reference frame: Quick Facts

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Facts

Also Known As	frame of reference

Photos

Velocities of the same body in two frames of reference (see text).

Illustration showing a red train moving past a tree struck by lightning, with a stationary observer on the ground and another observer inside the train. Distance measurements labeled x and x prime represent different frames of reference, demonstrating relativity concepts.

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Topics

latitude and longitude altitude longitude Altitude and azimuthazimuth geography cartography coordinate system Parallax position vector