😱 The solid is about 99% air 🤯. #aerogel #shorts

Indexado: 2026-05-19

[00:00:00]This solid block you see is about 99% air and it's one of the lightest solids on Earth. It's called Aerogel and it's even used by NASA in space missions.

[00:00:10]Aerogel is an extremely good insulator and can withstand very high temperatures and it's so light that it's often called solid smoke. Just a small sample of it costs around $25, but it's extremely fragile. Just pressing it too hard might crush it into powder. I won't ask you to subscribe, but thanks if you do.