Aerogel is an extremely lightweight and porous material derived from a gel. But how is it made?

Aerogel is like a gel, but the liquid component of the gel is replaced with gas.

This results in a solid material that has a very low density and is composed of up to 99.8% air.

Despite its fragile appearance, aerogel is known for its remarkable insulating properties, making it one of the best thermal insulators available. It can be made from various substances, like silica, carbon, and metal oxides.

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