From: jaimie@sometimes.sessile.org   
      
   On Fri, 4 Jan 2019 11:09:47 -0800 (PST), els.dallas@gmail.com wrote:   
      
   >The 2 percent aqueous solution of uranium tetrabromide is 38 percent uranium   
   tetrabromide by mass. Uranium tetrabromide is over 5 times denser than water   
      
   Yes, 5.19g/cm^3. This should have told you that a 2% aqueous solution of   
   UBr4 is about 10% UBr4 by mass, not 38%.   
      
   > and since acceleration is equivalent to gravity, it should separate out of   
   solution   
      
   That's not how solutions work. You're thinking of suspensions. Solutions   
   do not separate under gravity.   
      
   Even if anything did precipitate and fall to the bottom, the turbulence   
   from pumping and acceleration/rotation etc would keep it pretty well   
   stirred. Not to mention that on any approach to critical mass (and   
   density) the heat would boil the aqeous and give it a real mix.   
      
   > and collect at the back of the propellant tanks. We are talking about enough   
   uranium to trigger a gigaton level explosion if it goes off.   
      
   So, no. Your assumptions are well off so the problem isn't a problem in   
   reality. You're not going to have an accidental runaway.   
      
   	Cheers - Jaimie   
   --   
   There are no normal people--only people you don't know very much about.   
                                                 -- Nancy Lebovitz, rasfw   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)