Translation and analysis of words by artificial intelligence
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null geodesic - translation to russian
математика
геодезическая нулевой длины
![geodesic on a triaxial ellipsoid]].](https://commons.wikimedia.org/wiki/Special:FilePath/Transpolar geodesic on a triaxial ellipsoid case A.svg?width=200 "geodesic on a triaxial ellipsoid]].")
[dʒi:ə(u)|'desik-{dʒi:ə(u)}'di:sik]
общая лексика
геодезическая линия
геодезическая окружность
геодезическая прямая
геодезический
синоним
математика
геодезический путь
Definition
Wikipedia
In general relativity, a geodesic generalizes the notion of a "straight line" to curved spacetime. Importantly, the world line of a particle free from all external, non-gravitational forces is a particular type of geodesic. In other words, a freely moving or falling particle always moves along a geodesic.
In general relativity, gravity can be regarded as not a force but a consequence of a curved spacetime geometry where the source of curvature is the stress–energy tensor (representing matter, for instance). Thus, for example, the path of a planet orbiting a star is the projection of a geodesic of the curved four-dimensional (4-D) spacetime geometry around the star onto three-dimensional (3-D) space.
