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GarageDweller
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Bit confused regarding how non-inertial frames can be treated in GR (and by non-inertial i mean affected by some kind of four-force). Can anyone give a brief summary or link to some good sources?
Non-inertial frames of reference are frames of reference that are accelerating or rotating. In general relativity, these frames are important for understanding how gravity affects the behavior of objects.
Inertial frames are frames of reference that are not accelerating or rotating, and they follow the laws of special relativity. In contrast, non-inertial frames experience the effects of gravity and require the use of general relativity to accurately describe the behavior of objects within them.
Some common sources of non-inertial frames in general relativity include rotating objects, such as planets and stars, as well as accelerating objects, such as rockets and airplanes.
In general relativity, the effects of non-inertial frames are accounted for through the curvature of spacetime. This curvature is caused by the presence of massive objects and results in the acceleration of objects within the frame, as described by Einstein's field equations.
Understanding non-inertial frames in general relativity is crucial for accurately predicting and describing the behavior of objects in our universe. This knowledge has practical applications in fields such as astrophysics, navigation systems, and space travel.