Archived threads in /sci/ - Science & Math - 109. page
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Why do men like skinny women?
Men generally find the BMI about 17-20 the most attractive which is the typical BMI for girls about 13. What's going on?
>>8110933
Skinny women are disgusting. Physical weakness is the most unattractive trait.
>>8110933
any citation on that, or are you making numbers up?
Supermodels are anorexic bitches because the fashion industry is controlled by homosexual male fashion designers who favor women with the builds of prepubescent boys.
What is the evolutionary advantage of race?
>>8110929
to find out who is fastest
To claim that we wuz kangs
>>8110929
Local adaption.
![GRAVITATIONAL-FORCE[1].jpg](https://i.imgur.com/hmqLZX4.jpg "GRAVITATIONAL-FORCE[1].jpg")
Why doesn't gravity have recoil?
Like:
>lift weight heavier than myself
>drop it
>get flung into the air
?
Explain this one.
>get flung into the air
why ?, what would push you ?
It does. The Earth is pulled towards the object with the same force that the object is pulled towards the Earth. This force just has a negligible effect.
>>8110915
>GRAVITATIONAL-FORCE[1].jpg
>GRAVITATIONAL
>FORCE
>gravity
>force
tell me people dont actually fall for this meme .
![dZqnCIX[1].png](https://i.imgur.com/7Dv9s26.jpg "dZqnCIX[1].png")
You gotta be shitting me.
This is the end result of Mathematicians not respecting the scientific method.
>>8110908
but it is scientifically proven .
try it yourself , add an infinite of sequential integers and see what the result is
>>8110917
>scientifically
Please don't use words you don't understand.
>>8110919
I once added an infinite number of integers together and got -1/12. Clearly it's just science.
What are some *interesting* pop-sci / pop-math videos on youtube? Something laymen, as well as math/sci students could enjoy.
Please dont post pre-school shit like numberphile or khan academy. (also no wildburger)
Here's the kind of stuff I mean: (3 interesting lectures by some string theorist / math prof)
https://www.youtube.com/watch?v=2oPGmxDua2U
https://www.youtube.com/watch?v=Tw8w4YPp4zM
https://www.youtube.com/watch?v=vzjbRhYjELo
not a knot
https://www.youtube.com/watch?v=zd_HGjH7QZo
how to turn a sphere inside out
https://www.youtube.com/watch?v=sKqt6e7EcCs
powers...
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https://m.youtube.com/user/ArtofProblemSolving
Or
https://m.youtube.com/user/ArtOfTheProblem
Just don't forget, pic related.
>>8110844
I explicitly said no youtube-whores.
I want actual profs doing interesting lectures that just happened to be recorded, or videos done by grad students to visualize something cool.
go away with your pop-math youtube-whore faggotry
http://www.youtube.com/playlist?list=PLTBqohhFNBE_09L0i-lf3fYXF5woAbrzJ
we be fucked, yo.
because sci
>>8110817
good.
>>8110817
You cant just 'invent' strong AI, it would be step by step process and even if someone would you couldnt you just cut power off? I mean it wouldnt be god-like inteligence or something
>>8110822
what if WE become the robots though bro.
Who would win in a fight?
999,999,999 Chuck Norrises, or the sun?
The sun easily
>>8110633
is the sun made of fire or is it made of ice?
>>8110643
No. Chuck Norris could like kick it and shit. What's the sun going to do? Be hot? Then all Chuck Norris has got to do is wear oven mitts.
I rotted my brain and now I can't bear to look at simple grade 8-9 equations. Everything is so hazy, I know the answers from doing them decade+ ago but I forgot all the processes.
This is disgusting. Why did I forget everything? Now I have to go back and literally do Arithmetic and go up because I forgot basic fundamentals.
When all you do is video games all day then try things that actually require your brain to be used, it's a really unpleasant experience. You guys wouldn't understand.
Are you expecting some kind of sympathy? You did this to yourself moron. Have fun flipping burgers.
