About: http://webisa.webdatacommons.org/5851246

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	Energy is a comparatively new concept, dating back only to the middle of the 19th Century.
http://www.w3.org/ns/prov#wasQuotedFrom	modernmechanix.com