Klutzes of the world rejoice: a new type of "unbreakable" wineglass is here to save you from yourselves. French glass and tableware manufacturer Arc International, www.arc-international.com , has developed
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a handblown crystal that it says is hard enough to be banged vigorously and repeatedly on a table or floor without breaking. That's not the
only advantage of the new material, which Arc has dubbed Kwarx (the formula is a trade secret). The color of wine is said to be more faithfully perceived because of Kwarx's perfect neutrality on the chromatic scale, and the material has...