It's the structure. This claim is easy to beat. I have a wrench here on my desk and taking the wrench and the house as the system, it's 99.999% air. Boom! T

It's the structure. This claim is easy to beat. I have a wrench here on my desk and taking the wrench and the house as the system, it's 99.999% air. Boom! There's nothing interesting here except the manufacturing process used to make such a thing.