About: http://webisa.webdatacommons.org/276914546

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	Thus by turning mirror 50 appropriately, light from laser 20 can be made to irradiate film 30 from any desired one of the directions such as 70, 71, etc. provided by the plurality of mirrors 55.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com