About: http://webisa.webdatacommons.org/264266921

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 was extended by the experimental work of Michael Faraday and the theoretical work of James Clark Maxwell, who showed that light waves were a form of electromagnetic radiation.
http://www.w3.org/ns/prov#wasQuotedFrom	marxist.com