About: http://webisa.webdatacommons.org/111595043

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	As is the usual, the diffraction property of the grating can be described by the following formula: 2d sin ??=m??, where m is an integer and d is the distance between grating lines.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca