About: http://webisa.webdatacommons.org/413975068

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	Finally, electric fields generally do not penetrate conductors whereas magnetic fields can penetrate non-ferrous materials such as aluminum and copper. 73.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com