About: http://webisa.webdatacommons.org/370002829

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	At the end of each arm was a mirror, which would bounce the light back to its starting point.
http://www.w3.org/ns/prov#wasQuotedFrom	edge.org