Archived threads in /sci/ - Science & Math - 274. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.
How much sugar does my brain need, and how much is too much?
Just eat a balanced diet or you'll be fine
>>7964075
But I want optimum results.
>>7964077
Okay, drink a cup of coffee with cream and brown sugar when you feel tired
I was adopted 19 years ago. My mother and father told me it's impossible to trace back my biological parents since I was born in a third world country and there weren't documents. Are they telling the truth, will I never get to know my biological parents?
Unless your biological parents have their DNA sequence registered in some lab for some reason it might be extremely difficult, if you come from an orphanage maybe they kept records but I'm not sure you're allowed to access those.
>>7963857
>Science and Math
>>7963868
lmao wrong board I thought I was on /adv/
http://news.mit.edu/2013/you-cant-get-entangled-without-a-wormhole-1205
what if entangled particles are just two ends of a string and the string acts like a wormhole? how do i go about proving this
>>7963762
Start with writing it down mathematically.
>>7963773
i dont know how to................feynman was right when he said not knowing mathematics is a severe limitation
>>7963815
then get some books or go to school
How important is abstract algebra for physicists?
Very. Luckily it's considerably easier to learn than the other types of mathematics that are important to physicists.
>>7963299
What area? I've heard it's most used in theoretical physics, but I'm still not sure if it's worth learning it.
>>7963306
I don't understand. The very worst case scenario is that you learn something interesting that you don't have an immediate use for. What do you mean "if it's worth learning?"
What happens to the brain when one is shitposting?
And
Is there any reason why the brain enjoys it so much?
>>7963082
Why is 2+2 used more than 1+1?
A better question is, what's with that spike at the beginning?
>>7962529
because it's more complicated
>>7962569
>He wasn't around during the 2+2 craze
After my brain has decayed, at some distant point in the future, won't it reform due to quantum fluctuations and tunneling, along with some super computer attached to it that will simulate my life from the day I was born? Why is it not likely that this haven't happened 1 billion times before? Will we ever know? Also pic related.
I don't think anyone has or can say that this hasn't happened. In all likelihood that's exactly what happens, and we're all doomed to repeat our lives eternally.
This is what I thought as well OP.
If the universe is finite, and the probability of such an event is so low, there may not be enough time in the universe for such an even to take place.
>(example)
The universe will last for x years. The probability of the described system occurring in a particular year is p. Therefore the chance of it NOT occurring over x years is (1-p)^x. As p approaches zero, the probability becomes (1-0)^x, or 100%.
Of course the chance of your scenario isn't zero, but it's pretty damn close. If x isn't large enough there is no...
Comment too long. Click here to view the full text.
What's the difference between [eqn]\mathbb{C}[/eqn] and [eqn]\mathbb{R}^2[/eqn]?
>>7961856
The multiplication is completely different.
i
>>7961856
bro they,re letters
they are sounded different
r sounds like errr
c sounds like see
>STEM majors being forced to take humanities courses to keep the graduate school pyramid scheme victims from starving in the street
Why is this allowed?
I agree with the pic desu.
Parroting everything your professor says and pandering to his viewpoints like an obsequious cuck builds your critical thinking skills, obviously ;)
Because nobody wants to hire a one trick pony with no social skills to work for them. Despite what you may think, being a well rounded individual makes you far more interesting.
Why don't we learn calculus I, II and III in our primary school/elementary schools?
>>7956383
Because then the dichotomy of rich and poor would expand when brainlets are forced to learn at the same rate as Newton.
Standardized educational systems aren't effective unless they take the middle ground.
Up to the parents to recognize your potential and put you into a private school if they think you're a genius.
>>7956390
Private schools aren't for geniuses. Source: I went to private school. It was full of morons who wouldn't have been able to graduate had the headmaster not cut them some slack at the end of every school year.
There isn't enough time in the school year. Furthermore, other topics of study must also be introduced
![lossy-page1-146px-Behavior_Modification_Journal_Front_Cover.tif[1].jpg](https://i.imgur.com/ORzQ8NX.jpg "lossy-page1-146px-Behavior_Modification_Journal_Front_Cover.tif[1].jpg")
Why aren't there any big research projects concerning behavior modification?
