PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It looks like all the hardware except the motor is contained on the boards inside the sphere ??? maybe power is provided via the two ends of the spindle?
http://www.w3.org/ns/prov#wasQuotedFrom
  • hackaday.com