About: http://webisa.webdatacommons.org/268050624

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 only when they get off the plane and compare their watches with someone who has been stationary relative to them that they notice a difference.Passenger jets fly at about 600 miles per hour which seems pretty fast.
http://www.w3.org/ns/prov#wasQuotedFrom	physics.org