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Aerogel looks like a slice of cloud

Aerogel is an ultralight material made from gel and gas. It’s been nicknamed “frozen smoke” or “solid cloud” because of its ethereal appearance.

Scientists have created more than a dozen recipes for different types of aerogel, but they all share a similar process: mix chemicals together, let them settle into a wet gel, and then suck all of the liquid out. The result is a substance of extremely low density that is actually 99 percent air.

Because it’s made primarily of air and air is such a terrible heat conductor, placing a layer of Aerogel between a flower and a flame will protect the flower from getting destroyed.

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