About: http://webisa.webdatacommons.org/238590468

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	He turned his attention to the statistics of photons, a quantum of electromagnetic energy that has no charge or mass but carries energy, such as light and x-rays, in both wave and particle form.
http://www.w3.org/ns/prov#wasQuotedFrom	yourdictionary.com