About: http://webisa.webdatacommons.org/126388797

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	Light is optically radiated onto the navigation surface by a light source, such as a light emitting diode or a laser.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk