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How Telephones Work

A brief description of how Telephones and phone networks work. This easy to understand page is part of HowStuffWorks.com and contains excellent graphics.

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Hits: 1373

http://www.howstuffworks.com/telephone.htm

How safe are Mobile Telephones?

A serious discussion on the possible health implications of using mobile telephones. These pages are maintained by Nokia.

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Hits: 801

http://www.nokia.com/safety/

Do we need the telephone?

Very interesting section about the telephone from the National Museum of Science and Industry covering intriguing history points.

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Hits: 959

http://www.ingenious.org.uk/Read/CommutingandCommunities/Doweneedthetelephone/

Radio waves and health

A discussion on the possible health implications of using mobile telephones.

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Hits: 1074

http://www.ericsson.com/ericsson/corporate_responsibility/health/

Can two cans and a string really be used to talk over a distance?

A simple explanation behind the tin can telephone and how to more modern technology works in a similar way.

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Hits: 15

http://www.howstuffworks.com/question410.htm

How Cordless Telephones Work

A brief description of how Cordless home phones work. This site is part of Marshall Brain's HowStuffWorks.com.

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Hits: 1096

http://www.howstuffworks.com/cordless-telephone.htm

Alexander Graham Bell: An Experiment In Creation

This is an excellent JAVA-based demonstration which aids in the understanding of key concepts behind Bell's invention of the telephone.

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Hits: 1742

http://cti.itc.virginia.edu/~meg3c/mazen/lesson.html

How Fax Machines Work: The Basic Idea

Fax machines scan your document and convert this into an electrical signal to be sent down a telephone line - but how does this work?

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Hits: 1199

http://communication.howstuffworks.com/fax-machine1.htm

Milestones in AT&T history

Milestones in the history of telecommunications, from the invention of the telephone to mobile phone networks.

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Hits: 742

http://www.att.com/history/milestones.html

Tin Can Telephone

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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Hits: 20

http://www.dsokids.com/activities-at-home/make-instrument/tin-can-telephone.aspx
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