About: http://webisa.webdatacommons.org/173177108

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	It is a vector quantity, like gravity,,,,, whereas pressure is a scalar quantity.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org