About: http://webisa.webdatacommons.org/244882295

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	James Clerk Maxwell proposed that light is an electromagnetic wave and used his theory to predict the expected speed of these waves.
http://www.w3.org/ns/prov#wasQuotedFrom	themetricmaven.com