PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • e points and their location in your sky- Explore solar system objects, properties, and dynamics- Study Moon phases, eclipses, and tides- Examine properties of over 100,000 stars, including distance, parallax, luminosity, and position on the Hertzsprung???Russell diagram- Learn about the seasons and when meteor showers occur- Access formulas such as Newton's and Kepler's laws, escape velocity, mome
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com