About: http://webisa.webdatacommons.org/269147023

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	In all arrangements where transmissivity, reflectivity, polarization or other wave-form altering characteristics are employed, electromagnetic transmitters and receivers may be used to detect these changes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com