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Golan Cinquanteneuf Gallente Carthage.	Posted - 2008.12.30 20:56:00 - [1] In Eve we deal in AU's per second. But I started thinking about recent developments in cosmology. We know in that our observable universe, space (i.e. the universe itself) is expanding. In the 1990's we discovered that the rate of expansion is not slowing but is in fact increasing. It occured to me that these observations take into account that the speed of light is a constant. But has anyone checked the speed of light lately? And if they have, what was the methodology? And what are the consequences if the speed of light is changing. This probably belongs in OOPE but somehow that didn't seem like the appropriate place.
ouroboros trading Gallente Medics On Fire	Posted - 2008.12.30 20:59:00 - [2] that's the speed of light in a vacuum iirc, speed of light is not a constant :P 347367? That's Numberwang!
Khemul Zula Amarr Keisen Trade League	Posted - 2008.12.30 20:59:00 - [3] Edited by: Khemul Zula on 30/12/2008 21:01:11 I just tested the speed of light with a lamp and a stopwatch. No observable change. ------ I can picture in my mind a world without war, a world without hate. And I can picture us attacking that world, because they'd never expect it.
Dirk Magnum Royal Hiigaran Navy	Posted - 2008.12.30 21:02:00 - [4] Edited by: Dirk Magnum on 30/12/2008 21:02:21 I believe the speed of light in a vacuum as it's understood today was measured in the 1950's after about a century of other experiments that had come reasonably close to the ~300,000 km/s measurement. Originally by: Khemul Zula I just tested the speed of light with a lamp and a stopwatch. No observable change. Also this.
Golan Cinquanteneuf Gallente Carthage.	Posted - 2008.12.30 21:06:00 - [5] Originally by: Khemul Zula Edited by: Khemul Zula on 30/12/2008 21:01:11 I just tested the speed of light with a lamp and a stopwatch. No observable change. Yeah, if you want a job done right, you have to do it yourself.
Jonat Eken T.A.N.S.T.A.A.F.L.	Posted - 2008.12.30 21:06:00 - [6] Originally by: Khemul Zula Edited by: Khemul Zula on 30/12/2008 21:01:11 I just tested the speed of light with a lamp and a stopwatch. No observable change. Thanks for the best laugh I've had all week. /thread
Concorduck Gallente	Posted - 2008.12.30 21:14:00 - [7] i was about to write The speed of light in the vacuum of free space is an important physical constant usually denoted by the symbol c0 or simply c. The metre is defined such that the speed of light in free space is exactly 299,792,458 metres per second (m/s). but then # Lightspeed, a space simulation computer game released in 1990 # Lightspeed Media Corporation, a company active in erotic modeling and internet **ography # Power Rangers: Lightspeed Rescue, the eighth Power Rangers television program # Lightspeed Endodontics, a company producing dental equipment that is used to treat diseased dental pulp. # Lightspeed (film), a 2006 science fiction film # Lightspeed, a 2003 puzzle game for Windows # Lightspeed, a space opera role-playing game by Christian Conkle using the Fuzion system # Lightspeed Venture Partners, a venture capital firm # Lightspeed Aviation, a manufacturer of aviation headsets # Lightspeed Consumer Panel, a large, UK-based online market research agency. # Julie Power, a Marvel Comics superhero who goes by the name Lightspeed. ----------------------------------------- Originally by:** Crumplecorn Contact the CSM about it, voting themselves into disbandment wouldn't be pushing the boundaries of absurdity for them.
Cpt Hound Republic Military School	Posted - 2008.12.30 21:17:00 - [8] Originally by: ouroboros trading that's the speed of light in a vacuum iirc, speed of light is not a constant :P Hold on there, the speed of light IS a constant
Avon Caldari Black Nova Corp Band of Brothers	Posted - 2008.12.30 21:20:00 - [9] I tested it and found out that light travels fractionally slower than sound. I got my mate to yell at me when I turned my car headlights on down the street, and accurately measured the time between me turning them on and hearing him yell. The distance was measured by using fixed distance markers (street lights). I also discovered that light can only travel about 330 yards, because past that I couldn't hear my mate informing me that the light had reached him. Science is ace. Eve-Online: The Text Adventure
MooKids Caldari Dark Echo Engineering	Posted - 2008.12.30 21:23:00 - [10] Originally by: Khemul Zula Edited by: Khemul Zula on 30/12/2008 21:01:11 I just tested the speed of light with a lamp and a stopwatch. No observable change. Didn't they do that in an episode of Animaniacs? -------------------------------- CCP can patch away bugs, but they can't patch away stupidity.

Pac SubCom A.W.M	Posted - 2008.12.30 21:26:00 - [11] Originally by: Cpt Hound Originally by: ouroboros trading that's the speed of light in a vacuum iirc, speed of light is not a constant :P Hold on there, the speed of light IS a constant But not while travelling through matter. You can slow it down to walking speed or something if you wish. --------------- ∞ TQFE
Golan Cinquanteneuf Gallente Carthage.	Posted - 2008.12.30 21:27:00 - [12] Originally by: Cpt Hound Originally by: ouroboros trading that's the speed of light in a vacuum iirc, speed of light is not a constant :P Hold on there, the speed of light IS a constant Nope, he's right. The speed of light in a vacuum is constant relative to the observer, but light actually slows in a medium (e.g. water).
