About: http://webisa.webdatacommons.org/424725254

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	Several problems needed to be overcome before this system was operational, such as the cost of lifting the materials into space and creating rods of sufficient strength to withstand the energies involved.
http://www.w3.org/ns/prov#wasQuotedFrom	futuretimeline.net