About: http://webisa.webdatacommons.org/118769620

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 clepsydra measured the controlled flow of water, mercury, or other liquids through a narrow opening.
http://www.w3.org/ns/prov#wasQuotedFrom	daviddarling.info