At 03:38 PM 2/2/2003 -0800, Pierce Nichols wrote:
Hrm... I'm inclined to take Gary's ideas with a grain of salt, but it passes the smell test. The question in my mind is how much more water, of course. I don't think you need (or would want) a grid of tiny, precise holes, but instead a material of a define porosity. It seems to me that you could source a metal foam to fit the bill.
I just remembered something else that probably decreases the amount of water required for any system. I'm sure most of you are familiar with the Leidenfrost <sp?> effect, aka film boiling. Basically, a thin film of water will protect an underlying surface from even more heat than you would normally effect, because the thin boiling layer at the surface of the liquid is a good insulator. This is what allows you to snuff out a candle with wet fingers, or even dip a wet hand in molten lead, without being burned.
-p
Mars or Bust!
www.marssociety.com
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