Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Field_(physics)> ?p ?o }
- Field_(physics) abstract "In physics, a field is a physical quantity that has a value for each point in space and time. For example, on a weather map, the surface wind velocity is described by assigning a vector to each point on a map. Each vector represents the speed and direction of the movement of air at that point. As another example, an electric field can be thought of as a "condition in space" emanating from an electric charge and extending throughout the whole of space. When a test electric charge is placed in this electric field, the particle accelerates due to a force. Physicists have found the notion of a field to be of such practical utility for the analysis of forces that they have come to think of a force as due to a field.In the modern framework of the quantum theory of fields, even without referring to a test particle, a field occupies space, contains energy, and its presence eliminates a true vacuum. This lead physicists to consider electromagnetic fields to be a physical entity, making the field concept a supporting paradigm of the edifice of modern physics. "The fact that the electromagnetic field can possess momentum and energy makes it very real... a particle makes a field, and a field acts on another particle, and the field has such familiar properties as energy content and momentum, just as particles can have". In practice, the strength of most fields has been found to diminish with distance to the point of being undetectable. For instance the strength of many relevant classical fields, such as the gravitational field in Newton's theory of gravity or the electrostatic field in classical electromagnetism, is inversely proportional to the square of the distance from the source (i.e. they follow the Gauss's law). One consequence is that the Earth's gravitational field quickly becomes undetectable on cosmic scales.A field can be classified as a scalar field, a vector field, a spinor field or a tensor field according to whether the represented physical quantity is a scalar, a vector, a spinor or a tensor, respectively. A field has a unique tensorial character in every point where it is defined: i.e. a field cannot be a scalar field somewhere and a vector field somewhere else. For example, the Newtonian gravitational field is a vector field: specifying its value at a point in spacetime requires three numbers, the components of the gravitational field vector at that point. Moreover, within each category (scalar, vector, tensor), a field can be either a classical field or a quantum field, depending on whether it is characterized by numbers or quantum operators respectively. In fact in this theory an equivalent representation of field is a field particle, namely a boson.".
- Field_(physics) thumbnail VFPt_charges_plus_minus_thumb.svg?width=300.
- Field_(physics) wikiPageExternalLink Real%20talk%3A%20Everything%20is%20made%20of%20fields.pdf.
- Field_(physics) wikiPageExternalLink index.html.
- Field_(physics) wikiPageID "26998617".
- Field_(physics) wikiPageLength "32344".
- Field_(physics) wikiPageOutDegree "225".
- Field_(physics) wikiPageRevisionID "677508541".
- Field_(physics) wikiPageWikiLink Accuracy_and_precision.
- Field_(physics) wikiPageWikiLink Action_(physics).
- Field_(physics) wikiPageWikiLink Action_at_a_distance.
- Field_(physics) wikiPageWikiLink Action_at_a_distance_(physics).
- Field_(physics) wikiPageWikiLink Albert_Einstein.
- Field_(physics) wikiPageWikiLink André-Marie_Ampère.
- Field_(physics) wikiPageWikiLink Anisotropic_diffusion.
- Field_(physics) wikiPageWikiLink Atom.
- Field_(physics) wikiPageWikiLink BRST_formalism.
- Field_(physics) wikiPageWikiLink BRST_quantization.
- Field_(physics) wikiPageWikiLink Biot–Savart_law.
- Field_(physics) wikiPageWikiLink Boson.
- Field_(physics) wikiPageWikiLink Category:Concepts_in_physics.
- Field_(physics) wikiPageWikiLink Category:Theoretical_physics.
- Field_(physics) wikiPageWikiLink Causality.
- Field_(physics) wikiPageWikiLink Charles-Augustin_de_Coulomb.
- Field_(physics) wikiPageWikiLink Classical_electrodynamics.
- Field_(physics) wikiPageWikiLink Classical_electromagnetism.
- Field_(physics) wikiPageWikiLink Classical_field_theory.
- Field_(physics) wikiPageWikiLink Classical_mechanics.
- Field_(physics) wikiPageWikiLink Color_charge.
- Field_(physics) wikiPageWikiLink Color_confinement.
- Field_(physics) wikiPageWikiLink Complex_fluid.
- Field_(physics) wikiPageWikiLink Conservative_field.
- Field_(physics) wikiPageWikiLink Conservative_vector_field.
- Field_(physics) wikiPageWikiLink Continuum_mechanics.
- Field_(physics) wikiPageWikiLink Coulombs_law.
- Field_(physics) wikiPageWikiLink Course_of_Theoretical_Physics.
