About: http://webisa.webdatacommons.org/363044415

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	Also, a photonic crystal is a material that makes it impossible for light to travel through it, although it is made from a material that is transparent for light with that frequency.
http://www.w3.org/ns/prov#wasQuotedFrom	arstechnica.com