Changes

::We should discuss the "classical" field theories first—Newtonian gravity and Faraday/Maxwell electrodynamics.  They give a clear flavor of what a "field" might be.  (Though Newton had never heard of fields; his gravity became a "gravitational field" centuries later.)  Then we should mention that General Relativity is also a field theory of sorts, but it involves tensor fields that are far beyond the scope of CP.  (Alas, GR is just too hairy for non-experts, and we can't do anything about it.)  Only then should we go into quantum field theories.  By the way, gravitons relate to quantum field theories, and were not in the original GR.  I believe they arise from Yang-Mills gauge theories, which were invented in 1954, long after GR (1915).  [[User:PatrickD|PatrickD]] 22:47, 1 November 2009 (EST)

::We should discuss the "classical" field theories first—Newtonian gravity and Faraday/Maxwell electrodynamics.  They give a clear flavor of what a "field" might be.  (Though Newton had never heard of fields; his gravity became a "gravitational field" centuries later.)  Then we should mention that General Relativity is also a field theory of sorts, but it involves tensor fields that are far beyond the scope of CP.  (Alas, GR is just too hairy for non-experts, and we can't do anything about it.)  Only then should we go into quantum field theories.  By the way, gravitons relate to quantum field theories, and were not in the original GR.  I believe they arise from Yang-Mills gauge theories, which were invented in 1954, long after GR (1915).  [[User:PatrickD|PatrickD]] 22:47, 1 November 2009 (EST)