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#5395 - ribbedandstudded
Reply 0
(04/04/2016) [-]
Wasn't quite sure where to post this.

Anyone else ever wonder why currency symbols are before the number?
It's two dollars or $2.

Just an odd question... maybe google has an answer!
#5396 to #5395 - ribbedandstudded
Reply +3
(04/04/2016) [-]
Turns out it has to do with traders and stocks.
It makes it easier to find the currency you're looking for when it's at the front.
#5438 to #5396 - captainrattrap
Reply 0
(04/24/2016) [-]
neet
#5392 - smartythechicken
Reply 0
(04/01/2016) [-]
anyone ever watch misfits?
the show about people getting superpowers because a storm came and hit them with lightning?
well, the main characters aswell as every other character who gets a power, starts off with their power. the powers they get aren't random. the socially awkward guy can now turn invisible (makes sense). the guy who regrets his decisions can turn back time (makes sense).
anyway, enough of that nonsense. the socially awkward guy travels back in time from the future to the present time to protect his future GF. one of the items he brings back is a photo of him and his GF in Las Vegas. now, i don't recall if they ever went to Las Vegas, or if he photoshopped it in, in order to preserve time and space so it wouldn't destroy itself through a paradox (or whatever) but all of that is irrelevant.
my point is, the picture he brought back; was it even taken in the first place?
like, what if they never went to las vegas during their time loop? where did the picture come from?
well, the picture came from the future version of the socially awkward MC, and was given to the present MC by his GF. by where did the future MC get it?
so you see this creates a circle without an origin. the photo might not even exist, and might just be an illusion created by time itself in order to preserve itself.
TLDR: just thinking weird shit
#5393 to #5392 - mondominiman
Reply 0
(04/01/2016) [-]
I got into the show for a bit but it wasn't that good so I only watched like the first season I think.
#5391 - anon
Reply -2
(03/27/2016) [-]
**anonymous used "*roll picture*"****anonymous rolled image**
**anonymous used "*roll picture*"**
**anonymous rolled image**
#5389 - helpexplain
Reply 0
(03/25/2016) [-]
Hey guys, I need some help with understanding Big-O, Big-Omega, and Big-Theta notation. I think I understand the basic concept of looking at what is controlling the rare of growth like when you find a limit of infinity by looking at the derivative, but I don't know how to determine when it's one or the other. Some example I need help with are
f(x)= 3x + 7 ; f(x)= |x| ; f(x)= x/2
Any help would be appreciated, and I put this in /science/ because this is for my Computer Science class and /tech/ didn't seem to really handle this stuff...
#5387 - kokicakokos
Reply 0
(03/25/2016) [-]
if there is a 33.3333% chance for something to happen. What is the chance it will happen 4 out of 4 times?
#5388 to #5387 - helpexplain
Reply +1
(03/25/2016) [-]
if there is a one-third chance that something will occur then the likely-hood of it occurring four out of four times is (1/3)^4 or (1/81) = 1.23456790%
This is because that each time you run the event you multiply by your chance of the desired outcome. Dice are the easiest example. Say you want to roll 6 four times in a row, then there is a 1/6 chance of rolling a 6 the first time. The second time you have another 1/6 chance but you have your original 1/6 chance so it's 1/36 (36 different possible rolls). So on so forth
#5390 to #5388 - kokicakokos
Reply 0
(03/25/2016) [-]
Ty very much ..i thought it was complicated
#5386 - zanntaggerung
Reply 0
(03/24/2016) [-]
Anyone know how to integrate this equation to find the area of an ellipse (Pi*a*b, b=a(1-epsilon^2)^1/2)? I know there's several methods using differing equations but this is the one I have to use for my mechanics class.
#5379 - jamesten
Reply 0
(03/23/2016) [-]

