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Preferred frame
open-in-new
<p>In <a href="/facts/Theoretical_physics/Cs2Y12rQ">theoretical physics</a>, a preferred frame or privileged frame is usually a special <a href="/facts/Hypothetical/gMABEJul">hypothetical</a> <a href="/facts/Frame_of_reference/15yYfB9M">frame of reference</a> in which the <a href="/facts/Laws_of_physics/aVtc4wpk">laws of physics</a> might appear to be identifiably different (simpler) from those in other frames. </p><p>In theories that apply the <a href="/facts/Principle_of_relativity/8I2xlmoP">principle of relativity</a> to <a href="/facts/Inertia/bzK9uzI2">inertial</a> motion, physics is the same in all <a href="/facts/Inertial_frame/1U6TrdG3">inertial frames</a>, and is even the same in all frames under the principle of <a href="/facts/General_relativity/jVsoIg8X">general relativity</a>. </p>