Absorber Theory of Radiation
April 10, 2011 at 4:19 am
(This post was last modified: April 10, 2011 at 5:05 am by Rayaan.)
This is a theory of radiation put forward by Wheeler and Feynman in 1945 which says that radiation can also flow backward into space in such a manner as to arrive back into the source (or the emitter) if the expansion of the universe begins to reverse. These backward-moving radiation are called "advanced waves" whereas the ordinary radiations are called "retarded waves."
Do any of you physics people know anything about this? Is it really possible that stars can absorb their own light if the universe ever begins to contract?
Edit: Here's a quote from a book entitled "The Mind of God" in relation to this topic:
Do any of you physics people know anything about this? Is it really possible that stars can absorb their own light if the universe ever begins to contract?
Edit: Here's a quote from a book entitled "The Mind of God" in relation to this topic:
Quote:We never observe organized patterns of radio waves coming from the edges of the universe and converging onto radio antennae. (The technical term for outflowing waves is "retarded," whereas outflowing waves are "advanced"). If, however, the arrow of time were to reverse in the contracting phase of the universe, then the direction of radio-wave motion would also have to reverse - retarded waves would be replaced by advanced waves. In the context of Wheeler’s 'turning of the tide', this would suggest that close to the big bang all radio waves would be retarded; then, as the maximum expansion was approached, so increasing amounts of advanced waves would occur. At maximum, there would be equal advanced and retarded waves, whereas during the contracting phase advanced waves would dominate. (Davies, 54).