About: http://webisa.webdatacommons.org/313325585

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 case is a big plastic petri dish and the circuit is a 555 oscillator with photocell control.
http://www.w3.org/ns/prov#wasQuotedFrom	createdigitalmusic.com