About: http://webisa.webdatacommons.org/71945337

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 surface is a piece of acrylic topped with some light diffusing material.
http://www.w3.org/ns/prov#wasQuotedFrom	hackaday.com