Gamma rays have been discovered that will destroy earch by the end of 2016.
http://phys.org/news/2016-09-scientists-unidentified-radio-sources.html
destroy earch? why should I care?
>>8388181
because you live on earch
>>8388181
us earchlings sure better get prepared
how to prove that recursive relation is divisible by 3 for n>=1
Base case T(1)=3 is easy. Not sure about the rest
want T(n)=T(n-1)+2T(floor(n/2)) to be divisible by 3
*waves induction wand, making T(n-1) and T(floor(n/2)) divisible by 3*
so T(n-1)=3a for some integer a, and T(floor(n/2))=3b for some integer b
so T(n)=3a+3b=3(a+b), so T(n) is divisible by 3
>sit in on analog signal processing class to see how much of a joke engineering classes are
>professor is discussing Fourier series
>professor says "every function is periodic, some just have infinite period"
>>8387907
>hey guys, look how shit my uni is haha they can't even teach fourier series properly
you meme'd yourself 2bh the joke here is your university and by extension yourself.
>>8387911
>UC Berkeley is a joke school
K bro
>>8387916
never heard of it
Before birth were we simply, nowhere? I mean trillions of years just passing and that entire time where nowhere and then boom were suddenly there. This intrigues me.
>>8387798
Before birth you were in your mother's womb.
>>8387852
nig
>>8387798
>trillions of years
Anyone understand turing machines? i'm supposed to make one that does the following and I don't even know where to start
no clue on what you need to do exactly but
count variable xyz
read first letter
x if read letter is X x=x+1
y
z
if x<y and <z
then 1
else 0
move one step loop
>>8387680
mark a X, then mark a Y
see if there are Y's left over
reset Y's
mark a Y, then mark a Z
see if there are Z's left over
delete everything and write the answer.
This is the format for a machine made to follow these guidelines "Create a new machine that will move to the right until it finds three x's in a row. It should halt on the location of the first x when it finds a group of three consecutive x's."
Motion relative to what?
>>8387669
To God, duh.
>>8387669
To an inertial frame of reference.
>>8387669
To the point infinity.
Could it really be true that we are the only sentient life throughout the entire universe? I simply refuse to believe it. Whats your opinion /sci/
Anything is possible, anything could be true, its all just speculation and conjecture at this point. There is no data to form any type of conclusion with. People's personal opinions and beliefs with regards to extra terrestrial life are just meaningless.
>>8387636
Great point. I just want to know so badly. It concerns me that it may never be discovered in out life times. Stephen Hawking even said the other say that we should not even look for life because they may wipe us out.
>>8387630
how do waves look in 3 dimensions? every representation i've been exposed to seems to reduce it to 2 dimensions.
isn't it more like a series of spheres that expand from a focal point, where they each compress and expand the medium they move through if it's mechanical? i don't know how it would behave in the EM sense.
i guess it's better to ask if waves are just fields that propagate themselves. it just doesn't make sense to me to see a wave moving in one direction.
like this makes sense. why isn't this the way it's shown?
>>8387626
It depends on the type of wave.
Longitudinal waves, like sound waves, look like stuff moving back and forth along the wave axis
Transverse/Dipole waves, like electromagnetic waves, are in fact moving back and forth in a plane parallel to the wave axis. This is why light has a polarization.
Quadrupole waves, like gravity waves, are more complicated - in cross-section (xy plane, wave traveling along z axis), imagine a circle squishing in the x and stretching in the y to form a vertical ellipse, then squishing in the y and stretching in the x to form a horizontal ellipse.
>>8387626
Waves are just some quantity that oscillate in value over time and/or space.
E.g. EM waves only really act in one spatial dimension, the oscillation is just in the strength of the E and M fields.
How do we translate Politics into STEM autism?
We'll never do anything relevant as a species if we can't effectively control the masses and focus it's workforce into relevant efforts
Politics is the polar opposite of STEM, it's not possible
>>8387467
You mean indoctrinate people? Like China does? No thanks, I'll take my democracy and freedom of speech without "control of the masses", thanks. China's direction will inevitably lead it to conflict with other countries, it's only a matter of time. Also, you should go live there and see how cool it is to "control the masses" in person. There's a good reason democratic countries are the most stable and peaceful ones.
>>8387481
We're fucking monkeys, my nigga
unfortunately the only way to make this work is using the alpha-beta dynamic -- your democracy daydream won't take us anywhere
My little cousin needs to do a project for a school competition,it needs to be something a bit interesting but not hard to do,what are some good ideas?
