🚀 go-pugleaf

In <l81lk0INNdu4@pollux.usc.edu> srobiner@pollux.usc.edu (Steven Robiner) writes:

>I think I've heard that if a photon hits an electron, it
>is absorbed (assuming it's off the right energy level), and
>the electron will recoil a bit, correct?

>But what happens when a photon hits another photon?  Do they
>bounce off each other, or pass right through each other?

>And why is this different for electrons?  Is it because they
>have a charge or mass, or both?


>=steve=


In order for something "hitting" another thing, it should have defined size
and defined location.  Now could you tell us, how big is a photon or where
exactly is located.  Since, we know the velocity of photon very accurately,
we can not tell it's position to begin with.  Neither, a photon has a size.
A photon might be as big as the whole solar system, or as small as an atom.
What we have here is the interaction with electron and interaction with
another photon.  A proton's interaction with another photon causes
destructive and/or constructive interference.

                      With highest regards,
                           Babak   Sehari.