About: http://webisa.webdatacommons.org/398071704

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	However, there was a surprise involved: some light, no matter how brightly it was concentrated on the metal, failed to activate an electric current.
http://www.w3.org/ns/prov#wasQuotedFrom	setterfield.org