Vacuum Physics??? I would like some clarity on a problem I think is attributed to a vacuum space. This is what happened...I have a small room that is 7' x 10', there are two metal doors directly across from each other on opposites sides of the room. It seems that when I want to close the door fast the air within keeps the door from closing but I can close it if I do it slowly. My problem is that my daughter slammed the door with significant force and it did close, however there are double pane windows in that room as well and one of the windows now has a crack in it (the inside side of the double pane glass---inside the room). Could the vacuum force when she slammed the door caused the glass to crack?