About: http://webisa.webdatacommons.org/195547944

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	The physics of electrons and electronic devices, including vacuum tubes, diodes,
http://www.w3.org/ns/prov#wasQuotedFrom	archive.org