World tube: Difference between revisions

Revision as of 16:49, 2 January 2012 editQetuth (talk \| contribs)Extended confirmed users29,594 editsm more specific stub type← Previous edit		Latest revision as of 00:36, 21 December 2020 edit undoPokechu22 (talk \| contribs)Extended confirmed users6,632 edits Rcat; not entirely sure why this was redirected but eh, there wasn't much here anyways. Perhaps the reference that was here should be added to world line but I don't know enough about the subject to do it myself.
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	In physics, a '''world tube''' is the path of an object occupies a nonzero region of space (nonzero ]) at every moment in time, as it travels through 4-]al ]. That is, as it propagates in ], a world tube traces out a three-dimensional ] for every moment in time.<ref>Malcolm Ludvigsen: ''General relativity: a geometric approach'', Cambridge University Press, 1999, ISBN 0-521-63019-3, </ref> The world tube is analogous to the one-dimensional ] in that it describes the time evolution of an object in space, with the difference that a world line it represents the path of a ] (of nonzero volume), whereas a world tube occupies finite space at all moments in time.

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	The concept of world tube is particularly relevant for ], where a world tube is embedded in ].
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	==See also==
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	==References==
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Latest revision as of 00:36, 21 December 2020

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