About: http://webisa.webdatacommons.org/306445931

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 chamber may be filled with a transparent solid such as glass, so that the entire chamber is a large glass rod coated with light absorbing surfaces.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com