About: http://webisa.webdatacommons.org/193201852

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	There is the classical electromagnetic wave framework, where light is an electromagnetic wave whose amplitude are changing electric and magnetic fields as the wavefront progresses.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com