| Title | : | World's Lightest Solid! |
| Duration | : | 12 minutes, 2 seconds |
| Uploader | : | Veritasium |
| Added On: | : | 31 May, 2019 |
| Views | : | 60.4M times |
| Likes | : | 0 |
| Source | : | YouTube |
Aerogels are the world's lightest (least dense) solids. They are also excellent thermal insulators and have been used in numerous Mars missions and the Stardust comet particle-return mission. The focus of this video is silica aerogels, though graphene aer
