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Aerogel Protects Matches From Igniting

Aerogel is the lightest solid material known - only three times the density of air - and has tremendous insulating capability as demonstrated in this photo. A block the size of a person weighs less than a pound, but is able to support weight of a half-ton subcompact car.

Additional information:

http://science.nasa.gov/newhome/headlines/msad08jul97_2.htm