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Shading and insulating are undoubtedly useful. One question would be: what supports the bubbles' physical integrity? If the idea is to constantly replenish them, what is the energy required to do so? What is the insulation value of a collection of bubbles? Interesting idea, though.

paul spencer
by paul spencer (spencerinthegorge AT yahoo DOT com) on Tue Dec 4th, 2007 at 05:22:54 PM EST
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