About: http://webisa.webdatacommons.org/33764811

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	P/A=KT4j/m2s where K is the Boltzmann constant; the formula is adjusted for less ideal radiators which is everything else other than cavities.
http://www.w3.org/ns/prov#wasQuotedFrom	joannenova.com.au