About: http://webisa.webdatacommons.org/216450186

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	The square root of negative one has a physical correspondence; in particular (if I correctly recall classes from 20 years back), for some sorts of electrical engineering stuff, like viewing a capacitor as a screwy sort of resistor.
http://www.w3.org/ns/prov#wasQuotedFrom	freethoughtblogs.com