Concorduck Gallente	Posted - 2008.12.30 21:27:00 - [13] Originally by: Pac SubCom Originally by: Cpt Hound Originally by: ouroboros trading that's the speed of light in a vacuum iirc, speed of light is not a constant :P Hold on there, the speed of light IS a constant But not while travelling through matter. You can slow it down to walking speed or something if you wish. There is...stuff...that slows down light... ----------------------------------------- Originally by: Crumplecorn Contact the CSM about it, voting themselves into disbandment wouldn't be pushing the boundaries of absurdity for them.
Cpt Hound Republic Military School	Posted - 2008.12.30 21:29:00 - [14] Originally by: Golan Cinquanteneuf Originally by: Cpt Hound Originally by: ouroboros trading that's the speed of light in a vacuum iirc, speed of light is not a constant :P Hold on there, the speed of light IS a constant Nope, he's right. The speed of light in a vacuum is constant relative to the observer, but light actually slows in a medium (e.g. water). Does not matter. The speed of light in medium is also always constant. Speed on light in water is always the same, in Helium gas is always the same and so on. The speed of light IS constant, it only has different speeds in mediums.
Daenes Nague	Posted - 2008.12.30 21:29:00 - [15] Speed of light is constant under all and every circumstances. The Universe makes time and space bend for this law. Light appearing slower in other mediums is caused by microscopic reflexions recently scientists yet again tried the "speed of light changed over time" model. While it cannot be proven wrong yet, there are strong indicators that it is and that the "vacuum energy", einsteins cosmological constant (whats your english word for this) is actually a very good model. I personally believe that our universe is part of a higher dimension or similar which we cannot reach nor sense. In this dimension we expand further and further, but since we cannot sense this dimension it appears all of our space is expanding. Its much like a ant on a expanding baloon, except the ant is 2D. You heard it here first!
Rodj Blake Amarr PIE Inc.	Posted - 2008.12.30 21:38:00 - [16] Originally by: Avon I tested it and found out that light travels fractionally slower than sound. I got my mate to yell at me when I turned my car headlights on down the street, and accurately measured the time between me turning them on and hearing him yell. The distance was measured by using fixed distance markers (street lights). I also discovered that light can only travel about 330 yards, because past that I couldn't hear my mate informing me that the light had reached him. Science is ace. You win today's forums Dulce et decorum est pro imperium mori.
Alatari Gallente Winterdawn	Posted - 2008.12.30 21:55:00 - [17] Light travels faster than sound. That's why some people appear bright until you hear them speak. -- You can't do that with a Planet.
Avon Caldari Black Nova Corp Band of Brothers	Posted - 2008.12.30 22:00:00 - [18] Darkness is faster than light. Eve-Online: The Text Adventure
Blastil	Posted - 2008.12.30 22:01:00 - [19] Edited by: Blastil on 30/12/2008 22:02:25 Originally by: Rodj Blake You win today's forums You forgot to tell him that today's prize is a fully fitted Velator and a gratuity gift of tritanium.
Sniper Wolf18 Gallente Apocalypse Ponies	Posted - 2008.12.30 22:08:00 - [20] Originally by: Cpt Hound Does not matter. The speed of light in medium is also always constant. Speed on light in water is always the same, in Helium gas is always the same and so on. The speed of light IS constant, it only has different speeds in mediums. Wrong, light will travel slower in 100atm of air at room temperature than it will in 0.2 atm of air at room temp and seriously! Thanks for just reading my sig!

Cpt Hound Republic Military School	Posted - 2008.12.30 22:17:00 - [21] Originally by: Sniper Wolf18 Originally by: Cpt Hound Does not matter. The speed of light in medium is also always constant. Speed on light in water is always the same, in Helium gas is always the same and so on. The speed of light IS constant, it only has different speeds in mediums. Wrong, light will travel slower in 100atm of air at room temperature than it will in 0.2 atm of air at room temp Yeah? You're talking about two different kinds of medium, the same point still stands. The speed of light IS constant. The only thing that changes is the medium. You can't slow down the speed of light neither can you increase it. People who say they have slowed down the speed of light have only passed the light through a medium where the speed of light is really slow. Nothing groundbreaking stuff. The quantum theory of atoms tells us that frequencies and wavelengths depend chiefly on the values of Planck's constant, the electronic charge, and the masses of the electron and nucleons, as well as on the speed of light. By eliminating the dimensions of units from the parameters we can derive a few dimensionless quantities, such as the fine structure constant and the electron to proton mass ratio. These values are independent of the definition of the units, so it makes much more sense to ask whether these values change. If they did change, it would not just be the speed of light which was affected. The whole of chemistry is dependent on their values, and significant changes would alter the chemical and mechanical properties of all substances. Furthermore, the speed of light itself would change by different amounts according to which definition of units you used. In that case, it would make more sense to attribute the changes to variations in the charge on the electron or the particle masses than to changes in the speed of light.
