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.
Posted 4 years ago by boyt in category: interesting   Comments (0)





Stabilizers are used to reduce the amount of roll experienced by large ships. This video looks at a few different stabilization techniques. We investigate how different methods work and how successful they are at reducing a roll.
Posted 4 years ago by gymnocladus in category: interesting   Comments (0)


The Pipe Organ
Posted 4 years ago by nypd in category: interesting   Comments (0)