[Boards: 3 / a / aco / adv / an / asp / b / bant / biz / c / can / cgl / ck / cm / co / cock / d / diy / e / fa / fap / fit / fitlit / g / gd / gif / h / hc / his / hm / hr / i / ic / int / jp / k / lgbt / lit / m / mlp / mlpol / mo / mtv / mu / n / news / o / out / outsoc / p / po / pol / qa / qst / r / r9k / s / s4s / sci / soc / sp / spa / t / tg / toy / trash / trv / tv / u / v / vg / vint / vip / vp / vr / w / wg / wsg / wsr / x / y ] [Search | Free Show | Home]

Archived threads in /sci/ - Science & Math - 760. page

This is a blue board which means that it's for everybody (Safe For Work content only). If you see any adult content, please report it.

File: image.png (327KB, 841x699px) Image search: [Google]
image.png
327KB, 841x699px
a very basic question, in all your life have you turned your head equally to the left and to the right? if not, which side and what could be the reason?
8 posts and 1 images submitted.
>>
>>8709461
hmm yes i posit people with one ear smellier than the other will turn their head in the direction of the smelly ear 5x more times than a non smelly ear person if either person are at a zoo.
>>
tendency to sit stand at a paticular orientation relative to someone. i.e subconciously you choose to sit in the right => you turn your neck left more....
>>
>>8709461
>if not, which side and what could be the reason?
whatever side your head tilts right before you die.

all other head movements sum to zero.

File: worry.jpg (7KB, 231x218px) Image search: [Google]
worry.jpg
7KB, 231x218px
why do scientists love to claim the subacuatical cities that are in several coast underwater are natural?
7 posts and 1 images submitted.
>>
So what is subacuatical city, specifically?
>>
What?
>>
>>8710118
I'm glad I'm not the only one. For a second I'd thought that sleep deprivation had driven me mad.

File: 448.png (1MB, 680x1006px) Image search: [Google]
448.png
1MB, 680x1006px
So i had an idea, ice is very slippery, there is lots of it. What if we made an liquid out of ice to make lubrication out of?
9 posts and 5 images submitted.
>>
File: hold the fuck up.jpg (29KB, 400x384px) Image search: [Google]
hold the fuck up.jpg
29KB, 400x384px
congratulations, you have invented water.
>>
File: obama.jpg (40KB, 680x384px) Image search: [Google]
obama.jpg
40KB, 680x384px
>>8707612
>>
File: genius.jpg (20KB, 400x274px) Image search: [Google]
genius.jpg
20KB, 400x274px

File: The-choking-game.jpg (245KB, 940x545px) Image search: [Google]
The-choking-game.jpg
245KB, 940x545px
My little brother started talking shit about how he's stronger than me, so we arm wrestled and I won. So then he said that his legs were stronger and to decide it we played a variant of the choking game. Rules were that the legs would squeeze the neck until the person tapped out (submitted), whoever taps out first loses and is therefore weaker (stupid I know).

So I did it first and my brother tapped out after 205 seconds (we would count out loud). When it was his turn to choke me, I wasn't worried as I am 18 years old, 6'0 and 140 pounds and he is 11 years old, 4'9 and 60 pounds. So it was to my surprise that when my brother counted to 10, I was already in a significant amount of pain. I knew that I wouldn't last 205 seconds so I decided that I would wait until 20 seconds to tap out, out of pride. Before it reached 20 though, I passed out and my brother didn't notice and continued to squeeze.

He said that around the 200 second mark he noticed that I was shaking severely and so he let go. After that, I was out cold for about 10 minutes, my mouth was foaming and I had wet myself.

What was the shaking? Did I have some kind of seizure? I've read a lot about the dangerous side effects and I've had really intense headaches since the incident yesterday. Will this go away? My friend told me that sometimes people shake after getting knocked out and it's normal, so I didn't go to the doctor. Should I go? What are the effects of the game that I could have?
29 posts and 4 images submitted.
>>
>>8747140
>arm wrestling a 60 lbs 11 y/o kid to prove you're stronger at 18

^^...
>>
>>8747153
My brother challenged me, all I did was accept. I obviously knew I was stronger.
>>
>>8747160
So he tapped out after 3 minutes and you got knocked out after 20 seconds and you still think you're stronger? Legs are the foundation and he's already proven that his are superior. Boy, he made you piss yourself how can you say you're stronger?

File: merkiel.jpg (44KB, 420x329px) Image search: [Google]
merkiel.jpg
44KB, 420x329px
Hey /sci/ there was a thread here the other day about books you should read to master math

one of them was called "the art of problem solving" or something, could anyone help me out?

Also fellow in bioinformatics, ask me anything
12 posts and 1 images submitted.
>>
S A B A K A
>>
>>8746647
Translate?
>>
>>8746667
d o g

File: Sanic_Hegehog.jpg (50KB, 819x705px) Image search: [Google]
Sanic_Hegehog.jpg
50KB, 819x705px
Who /gottagofasthere?/. Any other people on sci who only become non-brainlet when they are going fast as fuck? Any tips or tricks to maximise brain clock speed?
11 posts and 1 images submitted.
>>
where are my speed demons at? What do you take to go fast?
>>
Speed demon here, can confirm: going fast makes me smart as shit
>>
Doing LSD makes my brain work incredibly fast. I become extremely analytical and can get lost in thinking about nearly anything.

