Re: Space Travel will save the world ... The fundamental cost driver for space travel is the cost of momentum. ... flow rate between the surface of the Earth and points across the solar... not be sustained by current levels of material production on Earth. ... (sci.space.policy)
Re: Other JSF options ... That cost boost would be at most the five or six percent that we would ... in terms of further R&D and production funding.... Unless you lack the up-front money to make it happen in the first place. ... MH-60 for CSAR.... (rec.aviation.military)
Re: Global wireless hotspot ...technology) the thing was declassified sort of. ... I think it is probably more to do with viewing the Earth.... There are other reasons beyond the potential cost of public enthusiasm ... during the launch of Apollo 8. ... (sci.space.policy)
Re: Electrogravitics is Reality! ... we do live on a planet called Earth and it is ... orbited by a moon, and we can build things called rockets to access it ... That's fantasy too. ... SRBs increase cost, increase danger, and are a bad idea. ... (sci.space.policy)
Re: Building Real Spaceships ... A fully resuable ship of the type I've described is capable of a moon... - this is a cost of $100,000 per ton. ... substantial profits when exported to Earth.... Airless or nearly airless bodies can dispatch raw materials off their ... (rec.arts.sf.written)
