About: http://webisa.webdatacommons.org/239736727

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	It propagates in a vacuum, and space is a vacuum (not a volume of an undetectable substance, like ether).5.
http://www.w3.org/ns/prov#wasQuotedFrom	whywontgodhealamputees.com