Notices
Results 1 to 2 of 2

Thread: What is Einstein's frame of reference?

  1. #1 What is Einstein's frame of reference? 
    Forum Professor
    Join Date
    Feb 2009
    Posts
    1,767
    Einstein looked at two objects ,equipped with clocks moving relatively to one another and calculated that each would "see" the other as moving more slowly than their separation speed by a degree that is related to the speed of light (the Lorentz factor).

    This calculation has been shown to be correct and is used to underpin satellite technology and even the recently observed gravitational waves I think.

    But I have this question :Is Einstein (ie the theory) taking a "bird's eye" view on the two relatively moving objects or is that just a figurative way of thinking about the remove he seems to have been able to take from the scenario?

    Can the logical process itself be considered as a separate (non physical) frame of reference or does it have to imagine itself as in one particular frame of reference ,then another and draw inferences in some kind of a logical framework?


    Reply With Quote  
     

  2.  
     

  3. #2  
    Forum Isotope
    Join Date
    Feb 2012
    Location
    Western US
    Posts
    2,638
    Quote Originally Posted by geordief View Post
    Einstein looked at two objects ,equipped with clocks moving relatively to one another and calculated that each would "see" the other as moving more slowly than their separation speed by a degree that is related to the speed of light (the Lorentz factor).

    This calculation has been shown to be correct and is used to underpin satellite technology and even the recently observed gravitational waves I think.

    But I have this question :Is Einstein (ie the theory) taking a "bird's eye" view on the two relatively moving objects or is that just a figurative way of thinking about the remove he seems to have been able to take from the scenario?
    The whole point of relativity is that there is no bird's-eye view. At no step in a given calculation does one use "global" knowledge. Calculations take into account only local information, from which one may deduce what the other frame will see.

    Can the logical process itself be considered as a separate (non physical) frame of reference or does it have to imagine itself as in one particular frame of reference ,then another and draw inferences in some kind of a logical framework?
    Processes aren't frames at all. As with other logical systems, SR starts with some axioms, and consequences flow thereform.


    Reply With Quote  
     

Similar Threads

  1. An absolute frame of reference
    By whizkid in forum Personal Theories & Alternative Ideas
    Replies: 148
    Last Post: August 24th, 2014, 11:55 AM
  2. Using the CMBR as a frame of reference.
    By kojax in forum Astronomy & Cosmology
    Replies: 10
    Last Post: September 11th, 2012, 04:12 PM
  3. Replies: 9
    Last Post: October 16th, 2010, 03:37 AM
  4. Replies: 7
    Last Post: December 13th, 2006, 02:10 PM
  5. frame of reference.
    By wallaby in forum Physics
    Replies: 1
    Last Post: February 17th, 2006, 12:42 PM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •