10 Inventions that changed the World

May 14th, 2015
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1. The Telephone ; he telephone is an instrument that converts voice and sound signals into electrical impulses for transmission by wire to a different location, where another telephone receives the electrical impulses and turns them back into recognizable sounds. 2. Computers : There are many major milestones in the history of computers, starting with 1936, when Konrad Zuse built the first freely programmable computer.

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10 Invensions That Changed the World10 Inventions that changed the WorldThe Telephone The telephone is an instrument that converts voice and sound signals into electrical impulses for transmission by wire to a different location, where another telephone receives the electrical impulses and turns them back into recognizable sounds. In 1875, Alexander Graham Bell built the first telephone that transmitted electrically the human voice.The History of ComputersThere are many major milestones in the history of computers, starting with 1936, when Konrad Zuse built the first freely progra

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