About: http://webisa.webdatacommons.org/202494944

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	Ordinary lasers work by bouncing photons back and forth between two semi-transparent mirrors separated by a medium such as a crystal or a gas.
http://www.w3.org/ns/prov#wasQuotedFrom	newscientist.com