Talk:Airbending/@comment-173.88.213.4-20120421185850/@comment-4910024-20120421190431

Yes, there can be "nothing"; it's called a vacuum. In theory, an airbender could remove the air from a person's lungs and block their trachea to prevent them from breathing. The person's own body would be the barrier that prevents more air from "rushing in".

I think your physics teacher may have failed you even more than mine failed me :(