About: http://webisa.webdatacommons.org/246053554

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 wall a, deflecting-plates I) d, and other plates used in the apparatus are madeof sheet steel, iron, or other suitable material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com