About: http://webisa.webdatacommons.org/131733963

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	When such ammonium sulfate is deposited on the surface of an optical element such as a lens or mirror, the above-described ???blur??? results.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com