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The importance of a field?

  1. Mar 4, 2014 #1
  2. jcsd
  3. Mar 4, 2014 #2
    The explanation seems quite clear to me. Why don't you be me specific about what you don't understand?
  4. Mar 4, 2014 #3
    "But also have an independent physical reality because they carry energy."
    What is meant by this part specifically.
  5. Mar 4, 2014 #4


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    Science Advisor

    It means fields themselves carry energy (and momentum and angular momentum). It's quite literal.
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