PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The momentum of the propellant-craft system is conserved, which means that as momentum is thrown out behind the rocket as it uses fuel, the rocket moves forward.There are a few ways to achieve greater efficiency when performing burns".
http://www.w3.org/ns/prov#wasQuotedFrom
  • arstechnica.com