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Publication date: 7 June 2007

John D. Branch

As [Alexander Graham] Bell raced to perfect his telephone, he was also writing up specifications to be filed with the United States Patent Office in Washington. On March 7, 1876…

Abstract

As [Alexander Graham] Bell raced to perfect his telephone, he was also writing up specifications to be filed with the United States Patent Office in Washington. On March 7, 1876, he was issued patent number 174,465. Meanwhile, Bell had discovered that a wire vibrated by the voice while partially immersed in a conducting liquid, like mercury, could be made to vary its resistance and produce an undulating current. In other words, human speech could be transmitted over a wire. On March 10, 1876, as he and Mr. Watson set out to test this finding, Bell knocked over what they were using as a transmitting liquid – battery acid. Reacting to the spilled acid, Mr. Bell is alleged to have shouted, “Mr. Watson, come here. I want you!” (PBS, 2003)

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Consumer Culture Theory
Type: Book
ISBN: 978-1-84855-984-4

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