Not sure if this is the same for everyone. Reading online, not many people seem to share the experience.

Careful, also, because too much LSD will fry your brain and turn you retarded.

File: kneepain.jpg (5KB, 277x182px) Image search: [Google]
kneepain.jpg
5KB, 277x182px
Any Medfags out there can help me out?
>Be me
>Exercise on elliptical 4 times a week
>All of sudden my right knee starts making cracking noises when I bend it
>Shrug it off
>Then suddenly I start feeling stinging pain around my knee area whenever I exercise for more than 20 minutes

I've never had this problem before and it only affects my right knee so I'm p sure it's not arthritis

What could be the cause?
11 posts and 1 images submitted.
>>
>>8746279
Stop exercising it. Take it easy. Take an over the counter anti-inflammatory like ibuprofen a couple of times. Rest it for TWO WEEKS. If there's any increase in pain during that time, go to a doctor.
>>
chondromalacia
>>
>>8746284
What are the dangers of exercising under these conditions? Will my kneecap explode? But in a serious note I guess I can take a break for a few weeks and place my exercise routine on hold.

Read this: http://tauday.com/tau-manifesto
22 posts and 2 images submitted.
>>
>>8746149
i remember in higschool my qt petite milf teacher brought in a cart of like 10 pies for pi day. good memories man
>>
>>8746158
because a couple pies are more important than mathematics?
>>
>>8746166
because the choice to double a constant and title it a new constant is really important in the bigger picture of mathematics

I just can't fucking understand what these things are. Someone please explain them to a retard like me. Specifically gluons.

Also, do you think it's normal, even for people that "understand" these things, to not "comprehend" them? It's poor phrasing, but a parallel would be how you can look at the mass of the sun on Wikipedia, but you can't visualize or intuitively understand just how fucking huge it is. I feel this way about a lot of quantum mechanical concepts.
15 posts and 2 images submitted.
>>
They're random excitations in the gluon field.

The perturbations are in three dimensions, not 2D like a wave that you might be more familiar with, giving them the "appearance" of being particle-like objects in space.
>>
https://profmattstrassler.com/articles-and-posts/particle-physics-basics/virtual-particles-what-are-they/
>>
>>8743715

All particles are "virtual", they're just fluctuations in an invisible field that permeates reality. "Virtual" particles are just really short-lived.

File: 1349331137430s.jpg (12KB, 199x250px) Image search: [Google]
1349331137430s.jpg
12KB, 199x250px
Isn't inequality between races basically a scientific inevitability?

Different populations have obviously diverged all across the globe, into vastly different climates, facing different selective pressures. Europeans went through the ice age, africa didn't.
Africa is the most resource rich continent in the world, populations in other parts of the world have faced more challenges in acquiring their resources.

Also, populations are constantly migrating - when cities started developing in the middle east, people started migrating into cities. They must have been more intelligent, more ambitious and more inclined to civility then the people who decided to stay nomads in the desert. When agriculture was developed, large populations migrated out of the middle east and into europe. So surely the people who are still in the middle east, for the most part, have an uncivilised, unintelligent temperement, genetically?

I'm open to new ideas and being shown that I'm wrong on this, I'm not some stormfag here to try and force racialist propaganda on everybody that I've already firmly decided I believe in. It just seems to me that what we know about natural selection means that different populations or ''races" would have diverged genetically in terms of intelligence and behavioural predispositions.
174 posts and 16 images submitted.
>>
>>8740466
It's only a hypothesis, unless you have conclusive genetic proof about other """races""" (if you can define them to begin with) intelligence (define intelligence), then there's literally nothing to talk about.
>>
>>8740466
I like the American negro.
>>
Yes because cows
Also sheep
Lamb...
Etc

File: metrizable spaces.png (55KB, 645x561px) Image search: [Google]
metrizable spaces.png
55KB, 645x561px
It's that time of the month again:
>what are you researching?
>what are you studying?
>any good problems?
>book recommendations?
>cool theorems?

To get the ball rolling I've been doing some categorical logic, namely reading about the Curry-Howard-Lambek correspondence, focusing on Lambek's side of work. Essentially we have an isomorphism of a certain sort of category (cartesian-closed categories), a limited version of intuitionist logic, and typed lambda calculus. Essentially you get a "proofs as types" relation from the Curry-Howard, but adding Lambek's work you get categories also!

