The neck of a balloon is connected to the opening of a half-gallon can, which sits on a stand. When you light the Méker burner and place it under the can, the heated air in the can expands and blows up the balloon, which had been flaccid before.
The neck of a balloon is connected to the opening of a half-gallon can, which sits on a stand. When you light the Méker burner and place it under the can, the heated air in the can expands and blows up the balloon, which had been flaccid before.