About: http://webisa.webdatacommons.org/144421489

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	From this time on, electricity was produced mainly by similar machines depending on frictional electricity.
http://www.w3.org/ns/prov#wasQuotedFrom	du.edu