Re: waves cannot exists without medium


<n> wrote:
> "solar plexus" <r384923hr823h28eh@xxxxxx> wrote in message
> news:1115517097.586449.166680@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> >i dont think they have to multiply
>
> How could they not? Think of it this way. You "create" 100 photons
that go
> out in a spherical direction from the scource. Either the photons
have to
> get smaller and smaller as they go away to the point of infinity (is
that
> what happens?) or at some point when the photon reaches its smallest
point
> they would seperate one another which of course doesnt happen or we
wouldn't
> be able to focus on something light years away.

Close. The photons don't get smaller but they do get further apart from
each other. The density of photons falls like the square of the
distance just like you would expect, the total number of photons
staying constant and the surface area growing like the square of the
distance. The fact that we can still focus an image of a distant star
is a testament to how many photons are emitted by stars. When the star
is so distant that we really do only collect a handful of photons
during the exposure, then in fact we have a hard time imaging the star.


>
> Am i not understanding this because photons do go infinitely smaller
as they
> leave the scource? Seems impossible to me.

.

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