About: http://webisa.webdatacommons.org/258806914

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	???reactions between waveguide and beam???: the thing here is to see that the beam is an electromagnetic wave that is governed by special relativity, in particular the constancy of the speed of light.
http://www.w3.org/ns/prov#wasQuotedFrom	e-catworld.com