About: http://webisa.webdatacommons.org/281306557

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 page has been validated. several millions of tons per square inch and the period is a fraction of a thousandth part of a second.
http://www.w3.org/ns/prov#wasQuotedFrom	wikisource.org