About: http://webisa.webdatacommons.org/29482274

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 contrast to prior art systems of a single moving element with a stationary element, the present invention's use of two oppositely moving elements, such as a magnet and a coil, provides double the speed of flux change as the prior art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com