About: http://webisa.webdatacommons.org/305283178

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	The heads are radially and very rapidly, i.e. substantially instantaneously, driven by an actuator to step them between the different data tracks, i.e. to radially jump from a present track to an addressed track in a step-like manner.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca