PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Sorry waves need a gas or liquid medium to propagate and that is not available in a vacuum of outer space therefor photons are a particle no less real the the earth or you are. ncluding the potential to have mass otherwse it would not have the knetic energy to displace a photon in the photoelectric effect.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org