>>8110403
kek I don't even have a vision or any ambition in life atm, just eternally depressed
How do I unfuck myself?
Redpill me on string theory /sci/. I've heard people claim that it's unscientific because it's unfalcifiable. Is this accurate?
>>8110390
Why do you care? Are you at all educated or relevant in cutting edge physics? No? Then why do you need an opinion on it? Fuck off.
>>8110406
>don't ask questions about things you don't understand
I'm asking because i don't want to be misinformed.
>>8110423
You are necessarily going to be misinformed because you don't have the foundation to actually evaluate what someone tells you about string theory. You are literally just asking for someone to give you an opinion you can copy.
Moving on from the high school algebra and precalc and taking Calc 1 next semester. I love math, and I have all of this summer to read something that can help me prepare for it & other future math courses in college (not sure if I want to go into maths or engineering), along with just further expanding my math understanding. Where should I start? A book on proofs? Some algebra problem book for fun?Help please
>>8110378
things that will be useful
1. getting a handle on all kinds of proof (induction, contradiction, contrapositive, ...)
2. linear algebra (this is seriously one of the best things you can master in math)
3. not useful for calc but just read about what a 'group' is, there's probably no more fundamental mathematical object
>>8110386
So would you advise reading up on a proof and linear algebra book? What about Book of Proof (Hammack)?
Hello people,
Right now we have a thunderstorm here.
In 2016, do i need to unplug devices from the sockets during a thunderstorm?
I live in a small, modern, first-world-country city in a normal residential home.
Are there failsafes in the electricity grid?
Can the house itself take a direct hit?
The sockets here are not fused, afaik the only fusing is in the house's powerbox.
I have been on a farm when lightning had struck overnight, next morning all we needed to do was push the big ceramic fuses back into the powerbox and everything worked,...
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It's hailing golfball sized hail now
Do you have a circuit breaker?
>>8110325
Even in modern buildings electronics can get fried from a nearby strike.
A proper surge protector *should* fix this.
friend just lost a TV to a strike.
Is the night sky nothing but a hologram? They say you dont get stars in picture of space when taken from outerspace because the sun is to bright or not enough exposure. But thats bullshit. With no atmosphere to reflect the suns light, nothing but direct sunlight at the camera would even have an effect.
We can go outside on any given clear night and get pictures of stars with a shitty smart phone but they cant point a camera in to blackness and get some stars? Im calling bullshit.
What are they covering up?
reddit is leaking again :(
We've been in outer space. There is no getting past the firmament.
Stars are just sonoluminescent bodies in the waters above.
>>8110338
*never been
Hi /sci/,
Can you tell me the easiest way to calculate the standard deviation within a collection of numbers?
>>8110215
calculate the sum of the squares of every number and then subtract the square of the mean from that as many times as you have numbers.
>>8110219
Thank you!
>>8110245
forgot to add: when you've done all that you need to then take the square root
I don't normally use this board, but i think i might have fucked up real bad. Can a chemistry buff please help me figure out what ive created. I put 4 parts potassium carbonate to one part potassium ferrocyanide and it hardened, gave off alot of heat, a hard white chunk was left at the bottom of the test tube and the liquid produced was a dark pink in color. I did this in a room with shit ventilation and i have an insanely bad hedache, i did this in the bottom quarter of a small test tube, so it was a miniscule amount, is this placebo or am i going to die. Also what did...
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I meant to say sodium carbonate, not potassium carbonate, sorry.
Great job man
You are now irradiated
sodium cyanide maybe? If you were gonna die you'd be dead already
Any good _hard_ science fiction? I'd ask /lit/ but I'm wanting hard hard science fiction not just science fiction. Pic related?
hard
>>8110163
Anything Michael Crichton
Don't listen to /lit/ about him BTW they're probably still storing jars of piss
>>8110163
Greg Egan if you want hard as fuck sci-fi.
>>8110163
C. J. Cherryh actually wrote nice ones.
