From: gossg@gossg.org   
      
   johnny1a.again@gmail.com wrote:   
      
   >> On Mon, 09 Oct 2017 22:10:35 -0600, Greg Goss wrote:   
      
   >> > You may have stopped reading Ringworld too early.  In book four we find   
   >> > that they stored the hydrogen from the gas giants that they dismantled   
   >> > for the ring, and used that to spin up the ring, at least to the point   
   >> > where they had bussard speed to gather enough solar wind.   
      
   >I could believe that the solar wind might provide sufficient fuel for the   
   attitude jets, once the Ringworld was spun up, because the intakes could draw   
   in the gas and store it, and the amount of thrust necessary is relatively   
   small, as long as the jets    
   respond quickly to anything that moves the Ring out of equilibrium.  (The   
   longer the delay time, the harder it is to reverse the damage.)   
   >   
   >OTOH, controlled gravity manipulation would likely work even better than the   
   attitude jet system, and the Pak canonically did have at least some gravity   
   manipulation tech.  OTOH, that was in Phssthpok's time, maybe it hadn't been   
   developed by the time    
   the Ringmakers left Pak?   
      
   I don't remember gravity manipulation anywhere in the known space   
   books, including Protector.   
      
   Book four includes discussions with one of the Ringmakers -- rather   
   old by now.  They knew about Phssthpok and chose to follow, almost,   
   his path.   
   --   
   We are geeks.  Resistance is voltage over current.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)