00:00If you apply this secret gel on your body, you won't get wet. You won't even catch fire. But how?
00:05It's called aerogel, the lightest solid on earth. And it's made by removing the liquid from a gel,
00:11leaving behind a web of pure silica that's 99.8% air. That's why it's nearly invisible and feels
00:17like holding nothing. You can put your bare hand on top, fire blazing right underneath,
00:22and feel nothing. It's solid, but if you apply little force, it will shatter into dust.
00:27But why do we need it? Because climate disasters and wildfires are becoming more common. This gel
00:32could be the key to fireproof suits, disaster armor, and even protecting astronauts in space.
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