PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • On Earth, with air resistance, gravity, and other factors, the direction a vehicle travels and its orientation tend to be much more tightly coupled.) The spacecraft computes how to point the ion thruster in order to achieve the torque necessary to turn itself.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nasa.gov