About: http://webisa.webdatacommons.org/83122823

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	But when using another material, such as a ruler, the center of mass of the system will be somewhere in the ruler.
http://www.w3.org/ns/prov#wasQuotedFrom	lyvemedia.com