Cap'n Refsmmat Posted February 1, 2004 Share Posted February 1, 2004 In Discover Magazine, April 2003 (I know it's old, I just now heard about it) there is an article about Joao Magueijo. Aparrently, he came up with the theory that the speed of light hasn't stayed the same over time. It also says that energy can be created and destroyed spontaneously. According to him, it would solve a few of the puzzles of cosmology. The first is how the universe (at the largest scale) appears the same (the galaxies are in a pattern). Because it is believed gravity travels at the speed of light, if the speed of light changed, it could "connect" the universe and let gravity move things into the pattern, except a lot faster. The second is that cosmologists say that the universe is "flat", or poised between eternal expansion and imminent implosion. Less matter, and it expands rapidly until we can't see anything, and more matter would cause it to collapse. Because with this theory energy is created and destroyed, (and space-time bends because of mass and energy) it woul prevent the universe from expanding or shrinking catastrophically (when it gets too big, more energy, thus it slows down and regulates itself). If the universe has too much matter, it's overabundance turns to energy, which simply vanishes. Voila, it's not too big! Magueijo also notes that it only did this in the early universe. To prove the theory, he looked at 68 quasars up to 12 billion light years away. During the light's journey to Earth, it passed through clouds of "intergalactic gas". In doing so, the light's spectra changed, depending on what was in the clouds. But in some clouds, the variation was smaller than expected by one in 100000. So 12 billion years ago the light was moving faster than it is now. Unfortunately for him, the clouds of gas may have had different compositions and densities. He has started an experiment on Earth that will be finished in about a year. What do you think? Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 1, 2004 Author Share Posted February 1, 2004 I personally want to wait until he can prove it. It breaks so many laws of physics, and thermodynamics, I want it proved. It may explain things, but I find that I can't believe it. Link to comment Share on other sites More sharing options...
-Demosthenes- Posted February 1, 2004 Share Posted February 1, 2004 Yes and no. If the whole universe and everything in it is expanding then light would take longer to get places. So it really is going slower, or just that the universe is expanding, but they are both the same thing really because of what I said above. Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 1, 2004 Author Share Posted February 1, 2004 It is proven the universe is expanding, let's not get into that. If it got slower it would not cause red shift. Link to comment Share on other sites More sharing options...
-Demosthenes- Posted February 1, 2004 Share Posted February 1, 2004 Red shift? Link to comment Share on other sites More sharing options...
bt redliner Posted February 1, 2004 Share Posted February 1, 2004 -Demosthenes- said in post # :Yes and no. If the whole universe and everything in it is expanding then light would take longer to get places. So it really is going slower, or just that the universe is expanding, but they are both the same thing really because of what I said above. The universe is infinite, it has no ending. And, light speed is infinite, it is impossible to calculate. Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 1, 2004 Author Share Posted February 1, 2004 If something is moving away from you, it will change the frequency of the light and make it reddish. If it is coming towards you, it will become bluish. That is also called the doppler effect. Link to comment Share on other sites More sharing options...
-Demosthenes- Posted February 1, 2004 Share Posted February 1, 2004 oh I learned about that, I remember now. but how does it relate to the universe expanding? And I don't think that c is infinite at all. Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 1, 2004 Author Share Posted February 1, 2004 It relates because it proves it is expanding. C is not infinite, it is 186,000 miles per second. Link to comment Share on other sites More sharing options...
-Demosthenes- Posted February 1, 2004 Share Posted February 1, 2004 bt redliner said in post #6 : The universe is infinite, it has no ending. And, light speed is infinite, it is impossible to calculate. He said it was infinite. Well about red stuff whatever, how does it prove the expansion of the universe?? Link to comment Share on other sites More sharing options...
bt redliner Posted February 1, 2004 Share Posted February 1, 2004 If the universe is expanding at the same as C, then it'll never stop meaning it has no ending Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 1, 2004 Author Share Posted February 1, 2004 bt redliner said in post # : The universe is infinite, it has no ending. And, light speed is infinite, it is impossible to calculate. Light speed IS NOT infinite, its 186,000 miles per sec. Red shift proves other stars are moving away from us, meaning the universe is expanding. Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 1, 2004 Author Share Posted February 1, 2004 bt redliner said in post # :If the universe is expanding at the same as C, then it'll never stop meaning it has no ending Who said it was expanding at c? Link to comment Share on other sites More sharing options...
-Demosthenes- Posted February 1, 2004 Share Posted February 1, 2004 But light speed isn't infinite. Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 1, 2004 Author Share Posted February 1, 2004 I know! Link to comment Share on other sites More sharing options...
-Demosthenes- Posted February 1, 2004 Share Posted February 1, 2004 I was writing it when you posted your posts, so the last one I read was post #11. Link to comment Share on other sites More sharing options...
-Demosthenes- Posted February 1, 2004 Share Posted February 1, 2004 I take a while to write Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 1, 2004 Author Share Posted February 1, 2004 I write at 31 words a minute. Anyway, if light speed was infinite, it would be instantaneous. But, of course, it isn't, as has been proved zillions of times. Link to comment Share on other sites More sharing options...
-Demosthenes- Posted February 1, 2004 Share Posted February 1, 2004 I totaly agree, It couldn't or we couldn't see. Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 1, 2004 Author Share Posted February 1, 2004 Why couldn't we see? Link to comment Share on other sites More sharing options...
-Demosthenes- Posted February 1, 2004 Share Posted February 1, 2004 To see we need light to reflect on someting and then to get to aur eye and we see...I guess we could see, wow. Nevermind. Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 2, 2004 Author Share Posted February 2, 2004 It would reflect, so how'd you get that idea? Link to comment Share on other sites More sharing options...
-Demosthenes- Posted February 2, 2004 Share Posted February 2, 2004 I thought that anywhere it was going it would already be, so there would be no light here, but where it was going, which is nowhere. Very confusing. Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 2, 2004 Author Share Posted February 2, 2004 Yes, confusing. I just want to see if you thought the speed of light could change. Link to comment Share on other sites More sharing options...
bt redliner Posted February 2, 2004 Share Posted February 2, 2004 -Demosthenes- said in post # :I thought that anywhere it was going it would already be, so there would be no light here, but where it was going, which is nowhere. Very confusing. Now, you got me confuse. Link to comment Share on other sites More sharing options...
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