About: http://webisa.webdatacommons.org/412883634

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	See The Tyranny of the Rocket Equation.In the real world, spacecraft will be mostly tanks of propellant, propulsion system, payload bays, and a lacy lattice-work of support struts holding everything together.
http://www.w3.org/ns/prov#wasQuotedFrom	projectrho.com