About: http://webisa.webdatacommons.org/269082672

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	Ong and others say that while metamaterials may not yet be making objects invisible to the eye, they could be used to redirect other kinds of waves, including mechanical waves such as sound and ocean waves.
http://www.w3.org/ns/prov#wasQuotedFrom	canindia.com