About: http://webisa.webdatacommons.org/21392750

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	This concept is equivalent to assuming that the body is a particle with a definite mass but no size.Strictly speaking, the laws are valid only for motions relative to a reference frame (coordinate system) attached to the fixed stars.
http://www.w3.org/ns/prov#wasQuotedFrom	britannica.com