About: http://webisa.webdatacommons.org/246816228

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	They were left to speculate that light might be particles but it might be waves and both represented some sort of energy that simply hasn't been defined in the same manner the rest of the physical universe has been.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com