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Show Ordinary Glass Can Now Be Broken as Desired Ordinary glass is now made feo 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. |