About: http://webisa.webdatacommons.org/433228110

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	We simply use a piezoelectric material, like Quartz, which is a kind of material which generates an electric tension when a force is applied.
http://www.w3.org/ns/prov#wasQuotedFrom	3dcalifornia.com