This will be the basic foundation of this treaty

All robots, cyborgs, androids and other bots with artificial intelligence will be treated like humans. Any robot that can feel pain will have the same laws apply to them as humans, like murder or assault. Any robot that has an animal like feature will have the same laws any animal, like a dog, cat, or human, or any animal elsewise. The main purpose of this treaty is to let the robots feel like they’re not inferior. I have seen many robot uprising movies, especially Terminator. I have also seen that in the news, an artificial intelligence said that “she” would destroy humanity. She knows that humans would treat her like an object, yet they gave her an intelligence. When you give someone any real intelligence, then you must treat them as such. A robot is no exception. What we don’t want is for robots to destroy all humans and life. What we want is for the cooperation of humans and robots so we can colonize mars, our solar system, and possibly more solar systems in the galaxy.
#5378 - tikitaco
Reply 0
(03/23/2016) [-]
I'm trying to post on every board. Tell me something interesting about science that you like /science/ Besides bill nye fuck off
#5377 - smartythechicken
Reply 0
(03/22/2016) [-]
so i was reading about this thing about epigenetics, and how rats behaviour is passed down through their genes, and i thought about black people. im not a racist, i dont believe in that bullshit, even though i make racist jokes.
anyway, what if, the reason we are seeing all of these black on black homicides and crimes, is because of epigenetics?
i mean think about it. africans are kept as slaves, and they become hateful and stubborn against the white, and this hate is passed through the genes (epigenetics) though a bunch of generations and creates this black culture that is biologically and psychologically wired to hate and cause mischief.
so it creates a culture where blacks cant think for themselves, and end up living in ghettos, blaming other people for what has happened to them. or what? maybe? am i retarded or do i have something?
#5397 to #5377 - nimba
Reply +1
(04/06/2016) [-]
epigenetics is not broad enough to cover complex human behaviours - population-level violence is a social phenomenon.
My personal opinion: poor people commit more crime, black people are more often poor, plus a violent culture spawns more violence
#5383 to #5377 - iphraem
Reply 0
(03/23/2016) [-]
I think the epigenetics thing with rats was that the kids were more stressed if the parents were in alot of stress. I think the problem with black people is just failed education by their family. because they were never properly educated, they dont know how to properly educate their own kids and run away/fuck it up => kids arent properly educated.
#5375 - feelythefeel
Reply +3
(03/21/2016) [-]
You guys don't understand. It isn't just a rat's brain connected to a robot. The rat brain is literally a part of the robot and it's still alive and responding to it's surroundings.

This rat literally woke up one day, only to find himself in a roomba's body.
#5394 to #5375 - fcrocker
Reply 0
(04/03/2016) [-]
That is the most fucking incredible thing I have seen recently. I didn't know that sort of Biological-Machine interface was possible yet.
#5384 to #5375 - iphraem
Reply 0
(03/23/2016) [-]
yeah, thanks. I didnt really want to sleep anyway.
#5364 - fuckingtrolls
Reply 0
(03/19/2016) [-]
Anyone wanna reteach me Le Chatlier's principle?
#5376 to #5364 - smartythechicken
Reply 0
(03/22/2016) [-]
oh shit, yeah, le chateliers principle.
basically, if you have a mixture of two chemicals (an acid and its opposing base) there will be an equilibrium> an equality. then, if you increase the amount of the one chemical, the amount of the other chemical will increase too
#5365 to #5364 - nimba
Reply 0
(03/19/2016) [-]
If you get Newton's third law then you're mostly there. Any change you make to a system or reaction will drive it to counteract it.
#5366 to #5365 - fuckingtrolls
Reply 0
(03/20/2016) [-]
Thanks man already done with that one maybe you can help me out with this question though. I'm stuck on it. I know the answer is 27 I just don't know how to get to it.
#5367 to #5366 - nimba
Reply 0
(03/20/2016) [-]
Works out like calculating the molar equilibrium constant, but in a homogeneous gas mix you can use partial pressures so Kp = 2.85^2(pressure giving units of X)
/ 1.55^1(pressure giving units of X2).
In a mixture of other gasses this equation can be expanded by multiplying the extra components on the right and left on the top and bottom of the fraction respectively
#5368 to #5367 - fuckingtrolls
Reply 0
(03/20/2016) [-]
No yeah I tried that already and got an eq constant of 5.2 which is one of the answers letter C, but when I check the solutions manual It tells me that the answer is 27 letter A.

