翻訳と辞書 Words near each other ・ Backer Aloenouvo ・ Backer Islands ・ Backergunge District ・ Back-chaining ・ Back-end database ・ Back-face culling ・ Back-fire ・ Back-formation ・ Back-Fusion ・ Back-illuminated sensor ・ Back-of-the-envelope calculation ・ Back-off pattern ・ Back-On ・ Back-pass rule ・ Back-rank checkmate ・ Back-reaction ・ Back-released velar click ・ Back-Room Boy ・ Back-seat driver ・ Back-side bus ・ Back-story (production) ・ Back-striped weasel ・ Back-stripping ・ Back-to-Africa movement ・ Back-to-back connection ・ Back-to-back house ・ Back-to-back life sentences ・ Back-to-back loan ・ Back-to-back user agent ・ Back-to-the-land movement 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 Back-reaction ： ウィキペディア英語版 Back-reaction In theoretical physics, back-reaction is often necessary to calculate the behavior of a particle or an object in an external field. When the particle is considered to be infinitely light or have an infinitesimal charge, it is said that we deal with a probe and the back-reaction is neglected. However, a real object also carries a mass and charges itself. They modify the original environment (for example, they help to curve the space in general relativity) and this modification – the back-reaction – has to be taken into account when a more accurate calculation is performed. In Cosmology the term Back-reaction is used for the measure of the non commutativity of the averaging procedure and the dynamical evolution of space-time. The existence of an isotropy scale is determined by the length scale at which the Back-reaction parameter vanishes. The existence of such scale still needs experimental confirmation. 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「Back-reaction」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.