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#5068 - songemot
Reply 0
(11/13/2015) [-]
Ay, y'all know anything about bugs? What's this thing called? It just showed up in the kitchen, and I've never seen one before.
#5081 to #5068 - smartythechicken
Reply +2
(11/17/2015) [-]
i think the biologically correct name for it is "OH FUCK JESUS CHRIST KILL IT! KILL IT!"
#5067 - caette
Reply -1
(11/13/2015) [-]
Is it just a coincidence that religion comes immediately before science in ABC order?
#5087 to #5067 - Vanpy ONLINE
Reply +1
(11/18/2015) [-]
Yes, I think it is coincidence.

Unless you're god, and you don't roll dice.
#5064 - stoneshit
Reply 0
(11/11/2015) [-]
We all know you get salts when mixing acids and alkalis. I've mixed citric acid with sodium bicarbonate lemon acid and baking soda and heated it all up until all left was this white substance. Now it smells like powdered sugar, but it is the most foul thing when heated up without water. At first it smelled like mentol, kinda nice, but near the end it transformed into a mixture of lost souls and despair. It doesn't melt, it just kinda burns up into black remains. It violently melts in water, and I really mean violently. When it's dropped in water, it quickly spreads across the surface and the heavier part of the salt forms bubbles and finally melts down completely.


TL;DR what's the name of salt synthesized by mixing citric acid and sodium bicarbonate
#5105 to #5064 - paddypancake
Reply 0
(11/20/2015) [-]
If everything went properly (and this is all internet research, i barely know a thing about chemistry) what you got is
3Na 3H 3C 3O3 + C6H8O7
3Na 11H 9C 16O
C6H5Na3O7 + 3CO2 + 3H20
en.wikipedia.org/wiki/Trisodium_citrate

#5106 to #5105 - stoneshit
Reply 0
(11/20/2015) [-]
Thank you m8, 'bout time someone answered
#5060 - lecorbi
Reply 0
(11/11/2015) [-]
Ok guys, I need some help.

Found this neon sign on the street next to a metal box that probably was connected to the neon sign, it was full of some other wires, some electronic shit and connected to some other lamps and I want to do what needs to be done to hopefully make this thing work again. It looks 100% but i'm a half retard when it's electric shit, so i'm asking for help.
Cont in the comments cause I need to show pictures to help you guys to help me
#5062 to #5060 - lecorbi
Reply 0
(11/11/2015) [-]
firstly, is this diagram explaining it right? All the diagrams I found tell me I should use a transformer. What the fuck is a transformer and what would happen If I just plug the thing (like the diagram shows) but without the transformer to a 110V socket?
Also, What does 12V, control and GND means?
#5063 to #5062 - lecorbi
Reply +2
(11/11/2015) [-]
here's a picture of the back. As the diagrams tells, it should look something like this
#5061 to #5060 - lecorbi
0
has deleted their comment [-]
#5059 - scowler
Reply 0
(11/10/2015) [-]
Alright guys, I need a crash course in High School Algebra and Geometry. At least gimme an index sheet explain what symbols mean what. Maybe some sample sheets I can copy down to a piece of Graph Paper?

'KAYTHANKSBYESEEYOUINTHEMORNING!!!
#5065 to #5059 - asotil ONLINE
Reply +1
(11/12/2015) [-]
#5066 to #5065 - scowler
Reply 0
(11/12/2015) [-]
Nice and bland, no pictures of smiling zombies.

