27
edits
Changes
Jump to navigation
Jump to search
Line 73:
Line 73: − +
no edit summary
::::OK, if you understand it, then it should be simple to resolve our argument. Simply integrate the time dt using GR equations as a light ray travels from a distant galaxy (say, z=5) to Earth (z=0). If you're right, then the total time should be less than 6000 years. If I'm right, then the total time should be on the order of 10s of billions of years. It'll all come down to two simple numbers. I will do the same if you like. I await your (numerical) response.--[[User:Mackronking2|Mackronking2]] 08:20, 5 May 2007 (EDT)
::::OK, if you understand it, then it should be simple to resolve our argument. Simply integrate the time dt using GR equations as a light ray travels from a distant galaxy (say, z=5) to Earth (z=0). If you're right, then the total time should be less than 6000 years. If I'm right, then the total time should be on the order of 10s of billions of years. It'll all come down to two simple numbers. I will do the same if you like. I await your (numerical) response.--[[User:Mackronking2|Mackronking2]] 08:20, 5 May 2007 (EDT)
:::::I understand the concept, not the maths, unfortunately. But even so I can question yours. 10s of billions of years is what the Big Bang theory would give, which assumes an unbounded universe. But Humphrey's idea is for a bounded universe, and an initially-small one. Even without doing the maths it's clear that the time would not be 10s of billions of years. [[User:Philip J. Rayment|Philip J. Rayment]] 09:22, 5 May 2007 (EDT)
:::::I understand the concept, not the maths, unfortunately. But even so I can question yours. 10s of billions of years is what the Big Bang theory would give, which assumes an unbounded universe. But Humphrey's idea is for a bounded universe, and an initially-small one. Even without doing the maths it's clear that the time would not be 10s of billions of years. [[User:Philip J. Rayment|Philip J. Rayment]] 09:22, 5 May 2007 (EDT)
:::::: That doesn't make sense. Time dilation is a local effect. It depends on the gravity at the point in space that the light is propagating at. It has nothing to do with a bounded or unbounded universe, only the amount of gravity along the light propagation line. Again, simple integrating the GR equations along such a path should give the answer. Why doesn't Humphrey just do the math? The math is done in many GR textbooks and the answer is on the order of billions of years.--[[User:Mackronking2|Mackronking2]] 09:29, 5 May 2007 (EDT)
That article oly quotes Dr. humprey (who i Dr. humprey?), why it didn't quoted different sources; like stephen hawkings?
That article oly quotes Dr. humprey (who i Dr. humprey?), why it didn't quoted different sources; like stephen hawkings?