From: ru@ru.ru   
      
   E.Laureti   wrote:   
      
   > Vincent Maycock  posted:   
      
   > > >>>>Briefly, how are you changing the field self-interaction to increase   
   > > >>>>the thrust of your PNN vehicle? Or are there other methods that you're   
   > > >>>>using to accomplish that crucial goal?   
   > > >>>   
   > > >>>Yes, methods:   
   > > >>>   
   > > >>>1) Lower the impedance of the dipole   
   > > >>>   
   > > >>>2) Increase the current   
   > > >>   
   > > >>And are those things difficult to accomplish?   
   > > >   
   > > >To lower the impedance of a dipole fed at high frequency is not so   
   > > >simple, one would have to at least use silver wires, at least.   
      
   Firstly, you have to match the impedance of your "dipole" load to the RF   
   source and to the transmission line.   
      
   There are ways to lower the impedance of the radiating element, such as   
   increasing the diameter (which lowers the Q as well). Copper tubing is   
   great. For impedance matching, a transformer will work. You also need a   
   balun, as explained before, and there are simple, slick ways to realize   
   a balun and impedance-matching transformer all in one, using   
   transmission line or antenna stubs.   
      
   However. Simply more current isn't going to solve your problem. The   
   velocity of charge carriers is just as important. You can have high   
   current drifting lazily along the element, and it won't give you vXB   
   force. You need to know the bulk drift rate of the electrons. You also   
   need to know the current distribution along the dipole.   
      
   Silver wire isn't an answer. Element RF impedance is determined by the   
   geometry of the element. Metal conductivity has less to do with it.   
   Plus, "wire" (presumably thin) is going to give you high impedance and   
   high Q. Also, google "skin effect".   
      
   What you are building is basically an antenna. Antennas are not known   
   for producing force, if you hadn't noticed.   
      
   Then there's the unbalanced coax feed blooper, which you don't seem to   
   realize.   
      
   Any vXB force is applied between the dipole and the magnets, not   
   externally, and that's your foremost miscalculation.   
      
   Your RF half-cycles are still canceling out all your alleged force.   
      
   I can't see why you are even using RF. Can you explain that? A DC loop   
   in 'n out the B field would work just as well, being infinitely simpler.   
      
   A TV picture tube has an electron beam, guided by vXB force using the   
   magnets in the yoke. Shouldn't that produce thrust? Perhaps you could   
   just use a TV picture tube for your space propulsion system? As a side   
   benefit, it would entertain the astronauts all the way to Mars.   
      
   I realize you can't answer any of these points, but your retorts are   
   endearing.   
      
      
   > > And you're saying those cost too much to try to use?   
   > >   
   > > >Second, and more important, to increase the current, all the circuitry   
   > > >must *support* high currents at high frequency, and some electronic   
   > > >components just melt under such stress.   
   > >   
   > > Which ones are melting down,   
      
   The "designer".   
      
   > > and why can't you replace them   
      
   Because... :   
      
   > $$$$$$  and to pay several engineers...   
      
   You're building a device that will revolutionize space travel, and no   
   one involved can do any engineering, let alone the physics? So you have   
   to solicit investors and free advice on Usenet?   
      
   Lord have mercy.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)