About: http://webisa.webdatacommons.org/198521416

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	Magnaprobe (3D compass): How it works A 3D compass always aligns itself to the magnetic field it is in, such as the Earth's magnetic field.
http://www.w3.org/ns/prov#wasQuotedFrom	wfu.edu