About: http://webisa.webdatacommons.org/272104881

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 circulation is after all only there to get the air back where it was before - surely the plane or helicopter and especially rocket fly just fine without anything coming back up (at least if there are different boundary conditions).
http://www.w3.org/ns/prov#wasQuotedFrom	science20.com