- Field_(physics) wikiPageWikiLink Covariance_and_contravariance_of_vectors.
- Field_(physics) wikiPageWikiLink Covariant_Hamiltonian_field_theory.
- Field_(physics) wikiPageWikiLink Covariant_classical_field_theory.
- Field_(physics) wikiPageWikiLink Data.
- Field_(physics) wikiPageWikiLink Degrees_of_freedom_(physics_and_chemistry).
- Field_(physics) wikiPageWikiLink Differentiable_function.
- Field_(physics) wikiPageWikiLink Diffusion_equation.
- Field_(physics) wikiPageWikiLink Dirac_field.
- Field_(physics) wikiPageWikiLink Dirac_spinor.
- Field_(physics) wikiPageWikiLink Distribution_(mathematics).
- Field_(physics) wikiPageWikiLink Elasticity_(physics).
- Field_(physics) wikiPageWikiLink Elasticity_tensor.
- Field_(physics) wikiPageWikiLink Electric_charge.
- Field_(physics) wikiPageWikiLink Electric_current.
- Field_(physics) wikiPageWikiLink Electric_field.
- Field_(physics) wikiPageWikiLink Electromagnetic_field.
- Field_(physics) wikiPageWikiLink Electromagnetic_radiation.
- Field_(physics) wikiPageWikiLink Electromagnetic_wave.
- Field_(physics) wikiPageWikiLink Electromagnetism.
- Field_(physics) wikiPageWikiLink Electron.
- Field_(physics) wikiPageWikiLink Electrostatic_field.
- Field_(physics) wikiPageWikiLink Electroweak_interaction.
- Field_(physics) wikiPageWikiLink Electroweak_theory.
- Field_(physics) wikiPageWikiLink Encyclopaedia_Britannica.
- Field_(physics) wikiPageWikiLink Encyclopædia_Britannica.
- Field_(physics) wikiPageWikiLink Equivalence_principle.
- Field_(physics) wikiPageWikiLink Euclidean_vector.
- Field_(physics) wikiPageWikiLink Eugene_Wigner.
- Field_(physics) wikiPageWikiLink Evgeny_Lifshitz.
- Field_(physics) wikiPageWikiLink Experiment.
- Field_(physics) wikiPageWikiLink Faddeev–Popov_ghost.
- Field_(physics) wikiPageWikiLink Femtometre.
- Field_(physics) wikiPageWikiLink Fermionic_field.
- Field_(physics) wikiPageWikiLink Fiber_bundle.
- Field_(physics) wikiPageWikiLink Field_(algebra).
- Field_(physics) wikiPageWikiLink Field_(mathematics).
- Field_(physics) wikiPageWikiLink Field_particle.
- Field_(physics) wikiPageWikiLink Field_strength.
- Field_(physics) wikiPageWikiLink Flavour_(particle_physics).
- Field_(physics) wikiPageWikiLink Fluid_dynamics.
- Field_(physics) wikiPageWikiLink Force.
- Field_(physics) wikiPageWikiLink Force_(physics).
- Field_(physics) wikiPageWikiLink Force_carrier.
- Field_(physics) wikiPageWikiLink Fundamental_forces.
- Field_(physics) wikiPageWikiLink Fundamental_interaction.
- Field_(physics) wikiPageWikiLink Gausss_law.
- Field_(physics) wikiPageWikiLink General_relativity.
- Field_(physics) wikiPageWikiLink Generalization_(mathematics).
- Field_(physics) wikiPageWikiLink Generalized_function.
- Field_(physics) wikiPageWikiLink Generalized_functions.
- Field_(physics) wikiPageWikiLink Gluon.
- Field_(physics) wikiPageWikiLink Graded_manifold.
- Field_(physics) wikiPageWikiLink Gradient.
- Field_(physics) wikiPageWikiLink Gravitation.
- Field_(physics) wikiPageWikiLink Gravitational_field.
- Field_(physics) wikiPageWikiLink Gravitational_potential.
- Field_(physics) wikiPageWikiLink Gravity.
- Field_(physics) wikiPageWikiLink Hadron.
- Field_(physics) wikiPageWikiLink Hamiltonian_mechanics.
- Field_(physics) wikiPageWikiLink Heat_equation.
- Field_(physics) wikiPageWikiLink Hookes_law.
- Field_(physics) wikiPageWikiLink Infinity.
- Field_(physics) wikiPageWikiLink Inverse-square_law.
- Field_(physics) wikiPageWikiLink Isaac_Newton.