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   sci.space.tech      Technical and general issues related to      3,113 messages   

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   Message 2,961 of 3,113   
   Del Cotter to Benjamin B   
   Re: DeltaV, Exhaust Velocity, and Partic   
   27 Feb 06 19:15:24   
   
   From: del@branta.demon.co.uk   
      
   On Sat, 25 Feb 2006, in sci.space.tech,   
   Benjamin B  said:   
      
   >Can anyone explain to me if I'm mistaken and why... why don't heavy   
   >particles = more deltaV   
      
   Think of a tank full of particles. If the tank contains a ton of them   
   and the particles are a picogram each, there's 10^18 of them in the   
   tank. If they are a nanogram each, then each particle will have 1,000   
   times the momentum, but there will only be 10^15 of them in a ton, so it   
   all works out. The mass is taken care of in the "mass ratio" term, so   
   you don't have to worry about it in the exhaust.   
      
   --   
   Del Cotter   
   NB Personal replies to this post will   
   send email to del@branta.demon.co.uk   
   Please send your email to del2 instead   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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