Principle of relativity

In <a href="/facts/Physics/a7aH2y08">physics</a>, the principle of relativity is the requirement that the equations describing the <a href="/facts/Physical_law/aVtc4wpk">laws of physics</a> have the same form in all admissible <a href="/facts/Frames_of_reference/15yYfB9M">frames of reference</a>.
For example, in the framework of <a href="/facts/Special_relativity/vsFFc63E">special relativity</a>, the <a href="/facts/Maxwell_equations/LfJ1drHS">Maxwell equations</a> have the same form in all <a href="/facts/Inertial_frame_of_reference/1U6TrdG3">inertial frames of reference</a>. In the framework of general relativity, the Maxwell equations or the <a href="/facts/Einstein_field_equations/j2rJTzW9">Einstein field equations</a> have the same form in arbitrary frames of reference.
Several principles of relativity have been successfully applied throughout <a href="/facts/Science/IJoaD7rs">science</a>, whether implicitly (as in <a href="/facts/Newtonian_mechanics/XKzGTXK1">Newtonian mechanics</a>) or explicitly (as in <a href="/facts/Albert_Einstein/CNTet8qu">Albert Einstein</a>'s special relativity and <a href="/facts/General_relativity/jVsoIg8X">general relativity</a>).

Principle of relativity open-in-new

Principle of relativity