About: http://webisa.webdatacommons.org/321416512

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	It is not just a ???speed limit??? - it is the point at which matter and the energy used to move it reveal themselves as different aspects of the same property (which is why nothing other than light can move that fast).
http://www.w3.org/ns/prov#wasQuotedFrom	opednews.com