From: rking164@comcast.net   
      
   On Sunday, November 12, 2023 at 9:39:38 AM UTC-6, Lazarus Cain wrote:   
   > Of some interest would be the classified military technology which may be   
   used for finding enemy underground hangouts. Ability is enhanced if sensor   
   equipment on ground overhead.    
   > Seismic sensors may be attached to undeground robots.    
   > Sonar, as in sunmarines, for guidance and control.    
   > The wolf in sheeps clothing gives missiles away to randomly fire at civilian   
   terrtory while accusing another of war crime.    
   > US needs to test its equipment if ever any need to check out Iran's military   
   sunterranean labyrinths.    
   > Extreme depth similar to looking for oil, I guess.    
   >    
   > Refraction prospecting uses refracted waves from near-surface explosions and   
   subsurface layering. It is detailed on a smaller scale, particularly for   
   unknown geology. It is a powerful tool of petroleum seismology and theoretical   
   seismology for    
   investigating the basement, depth and crustal structure.    
   >    
   > The generation of seismic waves involves explosion of a dynamite charge in a   
   hole or weight dropping. Truck mounted mechanical vibrators (Vibroseis) to   
   pass an extended vibration of low amplitude into the ground and continuously   
   varying frequency    
   between 10 and 80 Hz. In marine seismic study, an electric or gas spark or air   
   gun shot is used as an energy source. Device used to detect and receive   
   seismic ground motion are called “Seismometer” or “Geophone.” It is an   
   electromechanical device    
   used to convert mechanical input (seismic pulse) into electrical output and   
   ultimately produce a continuous graph “Seismograph.” The modern seismic   
   survey simultaneously records ground motions receiving from all directions due   
   to combinations of    
   transverse and longitudinal waves by a three-component geophone   
   Underground, like underwater warfare, has its pitfalls.    
   Not many German submariners survived as all German underwater firepower wiped   
   out.   
   Those above surface more easily eat, drink, breathe the fresh air and can   
   enjoy the light of day when there is no power..   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)