About: http://webisa.webdatacommons.org/269469614

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	He worked on such projects as space tethers and space fountains, solar sails (including Starwisp), antimatter propu
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org