-> Ion rockets can achieve escape velocities approaching 100Km/s at low 
-> power. Deep Space 1's ion thruster could produce 90 milli-Newtons from 
-> 2.5KW of electric power or about 36 micro-Newton per watt. This 
-> hypothetical vacuum tube by comparison would be only 3 nano-Newtons 
-> per watt. 
 
->  M*i*k*e 
  
Momentum/energy = MV/(.5MV^2) = 2/V. If V * Origin: The Bayman BBS,Toronto, (416)698-6573 - 1:250/514 (1:250/514)

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