About: http://webisa.webdatacommons.org/340259275

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	Some thought the rays were a wave traveling through a mysterious ether which they thought permeated all space.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org