Web Reference: An aerogel material can range from 50% to 99.98% air by volume, but in practice most aerogels exhibit somewhere between 90 and 99.8% porosity. [12] Aerogels have a porous solid network that contains air pockets, with the air pockets taking up the majority of space within the material. Since they are 99% air, and air is such a terrible heat conductor, aerogels have excellent insulating properties. A protective layer of aerogel will protect a flower from fire. Aerogel is a groundbreaking material known as the lightest solid on Earth. Composed of up to 99.8% air by volume, it’s often called “ frozen smoke ” or “ solid cloud ” due to its ethereal appearance and featherlight feel.
YouTube Excerpt: Aerogels are the world's lightest (least dense)
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This Solid Is 99 Air Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $18M - $40M
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Last Updated: May 17, 2026
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