Assertion: kilogram's mass | /r/HasProperty | the same
Facets:
value: for observers in all inertial frames
type: TRANSITIVE-OBJECT
value: everywhere
type: LOCATION
Source sentences:
text: The mass of an object is the same everywhere.
text: The invariant mass of systems is the same for observers in all inertial frames, while the relativistic mass depends on the observer's frame of reference.