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Investigating the World's Lightest Solid

Video   Jun 14, 2019 | Original video from Veritasium

 

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 aerogels are now technically the lightest.


 
Original video from Veritasium via YouTube
 
 
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