About: http://webisa.webdatacommons.org/209001968

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	There are no moving parts other than the rotating Earth, with the instrument oriented east to west.
http://www.w3.org/ns/prov#wasQuotedFrom	nextbigfuture.com