About: http://webisa.webdatacommons.org/125799872

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	Communications at optical frequencies are especially sensitive to atmospheric and environmental conditions, particularly fog, which can drastically limit distance. (see page 13)
http://www.w3.org/ns/prov#wasQuotedFrom	rfcafe.com