PERFECT.
#5058 - nerfhead
Reply 0
(11/10/2015) [-]
anyone want to talk about pics that some say are of time travelers? like the charlie chaplin one where the person seems to be talking on a cell phone even though there wouldnt be any reception then
#5070 to #5058 - zonetransferrer
Reply +1
(11/13/2015) [-]
hmmmm this is very interesting, maybe you should go and ask at /autism/ i am sure they will share same interests
#5073 to #5070 - nerfhead
Reply 0
(11/14/2015) [-]
im not saying the pic is of an actual time traveler. i just wanted to talk about how theories can or cant apply
#5053 - russianxbear
Reply 0
(11/09/2015) [-]
In a 2 dimensional plane, you can take lines and form them in a way that you can perceive it when you look at it in a 3rd dimensional self to be a 3 d object (ex. Drawing a 4 sided pyramid on a sheet of paper)

If this is true, can there be 4 dimensional objects in our universe that we merely can't perceive it ourselves?
#5057 to #5053 - smudgiemuffins
Reply +2
(11/10/2015) [-]
The mathematical concept you're thinking of is a projection. By the nature of the way light reflects and the way our eyes pick it up, we're really good at interrupting a particular projection of 3D objects onto planes. In computer graphics, it would be called a perspective projection. However, understand that information is lost in that particular projection. For example, when you see a cube you can't see the faces behind the cube. It is perfectly valid to project a 4-dimensional solid onto a place. When you see those weird rotating tesseract gifs, that's what's being done. But you're not seeing the "whole thing" so to speak. In fact, you can project objects in any space onto another space in any way you'd like.

In mathy terms, if you're familiar with the sort of thing, set theory guarantees a bijection between any subsets of R^n and R^m. So you've got a lot of flexibility. It just so happens that certain projections make intuitive graphical sense to us like orthographic projections and perspective projections.

While mathematics allows us to consider spaces any number of dimensions, as far as we can tell, physical space is 3-dimensional. If you want to consider some 4th spatial dimension that light does not interact in purely for the mathematical intrigue, have at it! But in the physical sense, no such evidence of higher spatial dimensions is concrete.
#5054 to #5053 - prycebear
Reply +1
(11/09/2015) [-]
Probably.
They also say that we can see 2 dimensional creatures if they existed but they cant see us but 4th dimensional beings could see us but wouldnt have to announce themselves.
Sorry if im vague im proper fucking tired
#5055 to #5054 - russianxbear
Reply 0
(11/09/2015) [-]
It's okay my bear bro
#5056 to #5055 - prycebear
Reply 0
(11/09/2015) [-]
Sciency bear bros!
#5046 - mysterie
Reply +1
(11/06/2015) [-]
Is anybody here good at decoding ciphers?
#5051 to #5046 - cognosceteipsum
Reply 0
(11/09/2015) [-]
Like what
#5050 to #5046 - pinkiesmiles
Reply 0
(11/09/2015) [-]
Like Egyptian hyroglyphics or that Sumerian symbols?
#5049 to #5046 - prycebear
Reply 0
(11/07/2015) [-]
A lil bit, not insane but ok
#5045 - sshare
Reply 0
(11/06/2015) [-]
So do any of you have an essay on a poem you wouldnt mind sharing with me?
#5052 to #5045 - cognosceteipsum
Reply 0
(11/09/2015) [-]
This is more like a short artistic non-rhyming text, but here goes
Be you serial killer, ascetic, hedonist, philantrophist or a misanthrope
Death will swallow you whole and you will be no more
Even in time, the atoms you consist of
will be no more.
So why
why persist in follies of murder, honour and shame
when you are mere matter, on a globe, in the middle of nowhere
So why not do what's subjectively good for you and your kin
and do something creative

I made this up right now so it may be ass but it encapsulates my feelings on certain things very well
#5048 to #5045 - haroldsaxon
Reply 0
(11/07/2015) [-]
I can't provide one, sadly. However, I did write one in high school I got top grade on.


If you're fishing for tips, or ways to format I can give you some tips. You want to talk about the poem itself, then pretty directly what it means, followed by deeper meanings, relations, or simply messages, then you want to end with something.


For instance: I wrote about The Tyger by William Blake published in 1794. The poem is about good and evil which is comon of the time period, yada yada. Poem consists of this and that.

