About: http://webisa.webdatacommons.org/73345740

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	Traditionally, thin metal layers are considered opaque relative to transmitted visible light when their thicknesses exceed the typical skin depth values ??, of only 10-15 nm, for metals such as aluminum and silver.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com