Archived threads in /sci/ - Science & Math - 475. page
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What is there to theoretical computer science besides the P vs NP question (a random, completed isolated from the rest of math puzzle)? Is theoretical computer science even a legitimate field of math?
>>7777505
>Is theoretical computer science even a legitimate field of math?
No
>>7777506
lmao
>>7777505
who is this cum chum
Thoughts on futurists?
Lets stray away from common /sci/ shit-posting dogma.
>>7777492
>>>/x/
>>7777501
If this is a stab at their /seemly implausible/ claims, it seems as if the more generally respected futurists teach at prestigious universities, and hold great knowledge in theoretical fields of science.
As a segue, which of their ideas might actually come into fruition /sci/?
its ok
![ligo[1].jpg_itok=EL8uXt1h.jpg](https://i.imgur.com/yjma3co.jpg "ligo[1].jpg_itok=EL8uXt1h.jpg")
http://www.popsci.com/physicist-tweets-rumor-that-gravitational-waves-may-have-finally-been-detected
> inb4 pop-sci
Watchu think ?
>>7777381
You probably already know this, but wait for peer review of results before forming too many opinions.
>>7777399
Krauss was excited. Do you think it might be officially discovered ?
>>7777381
>www.popsci.com
>PHYSICIST TWEETS RUMOR
op pls
What do I need to know before I start with category theory?
>>7777368
How to draw arrows.
Basic set theory
>>7777374
Thanks senpai
Why do you think the public cares so little about science and to an extent math? so many people cant do either of them but its obvious through click bait like this that they still have a desire to learn more.
>>7777347
Most people only come into contact with high school physics and hate it. Then they get some videos with cool stuff said in them so they feel clever even though they explained nothing and never helped do anything besides make stupid people feel not moronic. Popsci is dumbed down for the benefit of everyone who couldn't have a chance of getting into STEM.
Knowledge isn't skills or understanding.
>>7777347
clickbait has nothing whatever to do with "a desire to learn more", fgt pls
>>7777347
>a desire to learn more
fuck no they dont
Hi /sci/! How do I convince my flatmate that a scientific theory is not a the layman's 'theory' ie. a theory has hard evidence like the 'theory of gravity' or the 'theory of evolution', rather than a 'theory' as in an opinion. They also do not understand that it is incorrect to say 'I believe in this theory'. Does a scientific theory not have hard evidence and is therefore the truth?
>>7777249
There is noting incorrect about saying you believe in a theory.
>>7777270
The dictionary says believe means: "accept that (something) is true, especially without proof."
Does a theory not have proof?
>>7777274
A theory can have evidence. But you generally can't prove a theory right. You can prove it wrong though. Supporting evidence plus the lack of a proof against a falsifiable theory usually counts as "this is more or less true".
Too see why you would need to believe in a theory, take the most fundamental version of the theory of gravity, which can be summed up as: "things fall downwards".
("down" being the direction that things fall in, so basically your theory would be that...
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>Math?
>Psychology?
>Medicine?
>other
I personally opt for the first two
If you care about people med. Since you are on 4chan, I assume this doesn't fit the description of 99.99% of the people reading this.
What did you study? What would you have liked to study?
>>7777777 gets to choose a topic that will be banned from /sci/ forever.
>>7777104
Who are you and what authority do you think you have?
>>7777104
>Implying there is any moderator presence on /sci/
Hope it's IQ threads, though. Free will / consciousness as a distant second.
>>7777113
>IQ
rolling for this
This might be a stupid question but here goes.
I'm interested in the nature of images. For example, an image of a boat, presents a boat but isn't actually a boat.
Is there any further reading on this type of thing? Anything to share?
if u press ur face up against a boat it doesn't look like a boat either
>>7777081
There was a paper just recently on the recognition of a 3D item, and a photo of the same 3D item, in an insect.
That may interest you.
>>7777085
I know, it's too zoomed in.
Is there anywhere I can read more on this?
>>7776985
yep, op's picture would surely fit in /gif/
>>7776978
Good thread
Can someone please explain me what is up with this kind of use of dx?
Why do they write Differential Equations this way? And how do I interpret an equation like this one?
>>7776836
infinitesimals
>>7776836
Its just a bunch of bullshit, op. Don't listen to the teachers.
Basically it means that everything after the [math]d[/math] is zero.
For example, in your equation you have [math]x^2ydx-(x^3+y^3)dy=0[/math] well because you have a dx on the first term and a dy on the second term on the lhs those terms are both zero and you get [math]0=0[/math] which is what we mathematicians call taughtology because you know it ;)
It's a fair notation. For this one just divide everything by dx and then 0/dx is just 0, dx/dx is 1, and dy/dx is your differential
Could you make an air powered turbine that used oxygen as a fuel?
Fire pistons use regular air as a fuel source.
Could you make a turbine that compressed air enough to ignite it?
Would it work?
Is it possible?
>>7776787
what the fuck is a fire piston?
Alternatively, what reacts with the most common atmospheric gasses, like nitrogen?
If there was something that reacted with it well enough, would it be realistic to build an engine around that?
Interesting.
I assume at some temperature, diatomic oxygen would split and release energy. I'm not sure what temperature this would be but I have a feeling it's high enough that your "engine" would have to be made of exotic materials so it doesn't melt.
Bump for interest.
What did you feel when you realized you were born too early to witness Interstellar travel?
Every damn time i think about it, I get momentarily depressed.
Actually, which do you think is a more accurate prediction: Humans NEVER create the capability for Interstellar travel OR Humans do create a way for Interstellar travel but it happens thousands of years from today?
Is a couple thousands years from now too soon?
>>7776764
>50 million years
>Africa collides with Europe
niga it's doing that right now.
>>7776764
You see man, the catch is that....
You're not born too late to INVENT interstellar travel.
>>7776768
But aren't i? If only for the reason that the materials required to do so haven't been discovered on earth?
Hello, im thinking of going vegan. Is it true that vegan ism will make me immune to most cancers and heart disease? Also, I have an infant, if We go vegan, can she get her nutrients from Almond Milk alone? Serious about veganism.
Pic unrelated
>>7776761
Quads of greatness
>>7776761
2/10 bait
>>7776761
How do I solve general number theory problems? Like, what is the mathmatical "toolkit" I can use to solve number theory puzzles?
It seems like I just never know where to start - I either get it within 10 minutes intuitively or never get it at all.
Here is an example problem I am doing at the moment - this is supposed to be extremely easy, but I don't see how to go about working on it.
NB: Please don't spoil it for me, I am just looking for a rough idea of what kind of thing I should be doing to crack these kinds of questions.
Whether you can solve number theory problems or not is determined by your genes. If you have to ask this question, the answer is pretty much clear.
>>7776746
>
Nice bait, senpai.
