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Gravity ?

  1. Jul 21, 2010 #1
    Can we turn the energy of a G field into mass ?
     
  2. jcsd
  3. Jul 21, 2010 #2

    K^2

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    Energy of a gravitational field already has mass. Any energy has mass.
     
  4. Jul 21, 2010 #3
    I figured you would be the first to respond , so are you telling me there is no difference
    between energy and mass , If the G field has mass then how does it travel at c .
     
    Last edited: Jul 21, 2010
  5. Jul 21, 2010 #4

    K^2

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    Fields don't travel.

    And only objects with zero rest-mass can travel at c. They still have an inertial mass and gravitational mass.
     
  6. Jul 22, 2010 #5
    to clear up my misconception about fields , when i create a B field by turning on a switch
    to a coil of wire , how does the presence of the field get to a point away from the coil so that something far away can feel its presence .
     
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