| 单词 | field equation |
| 释义 | > as lemmasfield equation field equation n. Physics an equation which describes the properties of a field; spec. (a) one of Maxwell's equations (see Maxwell n.2 1e); (b) one of a series of equations established by Einstein which describe the curvature of space-time produced by the presence of matter. ΘΚΠ the world > matter > physics > relativity > [noun] > Einstein's general theory > equation of field equation1889 the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > [noun] > field > equation, formula field equation1889 Maxwell's equation1907 Poynting vector1913 1889 H. W. Watson & S. H. Burbury Math. Theory Electr. & Magn. II. xxiii. 170 As a simple example of the application of the field equations to such a problem, we will take the case of an infinite plane conducting sheet. 1922 E. P. Adams tr. A. Einstein Meaning of Relativity 52 Repeated application of the field equations. 1924 H. H. L. A. Brose tr. M. Born Einstein's Theory Relativity v. 154 Maxwell's ‘field equations’, as they are called, constitute a true theory of contiguous action or action by contact. 1959 Listener 27 Aug. 320/3 The steady-state cosmological theory..modifies Einstein's field equations. 1998 J. V. José & E. J. Saletan Classical Dynamics ix. 561 Maxwell's equations are an important example of field equations derived from a Lagrangian density. 2001 S. Hawking Universe in Nutshell iv. 120 (caption) The de Sitter solution of the field equations of general relativity represents a universe that expands in an inflationary manner. < as lemmas |
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