+Field theory describes how physical quantities, or "fields," permeate space and time. These fields assign a value to every point, governing interactions and phenomena, from [Electromagnetism](/wiki/Electromagnetism) to [Quantum Mechanics](/wiki/Quantum_Mechanics). It provides a framework to understand forces and particles as excitations of these fundamental fields.
+## See also
+- [Physics](/wiki/Physics)
+- [Calculus](/wiki/Calculus)
+- [Particle Physics](/wiki/Particle_Physics)
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