About: http://webisa.webdatacommons.org/48603385

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	and that the two waves will be in phase if this path difference is equal to n ?? where n is an integer.
http://www.w3.org/ns/prov#wasQuotedFrom	iucr.org