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Whether or not an object that is immersed in the atmosphere, (i.e. a light
ray that starts with an index of refraction measurably greater than 1.0....)
shows up higher or lower depends on the weather between it and the observer.


I don't think that you can say always in that case.

John


----- Original Message -----
From: "Fred Hebard" 
To: 
Sent: Wednesday, July 07, 2004 10:00 AM
Subject: Re: Refraction.


> George,
>
> I for one am enjoying the discussion.  I am rather convinced, being a
> non expert in these matters, by John's arguments, but I wonder whether
> he would be so kind as to address the issue of a ship on the horizon,
> for instance.  Would it always appear higher than it really is?
>
> Thanks,
>
> Fred
>
> On Jul 7, 2004, at 12:45 PM, George Huxtable wrote:
>
> > John Brenneise and I seem to have started a bit of a discussion
> > between us
> > about refraction in the atmosphere. It's the sort of in-principle
> > argument
> > that I rather enjoy (and I hope John does too), but may well drive
> > others
> > up the wall.
> >
> > As it's got somewhat esoteric by now, I propose to take it off-list,
> > to a
> > private discussion between the two of us, unless anyone objects. But if
> > anyone else happens to be following it or wishes to participate,
> > please say
> > so on-list and I will reconsider.
> >
> > George.
> >
> >
> > ================================================================
> > contact George Huxtable by email at george@huxtable.u-net.com, by
> > phone at
> > 01865 820222 (from outside UK, +44 1865 820222), or by mail at 1 Sandy
> > Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
> > ================================================================
> >

   

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