About: http://webisa.webdatacommons.org/298024050

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	The lenses are a plastic with a very high refractive index so that the lenses are quite thin and weigh next to nothing.
http://www.w3.org/ns/prov#wasQuotedFrom	scienceblogs.com