I would imagine warm air would be better because of density. There will be less conduction of heat if the molecules (of whatever) are farther apart. This would make your evacuated containers the best thing available.
__________________
Current project -
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
&
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
|