Determining which pane is cracked
This can be accomplished by placing the
point of an object such as a pencil on the crack, and then moving the observer's
head position while focusing on the point of the object. If the crack appears to
move relative to the point of the object, the crack is not in the inner pane. If the
crack does not appear to move relative to the point of the object, the crack is in the
inner pane. A crack in the inner pane may also be detected by running a fingernail
across the window's surface.
Last edited by howflytrg; 20th Feb 2007 at 20:57.