About: http://webisa.webdatacommons.org/14697090

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	This provided an answer to the question of whether light was a wave or a particle: the answer depended on what the observer was looking for.
http://www.w3.org/ns/prov#wasQuotedFrom	psyfitec.com