About: http://webisa.webdatacommons.org/358639919

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	Natural light is made up of different colours, including blue light, and it is this type that sends the strongest signal to the brain to let it know whether it is day or night.
http://www.w3.org/ns/prov#wasQuotedFrom	iol.co.za