About: http://webisa.webdatacommons.org/291559851

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	Now remember, force is a vector, so we need to calculate both magnitude and direction.
http://www.w3.org/ns/prov#wasQuotedFrom	natureofcode.com