About: http://webisa.webdatacommons.org/326756491

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	The photoelectric effect can be observed in a variety of different materials, including metals, non-metals, gases, and liquids.
http://www.w3.org/ns/prov#wasQuotedFrom	daviddarling.info