About: http://webisa.webdatacommons.org/68447783

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	Al-Haitham wrote on refraction, reflection, focusing with lenses and other topics.
http://www.w3.org/ns/prov#wasQuotedFrom	salaam.co.uk