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Archived threads in /sci/ - Science & Math - 217. page

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So I'm writing a short story where the main antagonist is basically a living lump of indestructible raw biomass with its nerves hooked up to mechanical limbs, and our heroes kill off said creature by drenching it in a super corrosive acid, which finally kills it, so I need to know what the most corrosive acid (or just most corrosive to flesh) is and what the safest way to transport and store it would be

Side note: dissolving in an acid pool sounds like the worst way to go in my opinion
27 posts and 4 images submitted.
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>>9096518
Acid =/= Comic Book Acid
>>
I don't get what you're attempting to tell me
I'm asking for an acid that could corrode flesh quickly
I don't get how you assume from that that I think all acid is a pool of green slime that magically melts things
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>>9096518
Just throw thermite on it

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Fucking classic startups claiming they can do mad shit with deep learning thats impossible
18 posts and 2 images submitted.
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What an embarrassment "algorithm from mit and columbia"
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>>9096462
It's not impossible, it's just really REALLY hard...
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>>9096465
Nah...show me a deep vqa system that can do query understanding at that level and do that kind of multimodal relational reasoning.

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Do you believe that having a high IQ makes you superior to someone with a lower IQ?
20 posts and 1 images submitted.
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>>9095719
It makes you superior in terms of IQ, yes.
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>>9095721
That's not the question being asked.
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>>9095750
Superior is obviously relative to other people and specific traits they have, so when you say it you have to define what you mean by superior. I could be a genius but still get beat up by some jacked dude, who's superior? And besides, why did you make this thread a second time? It's like you're poking around for a "yes" when you didn't even set the question up right.

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If you're so smart, why haven't you discovered a unified theory of physics?
13 posts and 2 images submitted.
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Because physics is for brainlets
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>>9095661
What have you discovered?
How many published papers in world class journals and prizes for discoveries do you have?
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>>9095676
>he fell for the journal meme

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Perelman solves the Poincare conjecture and no women even want to get with him. Similar for other lowbrow math & stem majors. Why are they all virgins?
15 posts and 1 images submitted.
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>>9095468
Women are gains goblins and by extension they are also brains goblins
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>>9095477
Who doesn't Cohomology make their panties drop?
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>>9095468
Math is their pussy

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Hey Sci, I have a strange issue maybe you can help me with.


Sometimes, when I am relaxed and focused I begin to see color swirls that come from the back of my vision towards the center, obfuscating what I can actually see. It only ever seems to happen when I am tired (sleepy chill) or relaxed and focused on something. These swirls range from green, red and purple sometimes blue.


Do I have some sort of neurological issue?
31 posts and 1 images submitted.
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bemp
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Bumperino
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>>9095344
Yes.

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Why is this not bigger news?

When fertility rate gets below 2.0, population starts to shrink fast. The threshold for replacement rate is usually even higher than that (2.1 in developed countries).

Blue numbers are facts, red numbers are predictions. 3 different scenarios with 3 different values.
16 posts and 1 images submitted.
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>>9095015
>People actually believed the overpopulation meme
This is why we need to fix aging.
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>>9095017
Anything over 3 bn is overpopulation, if all people have even half the consumption of US/EU citizens today.
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>>9095021
The western world's consumption is only sustained through enormous personal debt. As that becomes worse, and more and more loans that cannot possibly be paid back pile up, economic crises like what we saw in 2008 will become more frequent. That will eventually cripple the west, bringing down their consumption as they sink down to the level of China or potentially even India.

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What ways exist to maximize height?

I just want to be as tall as my body will allow. Is there something you can do to thicken the discs of your spine, correct your posture, ANYTHING? I just want 0.5". I am so close to being 5'10 all day and that's all I fucking want. I just barely touch 5'10 when I wake up so I know my body has at the very least the length to be 5'10 without any effort already, just from laying down. Surely there is some way if you're a skinnyfat NEET to """increase""" your height.
34 posts and 8 images submitted.
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All hope is lost manlet, just assume the position and wait for death.
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>>9094990
are you moving at a significant fraction of the speed of light?
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>>9095004
Whatever it takes, I'll make it happen.

Why haven't they invented a way to make hair never grow again?
Some people hate having to shave every couple days, and women shave their legs and junk all the time

So what's so hard about science making something to make hair never grow in applied areas?
15 posts and 3 images submitted.
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>>9094840
Have you tried casual use of chemotherapy?
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>>9094844
Kek
/Thread
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It does exist, we just havent figured out a way to make dissolving skin not painful.

