PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I have read that the government run helium wells in Oklahoma were sealed off because helium was a byproduct of the new nuclear breeder reactors, but this discussion is interesting in the light of new materials and technologies, I like the idea of solar charging membranes that could cover the outside of the airship to provide power.
http://www.w3.org/ns/prov#wasQuotedFrom
  • airships.net