About: http://webisa.webdatacommons.org/163078737

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	If necessary, a light source, such as a light emitting diode or a laser in conjunction with photodiodes can be used to detect the cantilever deflection.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca