About: http://webisa.webdatacommons.org/91066234

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	According to Huygens, the appearance of the spectrum, as well as the phenomena of reflection and refraction, indicated that light was a wave.
http://www.w3.org/ns/prov#wasQuotedFrom	keywen.com