About: http://webisa.webdatacommons.org/117468147

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 contact post 53 is made of a metal which is particularly rigid and acts, when electrical potential is applied across the element 48, to provide a high acoustic impedance so that the ultrasonic pulse is sent into the liquid.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au