About: http://webisa.webdatacommons.org/118117016

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 transducer or transducers used may be ceramic pieces coated with a conductive coating, such as gold.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk