3 ms·
Idea: how about super-heated air in a balloon lined with aerogels to act as an insulator. Air at 1000f is a third as dense as air at 200f.
by cookingrobot 13y ago
Idea: how about super-heated air in a balloon lined with aerogels to act as an insulator.
Air at 1000f is a third as dense as air at 200f.