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describe ways you're making it the improper way

>pre-med undergrad in shitty college
>volunteer for nearby hospital
>computer based sign-in/sign-out
>go to computer, sign in, then just go to library to do my homework
>after 3 hours, go back to the computer to sign out
>gain ton of volunteer hours a week by doing nothing
>not wasting time doing shitty volunteering that's necessary for med school, can focus on academics
41 posts and 3 images submitted.
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Volunteering at a hospital is mind-numbingly boring, so I don't blame you one bit. I dipped as soon as I got 100 hours.
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>>9093823
cuck
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>>9093815
put down black in my college applications

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>TL;DR will be at bottom
Anons i have a retarded question, please forgive my autism.
Artificial life, power armor, and those dog robots that boston dynamics makes all suffer from the problem of fuel. from my perspective it seems like evolution over centries has allowed most mammals and more specifically humans the ability to work longer and more efficiently compared to any known robot of equal weight and size (with equal abilities).
We have small machines that can simulate almost every action a human can do, but due to entropy, they could not be combined into one machine and work nearly as effectively. changing battries/fuel cells is quick but very cumbersome and wastefull. charging battries is more cost effective but slow to transfer.
> my actual question
Sci, has anyone tried to simulate lungs to produce energy for machines the way it produces temporary energy for humans? is it possible? to me it seems like mechanical lungs that could collect energy from air and release carbon dioxide as exaust? wouldnt that make robots and machines hyper efficient?
could estute biologists and robotics engineers work together to simulate something like this?
My autistic idea was that said breathing engines could effectively power things like exoskeletons, power armor, cordless robots and other machines. Could a hybrid power system allow these machines to operate for much longer periods of time using say 60%-90% air and 40%-10% fuel similar to RAMJET missiles (yes i know thats not exactly how ramjet works)

>tl;dr
can we make breathing machines, if so, would it be better than traditional fuel?
21 posts and 5 images submitted.
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There is a type of batteries that take in oxygen from the air. There are also fuel cells that use stored fuel and again air from the outside. Both provide electricity.

That is the closest realistic solution that I know of.
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>>9095008
>There is a type of batteries that take in oxygen from the air.

i am infatuated with this idea. please provide any articles or sources for me to read. perhaps artificial carbon based life running on pure chemical energy, but without unecissary components like reproduction
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I'm not convinced it's plausible.
Lungs just take in oxygen to burn fuel so breathing robots would still need to carry burnable fuel around. Pretty much anything with an engine already does this.
The main advantage of traditional machines is high efficiency and huge power output, eg. dozers can dig the holes of 10 men in 1/10 the time. But if they had to breathe like humans do they would need 100x the lungs to get the energy they need.
Humans can work longer than machines because we carry hundreds of pounds of burnable fat around with us for energy and use it relatively slowly. Duplicate that in robots you just get heavy, low power robots.

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There is no 'beginning'. Matter and time has always existed. The Big Bang was just one tiny event out of an infinite amount of events.

165 IQ
32 posts and 6 images submitted.
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Goddammit OP, you didn't set up the containment board right. You're supposed to post a link to an IQ test as part of the format in order to keep the tards busy.
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>>9092858
Well duh. <70 IQ
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If time always existed wouldn't it be the distant past still? An infinite amount of time would have to elapse before millions of years ago.

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Going to be taking a gap year before uni, so considered spending it getting a head start on my course (alongside my job, of course).

What maths topics are most relevent to CS (particularly the theory), and what resources should I start with?

>inb4 just go to uni this year
Wanted a chance to be in industry for a year and get some of that sweet experience.

>inb4 just chill and have fun
Learning new maths is fun.
16 posts and 2 images submitted.
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>>9092052
>What maths topics are most relevant to CS
Discrete Math (Combinatorics, Graph theory, etc) , Linear algebra & a bit of Abstract Algebra.
Numerical Analysis (Who said that advanced CS don't need Calculus)
Scientific Computation (how to use Wolfram Mathematica properly.)
Numerical methods for solving the Differential equations of Mathematical Physics
Etc.
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>>9092052
Lambda calculus
Abstract Algebra
Homotopy type theory
Topology

>>9092089
>numerical analysis
>how to use Wolfram Mathematica properly
>Numerical methods for solving the Differential equations of Mathematical Physics
None of these have anything to do with theoretical CS, brainlet.
>>
Does anyone else think that math and cs take entirely different skills to use? I have a friend who's better than me at math, but is a complete retard when it comes to programming. Meanwhile, I'm fairly decent in math but much better working with code.

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how do you apply classical mechanics to turbulence?
54 posts and 5 images submitted.
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chaos theory
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>>9097072
elaborate.
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>>9097128
tl;dr: there is no way to precisely describe turbulences with formulas and shit

that's also why the weather forecast sucks donkey balls

When will we ever reach type 1 and how?
55 posts and 14 images submitted.
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>>9096627
by harnessing all resources on Earth
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how about the future anything at all?
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>>9096627
year 2298-ish. industrialization, war, genocide, destruction, rebuilding, unification

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