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edpell
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If the universe is finite and unbounded why can not we think of the frame that sits with it's origin at the center of the 4-D sphere as a preferred frame? The preferred frame?
edpell said:If the universe is finite and unbounded why can not we think of the frame that sits with it's origin at the center of the 4-D sphere as a preferred frame? The preferred frame?
bcrowell said:the frame in which the average Doppler shift of the CMB vanishes
The preferred frame refers to a hypothetical frame of reference that is considered to be stationary and absolute in the universe. It is used as a basis for measuring and interpreting the motion of objects in space.
The preferred frame is a concept that is rejected by the theory of relativity. According to the theory, all frames of reference are equally valid and there is no absolute frame of reference that can be considered as preferred.
The existence of a preferred frame would contradict the principles of relativity and would require a complete overhaul of our current understanding of the laws of physics. It would also challenge our understanding of the structure and dynamics of the universe.
Scientists study the concept of the preferred frame through various experiments and observations. These include tests of the constancy of the speed of light in different frames of reference and observations of the Cosmic Microwave Background radiation.
If a preferred frame is proven to exist, it would have far-reaching consequences for our understanding of the universe and would require a major revision of our current theories. On the other hand, if it is disproven, it would further strengthen the principles of relativity and confirm our current understanding of the universe.