The synthesis of diamorphine and other morphine derivatives would make for a fun presentation
Build a cloud chamber
>>8387408
Is this high school, middle school or grade school?
por /sci/ ^.^
god I fucking hate this kind of shit
literally only people who don't know math buy these for people that do in some vain attempt at connecting
if you want to connect with me try learning basic fucking algebra first don't buy some fucking shit cup some cunt made because she watched Interstellar and learned that LOVE IS THE ANSWER
fuck normies
>>8387332
This. Oh wow, high school math equations that everyone was forced to learn. How nerdy. This is as cancerous as the normies who get the Harry Potter triangle tattooed on themselves because they're such nerds xDDDD
>>8387341
> Harry Potter triangle
you are the cancer.
Sup /sci/,
I'm working on a proba exercice, but I wonder one thing :
If [math] ( \Omega, \mathcal O, \mu ) [/math] is a measurable space, [math] \{ X_n \}_n [/math] a sequence of random functions, is :
[eqn] \{ \sup_n X_n = 0 \} = \bigcup_n \{ X_n = 0 \} [/eqn]
and
[eqn] \{ \inf_n X_n = 0 \} = \bigcap_n \{ X_n = 0 \} [/eqn]
Moreover, have we, for any borelian [math]\mathcal B [/math] :
[eqn] \{ \sup_n X_n \in \mathcal B \} = \bigcup_n \{ X_n \in \mathcal B \} [/eqn]
and
[eqn] \{ \inf_n X_n \in B \} = \bigcap_n \{ X_n \in B \} [/eqn]
I know that :
[eqn] \{ \lim_n \sup X_n \in B \} = \bigcap_n \bigcup_ {m > n} \{ X_m \in B \} [/eqn] but I do not know how to prove it.
Moreover, I'm NOT asking some help for my homework, my homework are completely different, so fuck you normiefag who wanted to call the mods.
>>8387315
hey man, seems that you actually know math!!!
i study math as well (undergrad), but I hate probability so I'm not even gonna look at this (I'm a Pure guy... aldgebra and shit).
I think you spent too much time asking a question at a place where most users just psudo-science all day long and are mostly morons...
There are math forums out there...
>>8387334
Probability is literally pure math. Hell, even statistics can be done as 'pure' math but its more of a stretch.
Hey /sci/ a question that I was wondering about the other day.
There are many examples of monogamous animals in nature. It has been observed that many of these animals forego their chosen partner in the case of infertility (of one or the other). I suppose it makes sense for such a behavior to develop, which is why I imagine it must also exist in humans?
Hence, assuming the mating pattern of humans is monogamous, wouldn't it make sense that repeated sexual intercourse with the same partner without pregnancy result in a response that encourages the person to seek other partners?
>>8387306
>There are many examples of monogamous animals in nature.
Only the ones that die right after mating. Monogamy is a human construct. Humans have never been monogamous and the shape of the penis and the vagina support this.
>>8387355
>Humans have never been monogamous
My view is that humans are largely monogamous with a little bit of adultery. I don't understand what you mean by "monogamy is a human construct".
>the shape of the penis and the vagina support this
how come?
>>8387538
The penis is made so it will remove the semen. It creates a suction when pulling back out. Repetition clears the vagina of someone else's semen. The semen itself creates a "soft plug" to help prevent this from happening and to help prevent someone else's semen from getting around it.
The reason is because humans sleep around a lot and tended to have orgies.
The Nobel Prize laureates are going to be announced thus week. Who else is hyped?
Prizes that actually matter:
Medicine and Physiology
https://www.nobelprize.org/nobel_prizes/medicine/laureates/2016/
Chemistry:
https://www.nobelprize.org/nobel_prizes/chemistry/laureates/2016/
Physics:
https://www.nobelprize.org/nobel_prizes/physics/laureates/2016/
more interested in seeing what good old Terry T does by the end of the year than seeing some gay awards given out
>>8387287
I read the "Scientific Background", not the normie press release
I feel a winner for the discovery of epigenetics and its applications is somewhat overdue
http://financialaid.stanford.edu/undergrad/policy/progress.html
why does the school only accept transfer students with a 4.0 gpa but their school has a minimum of 2.0 policy????
>>8387252
Because if you want to push the agenda that non-whites are better than whites (and they are) then you better funnel non-whites very effectively to only get the absolute best of them on your universities so that then you can point to the academic genius math major Rakesh Harambibi Malala Yousafzai and then point to the frat kid Brian Brianster and say
>See! Brown people are better than white people. Case closed. Affirmative action now!
And it is fucking working. God speed, americucks.
>>8387252
America lets native-born criminals keep their citizenship. Doesn't mean we should let felons immigrate. (Even though we do)
>>8387274
ive never seen any social agenda trying to prove nonwhite are better than whites, but in a related aspect ive seen them trying to prove their not all bad.