PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A perfect white metal at atmospheric pressure, on increasing pressure sodium first turns black, then (at the pressure of 2 million atmospheres) red transparent, and eventually becomes a colorless transparent material - just like glass. ???This fundamental result is important for understanding properties of highly compressed matter, particularly within stars and giant planets,??? said Oganov. The u
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org