Karentaki Gallente Fighting While Intoxicated Intrepid Crossing	Posted - 2008.12.30 22:32:00 - [22] I'm pretty sure if the universal constant 'c' (aka the speed of light) changed, than nobody would be left to measure the new value. The existence of any kind of normal matter is highly dependant on the universal constants remaining within VERY narrow bounds. some theories suggest that c was different at some point in the very early universe, but before that point there was no real matter to speak of. Quote: EVE is like a sandbox with landmines. Deal with it.
Dr Slaughter Minmatar Rabies Inc.	Posted - 2008.12.30 22:33:00 - [23] Originally by: ouroboros trading that's the speed of light in a vacuum iirc, speed of light is not a constant :P Well.. it's constantly less than or equal to c ~~~~ There is no parody in this thread. Honest.
AkRoYeR Amarr	Posted - 2008.12.30 22:35:00 - [24] Originally by: Golan Cinquanteneuf In Eve we deal in AU's per second. But I started thinking about recent developments in cosmology. We know in that our observable universe, space (i.e. the universe itself) is expanding. In the 1990's we discovered that the rate of expansion is not slowing but is in fact increasing. It occured to me that these observations take into account that the speed of light is a constant. But has anyone checked the speed of light lately? And if they have, what was the methodology? And what are the consequences if the speed of light is changing. This probably belongs in OOPE but somehow that didn't seem like the appropriate place. OP=Fail. If anything attains the speed of light with mass, it becomes infinite, therefore it is everywhere at once, so how can something that is everywhere at the same time travel if it's already where it was traveling to?
Stuart Price Caldari The Black Rabbits The Gurlstas Associates	Posted - 2008.12.30 22:39:00 - [25] Light is also affected by Gravity. You can see this effect in pictured of Black Holes, where light appears to be distorted around the singularity. In fact, light is pulled INTO the centre, where it cannot escape, if it gets too close. Interestingly, the gravitational effect of a Black Hole is also equal to that of the star which formed it. The only difference being that the mass of the star itself is no longer acting upon anything where the body of the star would have been. So what the hell happens to all the crap that end up in the middle of the bloody thing? Does it eventually explode? Ignite into another star? End up looking like the middle of London? Everything beyond what I currently understand is expressed in the kind of maths that causes Steven Hawking to get aroused. Needless to say it's a bit beyond me :( All I know is that while the speed of light is the closest measurable thing we have to a constant, it isn't actually a constant in the true meaning of the word. Putting the 'irate' into 'Pirate'
rValdez5987 Amarr 32nd Amarrian Imperial Navy Regiment.	Posted - 2008.12.30 22:45:00 - [26] Originally by: Avon I tested it and found out that light travels fractionally slower than sound. I got my mate to yell at me when I turned my car headlights on down the street, and accurately measured the time between me turning them on and hearing him yell. The distance was measured by using fixed distance markers (street lights). I also discovered that light can only travel about 330 yards, because past that I couldn't hear my mate informing me that the light had reached him. Science is ace. omg I lol'd so hard...
dr doooo	Posted - 2008.12.30 22:45:00 - [27] Originally by: Rodj Blake Originally by: Avon I tested it and found out that light travels fractionally slower than sound. I got my mate to yell at me when I turned my car headlights on down the street, and accurately measured the time between me turning them on and hearing him yell. The distance was measured by using fixed distance markers (street lights). I also discovered that light can only travel about 330 yards, because past that I couldn't hear my mate informing me that the light had reached him. Science is ace. You win today's forums Is neck and neck up to the finish line, but 'First!' wins by a hairsbreadth over 'You win today's forums' .
Cpt Hound Republic Military School	Posted - 2008.12.30 22:52:00 - [28] Originally by: Stuart Price All I know is that while the speed of light is the closest measurable thing we have to a constant, it isn't actually a constant in the true meaning of the word. No, that is simply wrong. The definition of the speed of light is based on around other natural constants. It is defined as exactly 299,792,458 meters per second there is no standard uncertainty or relative standard uncertainty, it simply is constant.
Manipulator General o.0	Posted - 2008.12.30 23:16:00 - [29] Originally by: ouroboros trading that's the speed of light in a vacuum iirc, speed of light is not a constant :P omg, someone more anal than me. \o/
Manipulator General o.0	Posted - 2008.12.30 23:17:00 - [30] Edited by: Manipulator General on 30/12/2008 23:19:42 Originally by: Cpt Hound Originally by: ouroboros trading that's the speed of light in a vacuum iirc, speed of light is not a constant :P Hold on there, the speed of light IS a constant Erm, no it isn't. And the refractive index is your friend.



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