About: http://webisa.webdatacommons.org/217822756

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	OK thanks Owen, so magnesium is a good material for a lightweight light such as a head lamp I guess.
http://www.w3.org/ns/prov#wasQuotedFrom	candlepowerforums.com