Since we can use Applied Behavior Analysis to effectively shape autistic children into behaving correctly, and if we can use advanced marketing and rhetoric to easily induce desired emotions and purchasing behaviors, why don't we start researching this highly promising field of behavior modification?
Just imagine:
>criminals trained through positive and negative reinforcements not to commit crime
>people are trained to mostly pursue STEM fields rather than useless arts and humanities
>humans are trained into pursuing and valuing higher goals than constant and pointless consumerism and sex
>quality of life goes up and mortality goes down
>scientific progress is at its peak
>we colonize...
Comment too long. Click here to view the full text.
>>7963827
The big project is called a global economy. Mass social control and modification is expressed as economics. Just look at most of the threads on this Mongolian shitposting board.
>>7963827
Because you've been brainwashed not to think on the subject.
Anyone willing to point me in the right direction on a puzzle I'm working on?
Its a geocaching puzzle that involves multiple ciphers, and I'm stuck at a clue that seems to point to a SPnetwork.
This is output from a checkerboard cipher-
ggsortkaorossonontcvtnoodntvattprcrspsp
The next clue suggests squares or boxes, and the letters S,P
I'm solving for xx.xxx, yy,yyy- so I backed up a step, and divided the input to the checkerboard to get-GGRTORONCXONTUPRSP and
OSKAOSSONTBTODBATCRSP
there is a clue that deals with case sensitivity, so I've used a number base converter to input the letters as base64, but this SP network is over my head
the next clue seems to suggest keeping your lines straight, so I've been leaning towards the Rijndael s-box as wiki describes it involves an affine transformation that I think would satisfy the "keep your lines straight" clue
Will garabe be the end of our planet? How do we fix it?
https://www.youtube.com/watch?v=5z2s_klZkFg
bacteria
The "trash" problem is highly exaggerated. You could take all of the trash generated by America for the next hundred years and fit it in a few square miles of desert
>>7963641
This.
I mean people like to complain about the "great pacific garbage patch" and you can barely see it on google maps.
I have a question specific to people pursuing/achieved PhD in math (algebraic topology, algebraic geometry):
What studying euclidean geometry on school level give you? Did you benefit in any way from knowing something in it? Did it improve your intuition, helped you learn stuff in your field?
Didn't study in school, math major now, wonder if I should learn all that. Looks like total bullshit and waste to me, though.
Are you so busy you can't invest 3 days with a book and see where it takes you?
I think it helps
If you are going to do anything geometric, axiomatic geometry is very useful: not only the basics (parallelism, orthogonality, all that), but also the more sophisticated things (projective geometry, inversions, etc.).
It helps you build a solid understanding of group theory grounded in concrete stuff, as well as non-euclidean geometry and projective spaces.
Now, of course, you cannot skip coordinate geometry, linear algebra, commutative algebra, etc. (as it is, indeed, the basis for *algebraic* geometry) but not everything in coordinate-free geometry is to be thrown out,...
Comment too long. Click here to view the full text.
>>7963681
The thing is, I understand projective geometry, parallelism and orthogonality through linear algebra.
To me, projective space is a union of affine hyperspaces, parallel lines are those satisfying a system of linear equations with no solutions, orthogonality is value of bilinear function on vectors, inversion is just a map.
That's why building trivial stuff, like orthogonal lines in hyperbolic geometry is pain to me: I'm not used to thinking with synthetic geometry.
How about a paring device which converts outlet level electricity wirelessly to a receiver, through harmless frequency microwaves; for like wireless power-strips and the such?
>>7963526
Microwave transmission is line of sight as it's easily blocked or absorbed by obstacles.
I suppose it could work, but don't be suprised when your computer suddenly turn off because your cat decided to take a nap somewhere along the transmission path.
Microwaves are have a low quantum abosortion rate, and are therefore efficient through cats.
