About: http://webisa.webdatacommons.org/42947676

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	As air itself is a good insulator, filling the gap between the glass panes with a low-conductivity gas such as argon improves window performance by reducing conductive and convective heat transfers.
http://www.w3.org/ns/prov#wasQuotedFrom	windowinfo.co.uk