In this specific case 2 important points is the change in words in the first and last paragraph. The author changed the word could for dare. The 2nd point was that god created both lamb and tiger.
#5041 - haroldsaxon
Reply 0
(11/04/2015) [-]
Can someone integrate sqrt(arctan(x)/(1+x^2)) for me?
#5043 to #5041 - smudgiemuffins
Reply 0
(11/06/2015) [-]
Might not have an elementary antiderivative.

Are you sure you didn't mean sqrt(arctan(x)) / (1+x^2)? Because that is (2/3)(arctan(x))^(3/2)
#5027 - littlefish
Reply 0
(11/01/2015) [-]
Anyone have windows 10? I'm really considering upgrading from win 8... Any mayor cons to it?
#5047 to #5027 - removekimchi
Reply 0
(11/06/2015) [-]
crashes alot
#5042 to #5027 - SirMartin
Reply 0
(11/05/2015) [-]
the only true issues I have with Win10 is that I have a norwegian verison. Meaning that I can't use the voice command thing
#5036 to #5027 - prycebear
Reply 0
(11/03/2015) [-]
Feels a hell of a lot slower and is gimmicky af, I like the layout more than 8 and thats it.
#5022 - Residentpudding
Reply +1
(11/01/2015) [-]
Does anyone have a link to a good website or any good videos to help me study physics? I have an exam coming up, I could use the help.
#5024 to #5022 - zonetransferrer
Reply 0
(11/01/2015) [-]
dumbass tell us what u need for exam we will help u
#5026 to #5024 - Residentpudding
Reply 0
(11/01/2015) [-]
>>#5025,

Rude
#5023 to #5022 - ingloriousgamer
Reply 0
(11/01/2015) [-]
whats on the exam?
#5025 to #5023 - Residentpudding
Reply 0
(11/01/2015) [-]
Mostly angular momentum, angular velocity, and rotational energy.
#5031 to #5028 - Residentpudding
Reply +1
(11/02/2015) [-]
Thanks boss. I read my textbook last time and I walked into class feeling confident as fuck. I left feeling like a loser...
#5037 to #5031 - xsnowshark
Reply +1
(11/04/2015) [-]
Hyperphysics is a pretty good site, too.
#5019 - ciaphascain
Reply -1
(10/31/2015) [-]
Science and Religion are the same thing.
#5018 - cloakndagger
Reply +2
(10/30/2015) [-]
Science question from an uneducated loser.

I had this thought here, and I'm wondering if it would work like this or not:
So, imagine there's a man that can run at exactly the speed of sound. Heavy footsteps making a lot of noise. Running in a straight line from point A to point B. In the travel time between point A to point B, would the sound of the footsteps build into a single monstrous roar that would be unleashed at point B, primarily in the direction of travel? Or is that not how it works and I'm just retarded?
#5040 to #5018 - xsnowshark
Reply 0
(11/04/2015) [-]
The sound of the footsteps would not be additive, but a person running at sonic (or supersonic) speeds would form a shock wave similar to the one I posted below. That shock wave would probably damage windows pretty easily.
#5030 to #5018 - bonerifficslinky
Reply 0
(11/02/2015) [-]
That's exactly what breaking the sound barrier is. the sound waves are in fact compressed right in front of whatever is making them. And yes, it does have a massive shockwave to it. Shockwaves are essentially just sound, a lot of it.
#5039 to #5030 - xsnowshark
Reply +1
(11/04/2015) [-]
Actually what you see in the picture on the far right is a shock cone created by a craft that is traveling at transonic speed. The shock cone is formed from a very large drop in temperature and pressure, which condenses the water in the air.

An actual shock wave (normal/oblique/etc.) cannot be seen without the aid of Schlieren imaging (pictured below), and has been measured having a thickness of 200nm. The wave itself is just a boundary where the gas properties change very abruptly. The sound you hear is the leftovers, for lack of a better word, of the shock after it does work on it's surroundings.

