ili:i117574
http:| rdf: | type | |
| skos: | definition | the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second |
Semantic relations
| ∴dns: | linked concept |
Other
| Source | http: |
∴ fully or partially logically inferred
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