Frozen smoke.And finally a Google suggestion I think you will like: aerogel aerogel, any of a group of extremely light and porous solid materials; the lightest is less than four times as dense as dry air. Aerogels are produced from certain gels (see colloid) by heating the gel under pressure, which causes the liquid in the gel to become . You may know it as the lowest density building material ever which can be anything from transparent through translucent translucent slightly penetrable by light rays. to opaque and has great insulation insulation (ĭn'səlā`shən, ĭn'sy  –), use of materials or devices to inhibit or prevent the conduction of heat or of electricity. qualities. It's pretty expensive and NASA NASA: see National Aeronautics and Space Administration. NASA in full National Aeronautics and Space Administration Independent U.S. has used it in space research but it seems to have started to take off in the architectural world: take a look at a UK commercial site at www.stoaks.co.uk which seems to suggest some interesting times ahead. Sutherland Lyall is at sutherland.lyall@btinternet.com |
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