About: http://webisa.webdatacommons.org/64679689

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	Finally, Zontar introduces the children to our more recent timekeeping devices, including water clocks, candles, bells, the first mechanical clocks and the most accurate timekeepers of all ??? today's atomic clocks.
http://www.w3.org/ns/prov#wasQuotedFrom	triton.edu