About: http://webisa.webdatacommons.org/181101386

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 maths is not particularly difficult, but you do need to understand trig and equations.
http://www.w3.org/ns/prov#wasQuotedFrom	open.ac.uk