About: http://webisa.webdatacommons.org/324502997

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	In addition, the geometries of the elliptical mirror do not lend themselves to semiconductor balls that are not perfect spheres or to curved surfaces other than spheres.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com