rickman wrote:
On 9/10/2015 3:03 AM, AndyW wrote:
On 09/09/2015 18:51, gareth wrote:
"gareth" wrote in message
...

AIUI, the wave / particle duality of the photon means that it has a
beginning
and an end, from the particle model.

The point of the duality model is that it appears to exist as both, or
may exist as something that exhibits the behaviour of both.

Don't want to be pedantic, but I think it is more that any given
experiment can show one or the other, but *not* both at once. Although
someone pointed out in another discussion that some experiment showed
both. It was an interference type of display, but the patterns were
formed of individual dots from individual photons. But I expect there is
another way to explain the results.... but above my pay grade.


Therefore, the wave model must exhibit amplitude modulation to have
such a
beginning and end.

Why must it?
It could have FM modulation or none at all. It could just start and end
(technically with a rectangular envelope but that would effectively be
no AM at all)
You do you claim it *must* have AM?

There is no reason to discuss this with him. He won't get what you are
saying. I guess he is picturing the quanta as a pulse of a wave which it *isn't*.

There is also little reason for me to point out the futility of
discussing this with Gareth. Every so often he starts a discussion and
the band starts playing. I don't know who is stupider, Gareth or the band.


Exactly, Evans is simply looking for an excuse to hurl his repertoire of
abuse. He often recycles old topics which have been explained to him
countless times in the past. Sometimes he digs up basic things he should
have mastered decades ago, eg the super regen, Or, as here, looks up a few
technical terms and launches into a topic he clearly has no knowledge of.