About: http://webisa.webdatacommons.org/126184626

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	FIG. 2 is a side elevational view of the sensor head 10, greatly exaggerated, illustrating operation of frequency members 26a-d for ascertaining the characteristics of asperities on a disc surface 28.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com