About: http://webisa.webdatacommons.org/455541250

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	Such losses ordinarily occur because the radiation emerging from most optical fibers is spread into rather large angles (typically, 50 or 60 degrees) compared with other optical elements, such as lenses.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au