From: ralivingston1952@charter.net   
      
   On Monday, February 6, 2017 at 10:22:48 AM UTC-6, SEKI wrote:   
   ...   
   >   
   > I acknowledge that particle natures of quanta are:   
   > (1) They are countable, and   
   > (2) Each of them can be localized.   
   >   
   > Anything else?   
   >   
   > Anyway, I can make the assumption of waves that are countable and   
   > each can be localized.   
   >   
   > On the other hand, I can never assume that a particle can interfere   
   > with itself.   
   > Can you?   
   >   
   >   
   > > When I think about a wave I always think about many particles.   
   >   
   > What do you think about single particle (quantum) interference in a   
   > double slit experiment?   
   >   
   > Thank you.   
   >   
   > SEKI   
   >   
   ...   
      
   The particle nature of light and particles is that they depart and   
   arrive in discrete lumps at discrete times.  The wave nature is in   
   how they propagate from the emission event to the absorption event.   
   We have trouble separating these two aspects of their behavior   
   because macroscopic particles propagate as particles, not waves and   
   macroscopic waves are generated and destroyed as waves not particles.   
   This is what causes so much conceptual difficulty.   
      
   Microscopic particles, such as a photon, are emitted at a discrete   
   event that is localized (to varying degrees) in both time and space.   
   How they propagate is a bit mysterious but shows more wavelike   
   characteristics than particle characteristics.  For example, a   
   photon reflecting from a mirror does not reflect from a single   
   electron or atom on the mirror, but is reflected from ALL the   
   electrons or atoms on the surface of the mirror.  If the photon is   
   detected past an aperture with multiple holes, there is a wave of   
   some kind that propagates through ALL of those holes to reach the   
   detection event.  This appears inconsistent with the particle nature   
   of the photon, but that is only because we have been conditioned   
   to think of particles like rocks or baseballs.  Subatomic particles   
   are different.   
      
   Rich L.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)