Презентация. "Inventions. Alexander Graham Bell"

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About scientist: Alexander Graham Bell is a British scientist who created the first telephone. He invented it in 1876. Alexander Graham Bell was born in Scotland in Edinburgh, March 3, 1847. All his life he was engaged in research in the field of physiology. He taught music and rhetoric, and helped the deaf. Later in 1873 he became interested in physics, and he came up with his phone model.

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About the first telephone: Bell’s apparatus was called "speaking telegraph". It was not like the modern phones. In Bell's invention there wasn’t the call. Calling occurred with the whistle. The scope of the phone was only 500 meters. In June 25, 1876 Alexander Graham Bell demonstrated his phone at the first World Electrical Exhibition in Philadelphia.

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Why he is popular? Alexander Graham Bell was a great inventor. He was clever, brave, responsive, creative and determined man. He helped a lot of young inventors and talented people. Thanks to his invention, people around the world can talk on the phone.