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A brief description of how Telephones and phone networks work. This easy to understand page is part of HowStuffWorks.com and contains excellent graphics.
A serious discussion on the possible health implications of using mobile telephones. These pages are maintained by Nokia.
Very interesting section about the telephone from the National Museum of Science and Industry covering intriguing history points.
A discussion on the possible health implications of using mobile telephones.
A simple explanation behind the tin can telephone and how to more modern technology works in a similar way.
A brief description of how Cordless home phones work. This site is part of Marshall Brain's HowStuffWorks.com.
This is an excellent JAVA-based demonstration which aids in the understanding of key concepts behind Bell's invention of the telephone.
Fax machines scan your document and convert this into an electrical signal to be sent down a telephone line - but how does this work?
Milestones in the history of telecommunications, from the invention of the telephone to mobile phone networks.
A really simple experiment to use old tin cans. This experiment is about sound and all you need is two metal cans and some string.
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