Changes

     Example 2: Relativity has been verified in at least two different ways:

     Example 2: Relativity has been verified in at least two different ways:

     [[http://www.answers.com/topic/hafele-keating-experiment| Hafele-Keating experiment and later  

     [[http://www.answers.com/topic/hafele-keating-experiment| Hafele-Keating experiment and later ]]

    experiments with more accurate clocks]]

 

experiments with more accurate clocks

     [http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html| GPS and relativity]

     [http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html| GPS and relativity]