Câu hỏi
Champagne, the king of wines and wine of kings, tastes all the better when it is drunk from an elegant, fine-quality glass. That, however, is only one of thousands of ways glass is used today. And for all those different uses, many different types of glass are produced. Glass products are manufactured in different ways. Today, glass is blown by hand in the traditional way which the Roman first developed, but now this work is done by robots, too. Generally, in industry, much faster methods of mass production are needed. Often, for example, glass is pressed into the necessary shape by machine. Glass is shaped in other ways too. For example, it is made into long, very thin fibres. Fibres like these are required to make the fibre-opitic cables that help to build the information Super-Highway around the world.
