Assertion: speed | /r/HasProperty | the same
Facets:
value: in all inertial reference frames
type: LOCATION
Source sentences:
text: On the Electrodynamics of Moving Bodies”, Albert Einstein asserted that the speed of light in a vacuum, measured by a non-accelerating observer, is the same in all inertial reference frames and independent of the motion of the source or observer.
text: Not only did it advance the idea that the speed of light is the same in all inertial reference frames, it also introduced the idea that major changes occur when things move close the speed of light.