The image to the left shows a bow shock forming in front of the test article, and then reflecting oblique shocks downstream.
#5038 to #5030 - xsnowshark
0
has deleted their comment [-]
#5032 to #5030 - cloakndagger
Reply 0
(11/02/2015) [-]
Sweet. I was just thinking back to one time in my hometown during a 4th of July parade, a fly-over happened too low and too fast and shattered half the windows in the town. I'm the type that likes to think about comic book science and shit like that, so I just sort of applied that same thinking to a sort of superpower, and wondered if it wasn't completely implausible. Got to talking to some friends, and was curious if the shock unleashed from something like that would be enough to do major damage to things besides windows.
#5017 - gayboard
Reply +1
(10/30/2015) [-]
When you turn off the lights, where does the light go?
#5034 to #5017 - Sethorein
Reply 0
(11/03/2015) [-]
Away very quickly.
#5021 to #5017 - ciaphascain
Reply +1
(10/31/2015) [-]
It's absorbed by objects.
#5016 - icefried
Reply +1
(10/29/2015) [-]
So i just watched James May's video about what happens when a star dies, and there's a part that really messed me up.
When the largest stars die the leftover core, which can be twice the mass of the sun or more, condenses into an infinitely small point called a singularity which is possibly smaller than an atom.

That... that can't be right. How can matter be smaller than the stuff that it's made of. It's like building a tiny thumb-sized house out of a thousand regular bricks.
#5089 to #5016 - Vanpy ONLINE
Reply 0
(11/18/2015) [-]
I used to think about this stuff about 5 years or so ago. I kept me up at night because you might go to bed one day and won't wake up ever again because the world's been sucked in by a black hole. (I'm not talking about our sun turning into a black hole)
#5020 to #5016 - ciaphascain
Reply 0
(10/31/2015) [-]
It's theorized that a singularity(black hole) punches a hole through the fabric of space/time.
#5015 - theplanetearth
Reply +1
(10/28/2015) [-]
Has the frequency of flu outbreaks increased over time? I'm not talking about recent flu outbreaks. How far back can we go on tracking the flu? Have flu outbreaks only gotten worse with travel from continent to continent getting faster?
#5013 - karlKroenen
Reply +1
(10/25/2015) [-]
"Numbers do not lie. Politics and poetry, promises, these are lies. Numbers are as close as we get to the handwriting of god."
#5090 to #5013 - Vanpy ONLINE
Reply 0
(11/18/2015) [-]
Well, there's no reason to live to record, but to live to live. Try living an all mathematical life, and tell me how it goes.
#5091 to #5090 - karlKroenen
Reply 0
(11/18/2015) [-]
The quote doesn't reference just simply recording numbers and charting. Math is in everything and when you truly understand it you see the world in a different, more calculated, yet no less beautiful way. For example we can see the pythagorean theorem in every shell in the ocean, in every growing flower, in every wave. Understanding how music is created and reaches your ears is math, understanding why something happens and why something is, and being able to represent this and understand this in numbers and calculations is beautiful. The world is in math, and math is in everything. Take Pi for example: Pi is an infinite, nonrepeating (sic) decimal - meaning that every possible number combination exists somewhere in pi. Converted into ASCII text, somewhere in that infinite string of digits is the name of every person you will ever love, the date, time and manner of your death, and the answers to all the great questions of the universe. Those who can see the world in formulas in addition to their own eyes, and reach a small understanding of how this life works, are living a better life. I am living a mathematical life, and i'm telling you that it's immaculate.
#5035 to #5013 - Sethorein
Reply +1
(11/03/2015) [-]
A pity humans are recording the numbers.
#5012 - nerfhead
Reply +1
(10/25/2015) [-]
national geographic channel is doing a brain surgery live on tv tonight at 9 pm (us eastern time). anyone going to watch?
#5009 - balor
Reply +1
(10/25/2015) [-]