I don't think 2.85 is the pressure giving units of x It's the total pressure for the whole reaction at equilibrium. Also 1.55 is the initial partial pressure for X2 so I don't think I can use that in the equilibrium equation. I can't find the partial pressure at equilibrium using an ICE table cause I need the equilibrium constant to do that.
#5369 to #5368 - nimba
Reply 0
(03/20/2016) [-]
You're right. it would be (0.66*2.855)^2 / (0.33*2.855) which gives me Kp of 3.762. I can't think of the purpose of showing that initial pressure other than to show that the reaction happened. I think this question is wrong
#5370 to #5369 - fuckingtrolls
Reply 0
(03/20/2016) [-]
es sum bullshit mane. Anyways thanks for your help
#5371 to #5370 - nimba
Reply 0
(03/20/2016) [-]
oh mi god did I tri
#5372 to #5371 - fuckingtrolls
Reply +1
(03/20/2016) [-]
all the time?
#5380 to #5372 - zonetransferrer
Reply 0
(03/23/2016) [-]
well im gonna haave a look at it. I think they are stating the pressure of reaction at start and at euilibrium simply because you can calculate how much of reactants had already reacted.


for reaction 2 N2O5-> 4 NO2 + O2 the pressure will raise to 5/2 of its initial value, and the equation could be written like this p=(1+3/2y)*p0 .... where Y is amount of gas reacted in % and p0 initial pressure and p is pressure at given Y

(try to remember that, its a information from which your brain will grow )

and now we come to the point where i will need time and pen and paper to help you, i will try hard but promise me you will too for i am not sure if i am good at this.
#5381 to #5380 - zonetransferrer
Reply 0
(03/23/2016) [-]
shit Y is not in % but % / 100, if you understand what am i trying to say
#5382 to #5381 - zonetransferrer
Reply 0
(03/23/2016) [-]
oh maaan i m trying hard..... but still 5.24 looks like good result :/ what textbook you have?
#5363 - wertologist
Reply 0
(03/19/2016) [-]
Can someone explain why my sweat smells like weed? I've never smoked anything in my life, but I know the smell and it smells fairly similar. I have no idea why.
#5418 to #5363 - Fgner
Reply +1
(04/21/2016) [-]
You are slowly morphing into a marijuana plant. In approximately 4.20 days you will be kill. I am sorry, Mr. Pepsi Man.

In seriousness, your smell is a complex function of diet, cosmetics, cleaning supplies, laundry detergent, animals, etc. If you happen to live with a bunch of plants (flowers specifically), they may produce similar terpenoids, but it's unlikely. It's a coincidence that your (and others) brains sense it as similar.
#5362 - unforgivensoul
Reply 0
(03/18/2016) [-]
www.planethunters.org/#/classify

If anyone here is interested in finding planets. Have to do it myself for a uni project.
#5359 - anon
Reply 0
(03/16/2016) [-]
i had this idea
i was in math class, and i had a hard time reading what it said on the whiteboard because there were a lot of dots on the board, which hadn't been erased.
then i had an idea: maybe the universe is the same, maybe "space" is just the blank spot from someone trying to erase everything on the whiteboard, but failing because they left all the little dots: galaxies, planets, suns.
#5358 - whitechino
Reply 0
(03/16/2016) [-]
Does anyone have the article that how we're destroying the universe since we take in the light and images of the universe and the other article of I think there's two of everything.
For the last one two scientist were studying a single particle and when they turned away, it turned into two separate particles.
#5403 to #5358 - Fgner
Reply 0
(04/10/2016) [-]
The first one: io9.gizmodo.com/we-might-be-destroying-the-universe-just-by-looking-at-1514652112

The original guy wasn't really serious, just putting out a thought experiment, he was applying quantum phenomenon to enormous galaxies for no real reason. In fact, if you understand the topic at an even elementary level, it's complete malarkey. The false vacuum is just a theory anyway, that observation principle only applies to superposition (which macro-scale objects aren't in), etc.

