PHILADELPHIA, Aug. 20 (UPI) -- The world's lightest solid material may bring refrigerators with thinner walls, better building insulation and other products, U.S. researchers say.
Mary Ann B. Meador of the NASA Glenn Research Center in Cleveland reported on the development of a new flexible "aerogel" -- a material so light it has been dubbed "solid smoke" -- at the annual meeting of the American Chemical Society in Philadelphia Sunday.