Also been reviewing Milnor's topology from a diff. viewpoint before I head back into differential topology.
325 posts and 95 images submitted.
>>
This correspondence fascinates the shit out of me. Luckily I'm specializing in software verification, which has to do with types, logic etc.
>>
File: Voronin_universality_theorem.png (78KB, 1313x1134px) Image search: [Google]
Voronin_universality_theorem.png
78KB, 1313x1134px
>any good problems?
the collatz conjecture is so fun to think about, yet not an inch of real progress can be made on any question related to it. the dynamical behaviour of maps of such simple maps on the natural numbers just turn out to be so strangely impenetrable

>book recommendations?
Kazimierz Kuratowski - Half Century of Polish Mathematics: Remembrances and Reflections

>cool theorems?
https://en.wikipedia.org/wiki/Zeta_function_universality
>>
>>8728665
>>what are you researching?

The same as always. I am researching whether or not I am actually a genius and not just "above average" so that I can know if I should stay in mathematics for a career and do great things, or if I should settle down and then get a masters in mathematical finance like the low IQ cuck I am.

Why is this so hard? Why is there no definitive genius test?

I do well in calculus, but then that could just be that calculus is my intelligence limit

I do well in analysis, but then it could just be that analysis is my intelligence limit

Fuck it all. But this semester I am taking number theory. I've heard that this field is brainlet-proof. To be good at number theory you HAVE to be a genius, right?

Right?

This time this will finally tell me if I am worth anything, right?

Does anyone know someone who was good at number theory but then later showed their brainletness?

File: 1489493884865.gif (67KB, 600x400px) Image search: [Google]
1489493884865.gif
67KB, 600x400px
what does log mean and what is it?
17 posts and 2 images submitted.
>>
File: image.jpg (262KB, 1200x1200px) Image search: [Google]
image.jpg
262KB, 1200x1200px
log
>>
>>8747282
log is the inverse of the exponential function.
For instance 2^3 = 2*2*2 = 8
Lets say you had the base (2) and the result, (8) and you wanted to find out what power 2 was set to to equal 8, you would take a log.

log2(8) = 3
>>
>>8747294
Honestly a better explanation for log than most high school teachers

Any electronic engineer here could help me identify this apparatus i found in my dad's garage! Any help would be appreciated
14 posts and 5 images submitted.
>>
>>8747205
Bumping with more pics
>>
>>8747205
>>8747206
Bump
>>
>>8747205
Hi,
It's a Tokamak
Sincerely yours,

File: Double-slit.png (4KB, 401x192px) Image search: [Google]
Double-slit.png
4KB, 401x192px
What I never understood is, how do you actually detect a particle (electron or photon) going through the slit without absorbing it into the detector?


I know that you have to influence the particle in some way, with some kind of detector, but how?
12 posts and 3 images submitted.
>>
Ok imagine a light sensitive diode. Imagine it outs out a voltage range for light. You get nothing below planck energy. Break up the signal timeframe and you can see each particle being detected on an oscilliscope.

This actually made einstein screech and vow not ro shave his headbeard.
>>
>>8746922
But with a light sensitive diode, you still have to absorb the particle to detect it, right?
What I want to know is, how do you detect that a single particle is flying through the slit (or one of the slits) without "catching" it.
>>
If done with electrons, you can detect the magnetic field caused by the electron passing by.

File: woah dude.jpg (50KB, 460x317px) Image search: [Google]
woah dude.jpg
50KB, 460x317px
duuuuuude.
16 posts and 3 images submitted.
>>
There's an ubstable point when Im drinking when I get really good ideas and insight in math.The problem is past this point the pain gets in.
>>
>>8746502
Kinda like the Ballmer Peak?
>>
>>8746498
I know lsd is popular among 6 figure salary scilicon valley programmers, and a certaim biologist attributes lsd to the discovery of the double helix structure of dna

Pages: [First page] [Previous page] [750] [751] [752] [753] [754] [755] [756] [757] [758] [759] [760] [761] [762] [763] [764] [765] [766] [767] [768] [769] [770] [Next page] [Last page]

[Boards: 3 / a / aco / adv / an / asp / b / bant / biz / c / can / cgl / ck / cm / co / cock / d / diy / e / fa / fap / fit / fitlit / g / gd / gif / h / hc / his / hm / hr / i / ic / int / jp / k / lgbt / lit / m / mlp / mlpol / mo / mtv / mu / n / news / o / out / outsoc / p / po / pol / qa / qst / r / r9k / s / s4s / sci / soc / sp / spa / t / tg / toy / trash / trv / tv / u / v / vg / vint / vip / vp / vr / w / wg / wsg / wsr / x / y] [Search | Top | Home]

I'm aware that Imgur.com will stop allowing adult images since 15th of May. I'm taking actions to backup as much data as possible.
Read more on this topic here - https://archived.moe/talk/thread/1694/


If you need a post removed click on it's [Report] button and follow the instruction.
DMCA Content Takedown via dmca.com
All images are hosted on imgur.com.
If you like this website please support us by donating with Bitcoins at 16mKtbZiwW52BLkibtCr8jUg2KVUMTxVQ5
All trademarks and copyrights on this page are owned by their respective parties.
Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.
This is a 4chan archive - all of the content originated from that site.
This means that RandomArchive shows their content, archived.
If you need information for a Poster - contact them.