PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Flywheel energy density is much higher than batteries, especially in space where friction losses can be minimized and there is no need for a failure containment vessel, so long as the thing is kept oriented in a safe direction (do not build space station modules that cross the plane of flywheel rotation).
http://www.w3.org/ns/prov#wasQuotedFrom
  • slashdot.org