inertial reference frame
cârcub-e bâzbord-e laxtinâk, ~ ~ laxtimand
Fr.: référentiel galiléen
A → reference frame or coordinate system in which there are no accelerations, only zero or uniform motion in a straight line. According to the special theory of relativity, it is impossible to distinguish between such frames by means of any internal measurement.
Fr.: système de référence
A set of axes to which positions and motions in a system can be referred. Same as → frame of reference.