On March 10, 1876 Alexander Graham Bell revolutionized the way we communicate when the first discernible human voice traveled over wire from one person to another.
Interesting Engineering on MSN
150 years of telephone: How Alexander Graham Bell’s first call changed human history
About 150 years ago, in a small, crowded laboratory, a revolutionary moment occurred when ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results