51.1 MB (3.3 MB compressed)
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30.7 x 41.7 cm ⏐ 12.1 x 16.4 in (300dpi)
LAWRENCE LIVERMORE LABORATORY / SCIENCE PHOTO LIBRARY LAWRENCE LIVERMORE LABORATORY / SCIENCE PHOTO LIBRARY
Silica aerogel. Demonstration of the light weight of aerogel (blue) seen here resting on whipped egg whites. Aerogel is a new material which has very high thermal insulation and extremely low mass. It is made by drying a water-based or alcohol-based gel in a superfluid process that prevents the gel from collapsing. The resulting block of linked microscopic fibres contains about 90% air, so is very lightweight, but retains quite a high strength. Aerogel is being studied as a thermal insulator and as a holding medium for nuclear fusion fuel.
Model release not required. Property release not required.