Doug Miller wrote:
In article , "Leon"
wrote:


You are on the right track.
Actually the compressed air does not create the condensation. It is
the heat generated from compressing the humid air that causes the
condensation.

Incorrect. It is *exactly* the compression that causes the condensation:
water that is vapor at ambient pressure can be condensed into liquid by
increasing the pressure.



So Doug, I suspect you believe it is the pressure from "your firm grip" on
a glass of ice water that causes the warm humid air surrounding the glass to
cause condensation on the cool side of the glass.