The Translation (physics) reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Translation (physics)

In physics, a translation is the operation changing the positions of all objects according to the formula

where is a constant vector. Such an operation can be generalized to other coordinates, for example the time coordinate.

Because of Noether's theorem, the translational symmetry is equivalent to momentum conservation.

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