About: http://webisa.webdatacommons.org/450033069

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	Light is a wave, but most instruments can only measure the amplitude (=intensity) of it.
http://www.w3.org/ns/prov#wasQuotedFrom	nasa.gov