About: http://webisa.webdatacommons.org/203446833

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	Whenever it interacts with magnetic material in the earth's crust, for example iron or volcanoes, it bends, creating a magnetic contour map of the world.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org