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Tham khảo tài liệu 'the laser: the solution to manyproblems', ngoại ngữ, kỹ năng viết tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | The laser The Solution to Many Problems Like most people for many years I remained frightened of the laser perceiving it as a deadly device capable of enormous destruction. I recall a scene in a James Bond movie Goldfinger in which Bond who was tied to a table was nearly sliced in half by a laser beam. Since then other films and television shows have fuelled my fear of the laser by showing mad scientists who wanted to take over the world threatening to use huge laser devices to wipe out towns and strategic defence areas. Although the laser does have tremendous potential for destruction my unreasonable fear of the laser is fading. In recent years scientists have found that the laser has a wide variety of applications making it one of the most important inventions in the last quarter of a century for improving our quality of life. One important field in which the laser has many applications is communications. Scientists have found that the laser beam can transmit human voices as a result telephone companies are now using laser light signals to transmit telephone calls through extremely small cables that are capable of carrying many more transmissions than the standard telephone cables. An additional advantage is that these systems using the laser light signals will also be able to transmit video telephone conversations in the future. Another perhaps less known field in which lasers are helping improve the quality of life is metrology which .
