About: http://webisa.webdatacommons.org/40856468

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	In FIG. 7 an example of an indicator is shown where the indicia were cut out of a polarising sheet and placed at progressively increasing polarisation angles for the series of numbers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk