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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク World tube ： ウィキペディア英語版 World tube In physics, a world tube is the path of an object which occupies a nonzero region of space (nonzero volume) at every moment in time, as it travels through 4-dimensional spacetime. That is, as it propagates in spacetime, a world tube traces out a three-dimensional volume for every moment in time.〔Malcolm Ludvigsen: ''General relativity: a geometric approach'', Cambridge University Press, 1999, ISBN 0-521-63019-3, (p. 74 )〕 The world tube is analogous to the one-dimensional world line in that it describes the time evolution of an object in space, with the difference that a world line represents the path of a point particle (of nonzero volume), whereas a world tube occupies finite space at all moments in time. The concept of world tube is particularly relevant for special relativity, where a world tube is embedded in Minkowski space. ==See also== * World line * World sheet 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「World tube」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.