About: http://webisa.webdatacommons.org/435979992

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	When temperature is measured relative to an ideal gas, it turns out that mercury and other liquids have coefficients of expansion that change slightly with the temperature, so they are not good references for precision measurements.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com