About: http://webisa.webdatacommons.org/421860622

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	On the electrodynamics of moving bodies" discussed the special theory of relativity which said that, for all frames of reference, the speed of light is a constant and that time and motion are all relative to the observer.
http://www.w3.org/ns/prov#wasQuotedFrom	si.edu