About: http://webisa.webdatacommons.org/101383413

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	The invention is particularly directed to an apparatus that does not require any electric motors, sensors, or other complicated devices to enable the apparatus to track the movement of the sun.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com