The Geese Are Cooked

摘要

The road to the world's warmest, thinnest outdoor gear has been a long one. In 1931 American chemical engineer Samuel Kistler invented the lightest known solid-an aerogel-by drying a form of silicon dioxide (a raw material for glass) under intense pressure and high temperature. His invention was 96% air and turned out to be an excellent insulator. This fall apparel maker Russell Outdoors will begin selling, for $400, a superthin hunting jacket made of a material containing aerogels.