About: http://webisa.webdatacommons.org/55360311

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	I have used crystals hung from chains, but as some types of chain can possibly influence how tha pendulum swings, I would not suggest a chain for beginners.
http://www.w3.org/ns/prov#wasQuotedFrom	stenulson.net