翻訳と辞書 Words near each other ・ Post-Mersh Vol. 2 ・ Post-Mersh Vol. 3 ・ Post-metal ・ Post-metallocene catalyst ・ Post-modern constructivism ・ Post-modern portfolio theory ・ Post-money valuation ・ Post-monotheism ・ Post-mortem (disambiguation) ・ Post-mortem interval ・ Post-mortem photography ・ Post-Napoleonic depression ・ Post-nasal drip ・ Post-neoliberalism ・ Post-network era ・ Post-Newtonian expansion ・ Post-nominal letters ・ Post-normal science ・ Post-Nothing ・ Post-oak bluff ・ Post-occupancy evaluation ・ Post-occupation Japan ・ Post-office box ・ Post-op ・ Post-orbital constriction ・ Post-painterly abstraction ・ Post-Parlo ・ Post-PC era ・ Post-perovskite ・ Post-PFI Soviet/Russian aircraft projects Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Post-Newtonian expansion ： ウィキペディア英語版 Post-Newtonian expansion Post-Newtonian expansions in general relativity are used for finding an approximate solution of the Einstein field equations for the metric tensor. The approximations are expanded in small parameters which express orders of deviations from Newton's law of universal gravitation. This allows approximations to Einstein's equations to be made in the case of weak fields. Higher order terms can be added to increase accuracy, but for strong fields sometimes it is preferable to solve the complete equations numerically. This method is a common mark of Effective Field Theories. In the limit, when the small parameters are equal to 0, the post-Newtonian expansion reduces to Newton's law of gravity. == Expansion in 1/''c''2 == The post-Newtonian approximations are expansions in a small parameter, which is the ratio of the velocity of matter, forming the gravitational field, to the speed of light, which in this case is better called the speed of gravity. In the limit, when the fundamental speed of gravity becomes infinite, the post-Newtonian expansion reduces to Newton's law of gravity. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Post-Newtonian expansion」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.