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The meaning of time.

  1. Nov 25, 2012 #1
    If time is relative then what does it mean when they say the universe is 13.75 billion year old?
     
  2. jcsd
  3. Nov 25, 2012 #2

    Drakkith

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    I believe the universe is 13.7 billion years old as per a clock on Earth. A clock at rest with respect to the CMB and away from any major gravitational sources would be SLIGHTLY faster. About 10 years faster by my estimate.
     
  4. Nov 26, 2012 #3
    Same as when we say "my car is 10 years old".
     
  5. Nov 26, 2012 #4
    Drakkith, are you suggesting, that there is absolute space-time FOR? More or less equal to CMB?
    (1 - sqrt(1 - (370/300000)^2)))*13.7*10^9
    10419 years according to me.
     
    Last edited: Nov 26, 2012
  6. Nov 26, 2012 #5

    Drakkith

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    An absolute frame? No. But there is a frame that is at rest with respect to the CMB.
     
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