About: http://webisa.webdatacommons.org/181710924

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	It would be a chamber, and inside would be a gas or a liquid, such as liquid crystals, and there would be clear windows on either side, so that the light can get in and out.
http://www.w3.org/ns/prov#wasQuotedFrom	jlab.org