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Alexander Graham Bell's telephone was the first of its kind to receive a patent in the United States and gain widespread commercial success. Bell was interested in sound on a conceptual level and used an observation abou... More »

Blizzards are winter storms characterized by blowing snow, less than quarter of a mile of visibility outdoors and strong winds moving 35 mph or faster, according to the National Weather Service. The word "blizzard" once ... More »

Azerbaijan is a small country located on the Eurasia continent and was formerly part of the USSR. It fought with Armenia from 1988 to 1994 over a small, autonomous region within its borders with a primarily Armenian popu... More »

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The first working loudspeaker was invented by Alexander Graham Bell who incorporated the device into his other famous invention, the telephone. Bell was awarded the patent for the telephone in 1876 with the loudspeaker d... More »

Alexander Graham Bell's role as a teacher for deaf individuals and the presence of his deaf wife and mother inspired him to develop his electrical speech machine, or telephone. In addition, Bell's grandfather, father and... More »

Alexander Graham Bell created the telephone through many years of experimentation with sound waves. Bell got the idea from the phonautograph that he had invented prior to draw sound waves, and this inspired him to think ... More »

Invented by Alexander Graham Bell in 1876, the telephone has changed significantly since then with mobile devices being ubiquitous in the 21st century and these devices including numerous other functions besides voice co... More »