Re: Photo tips for Antarctica?

Floyd L. Davidson wrote:
Chris Malcolm <cam@xxxxxxxxxxxxxxxxx> wrote:
If it was trapped there wouldn't be a gradient. What
causes the gradient is the *movement* of the water vapour.

If it *isn't* trapped, there can be no gradient, and it
is insufficient movement that causes a gradient. (I.e.,
you have it exactly backwards, again.)

If there is sufficient air movement, the vapor is
equally dispersed. If movement is impeded, a gradient
can form.

a temperature gradient can be fatal.

Well, I guess we are all dead ;-)

consider:

{warm body, temp=A} {insulation} {cold, temp=B}

By definition, if A not equal B there must be a temperature
gradient!

Basic math and physics.

Roger
.

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