About: http://webisa.webdatacommons.org/99062899

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 contrast illustrates the fact that while these pictures were taken nearly ninety years apart, the activities and processes shown remain similar; it is mainly the tools and technology that have changed.
http://www.w3.org/ns/prov#wasQuotedFrom	psr.edu