About: http://webisa.webdatacommons.org/39114870

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	But suppose we take a unit vector pointing to the left, $\vec{x} = (-1)$ and multiply this by the temperature gradient we get -1 i.e. the temperature falls by 1K when moving 1m in the negative $x$ direction.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com