About: http://webisa.webdatacommons.org/439774111

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	Some of these water clocks, or clepsydra as they were called, had floats or other indicators which were intended to subdivide a unit of time into substantially uniform divisions.
http://www.w3.org/ns/prov#wasQuotedFrom	ieee-uffc.org