Science: Light Conversation

"Mr. Watson, come here! I want you!"

That command—shouted in 1876 by Alexander Graham Bell and heard in another room by his assistant, Thomas Watson, over Bell's first working telephone, was repeated in Boston last week. The occasion: an American Telephone and Telegraph banquet commemorating the 100th anniversary of the telephone. To demonstrate a century of progress, the teen-age descendants of Bell and Watson who re-enacted the historic moment then placed a call that was transmitted between two modern telephones not by electrical current or radio waves but by a beam of light passing through a hair-thin glass fiber. Proclaimed

AT&T Chairman John...

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