About: http://webisa.webdatacommons.org/76011130

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 mass 514 can also be added by securing a solid object, such as a flat disk or washer (or any other suitable shape) made from steel or other material to the diaphragm 516.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk