About: http://webisa.webdatacommons.org/52054287

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	here is why: over long distances shorter wavelengths???higher frequency waves???tend to lose more energy than at lower frequencies and thus will be less effective at penetrating solid objects such as walls, bookcases and other furniture.
http://www.w3.org/ns/prov#wasQuotedFrom	ttiinc.com