Assertion: way speed | /r/HasProperty | constant
Facets:
value: regardless of direction
type: OTHER
value: through the aether
type: LOCATION
Source sentences:
text: For instance, Edwards replaced Einstein's postulate that the one-way speed of light is constant when measured in an inertial frame with the postulate:
text: In 1887, the Michelson–Morley experiment showed that the two-way speed of light was constant regardless of direction or motion through the aether.