhere.
>>
>>12754620
Not much people want to be traders tho

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What exactly is the trajectory of cumming from the window to the wall?
>>
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Do we need a slo mo camera and run several dozen test results to find average speed?
>>
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Does the angle or velocity and friction of pump matter?
>>
>>12757508
cumfy thread op. post more pics like these
>>
I don't know
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>>12757508
>>12757522
>>12757525
>>12757534
>>12757538
>>12757567
post body

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