🚀 go-pugleaf

In <1992Aug7.024522.7375@uniwa.uwa.edu.au> raistlin@tartarus.uwa.edu.au (Brett Cuthbertson) writes:

>A photon consists of two field components which are perpendicular to
>each other....( the electric and magnetic fields)..

>begin fields they simply interfere with each other through
>superposition...

>in the case of a photon hitting an electron..the electron has mass and
>the photon has momentum where the momentum arises through the electric
>and magnetic field...I can't remember which one?...

>hmmm..sorry bout this I am just trying to refresh my mind on this
>subject since I just had a unit in OPTICS on it...<GRIN>...

>I think I will need to refresh my mind further...<GRIN> before the exams
>come up...

>someone else in the know will answer anyway...

One could say, the photon's equvlant mass is equal to:
                         E=hf=mc2
Therefore, the mass of photon is equal to:
                        m=hf/c2= h/(lc)
where l is wave length, which is another way of stating schordinger's
equations for electron's wave length.
                          l=h/(mc)

>but before I leave I have another question that I have been pondering..

>- What would happen say if an electromagnetic wave's frequency
>approached infinity ...and hence it's wavelength approaches zero? in
>which case you would have a || situation where the sine wave becomes
>'parallel'....What happens in this situation?

        E=Lim(hf)->00
           f->00
and 
        m=Lim(hf/c2)->00
           f->00  
So, both the mass or the energy, which ever you like to think of it, go to
infinity.  That is if one photon of such wave hits the earth or any other
plant or star, it could send it out of orbit with infinite speed.  Off course
putting in more scientific speech , the probability of finding the plant in 
it's previous position vanishes to very close to zero. -:)

>- also has anyone ever wondered while apples and such similar fruit
>resemble a dipole magnetic field structure?...does this mean that the
>core is actually a bar magnet and all the structure of the apple aligns
>itself along the lines of magnetic field to produce the overall shape of
>the apple?

I do not think neither the apple nor the orange to be magnetic.  As a mater 
of fact, they seem to be diamagnetic.  However, you could do an experiment by
placing a strong magnet around several apple while they are growing and see
if it make any changes.  Ask this question in Sci.biology or something.

>till later
                    With highest regards,
                         Babak   Sehari.

P.S. Do you guys still have another Cowboy physist in your Dept? I finally,
could not figure out what was the shoot out for, in your Dept. last year?