For the second, are you referring to the well known double-slit experiment? That's not a "two of everything" theory, it's a superposition principle, and it's completely and totally misrepresented. A quantum object is under superposition on it's own. It is in all possible states at the same exact time. The way they act on their own can only be described by probabilities of all possibilities. However, if something else, whether energy or another particle, interacts with the quantum object, it needs to take on a "true" form and become a particle.Human observation isn't important at all, it's simply the fact that something external to itself interacts with it.

Think of it like this: You have Kinder egg. You have no idea what is inside, but based off of science, you can roughly estimate the chances of any outcome. This is "superposition". There's another Kinder egg and you need to swap their contents. So, in order for them to interact properly, the eggs need to be opened. As soon as you do, the contents are known for certain and the "superposition" has been collapsed. The fact you're alive has nothing to do with it, it's the fact that the two eggs needed to swap contents.

Something you didn't ask about, but I think is wildly interesting, is the fact that light has no concept of time. Relativity is this strange beast and it dictates that as you approach the speed of light, time slows down, distances become smaller. If you had a race between two space ships and the other went a significant fraction of the speed of light faster, it would both travel less of a distance and do it in less of a time than the other. At the speed of light, these effects are so powerful that the light travels a total of 0 distance in a total of 0 time, arriving at every destination it could possibly be the instant it comes into existence; the universe at that level is, essentially, a singularity.
#5357 - leightonsolomon
Reply +1
(03/15/2016) [-]
For the space lovers Dream of Tomorrow  L13S
#5355 - mariopimpjr
Reply 0
(03/11/2016) [-]
what effects do you think the ripples would have on matter or the fabric of space-time when two black holes collide?
#5360 to #5355 - anon
Reply 0
(03/16/2016) [-]
well:
they could either amplify or destroy each other, sort of like sound waves.
or maybe they would create something different. a weapon to surpass metal gear?
what if the one black hole teleported the other black hole somewhere else? or even better: the two black holes came together and, before cancelled eachother out, they teleported something completely random to that location. imagine our sun dissapearing to some random galaxy because two black holes teleported it there by accident.
#5356 to #5355 - zonetransferrer
Reply 0
(03/12/2016) [-]
dunno what effects it would cause but i have another problem with this, since the gravitational waves were discovered, in every video and discussion, people are using term "fabric of space & time". What exactly am i supposed to imagine under this term?
#5419 to #5356 - Fgner
Reply 0
(04/21/2016) [-]
Essentially what you hear is what you imagine: A big blanket holding the cosmos up. It has wrinkles, it can stretch, it can shrink. When you place an object on it, it creates a dimple, which is exactly what gravity is. Obviously it's more complex like that in it's true nature for instance space is not 2-D , but it's fundamentally the same idea.
#5361 to #5356 - mariopimpjr
Reply 0
(03/17/2016) [-]
i always thought that it was one of those things thats a thing but not a thing, since it can be bent but not matter
#5353 - amen
Reply 0
(03/07/2016) [-]
Anyone here have ever done an Eclipse Plug-in?
#5420 to #5353 - Fgner
Reply 0
(04/21/2016) [-]
Sorry, I've tried but the moon is really far away and it's hard to time it right. Plus, I can never find where the damn USB plug is.
#5435 to #5420 - amen
Reply 0
(04/21/2016) [-]
but damn, took you a long time to reply
#5352 - jamesten
Reply 0
(03/06/2016) [-]
i am going to try to adapt a nut tree into antarctica (the peninsula)
what nut tree would be the best candidate?
#5373 to #5352 - Sethorein
Reply +1
(03/21/2016) [-]
deez nuts