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Show Ordinary Glass Can Now Be Broken as Desired Ordinary glass is now made so that it will break in any desired manner, says Collier's. For instance, in-stance, pitchers, jars and other containers for the home are manufactured man-ufactured so that they will break in large pieces, lessening the danger of glass fragments getting into food. ' Some glass ceilings, like those in the National Gallery of Art in Washington, are constructed to shatter in powder form to eliminate elimi-nate the danger of injury from falling pieces. |