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 A radio is the transmission of signals by modulation of electromagnetic waves with frequencies below these of visible light.

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Presentation on theme: " A radio is the transmission of signals by modulation of electromagnetic waves with frequencies below these of visible light."— Presentation transcript:

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2  A radio is the transmission of signals by modulation of electromagnetic waves with frequencies below these of visible light.

3  The inventors are: › James Clerk Maxwell › Heinrich Rudolph Hertz › Mahlon Loomis › Guglielmo Marconi › Nikola Tesla  The Influence  Influenced by the telegraph and the telephone.

4 A radio that was once referred to as an wireless telegraph, has known evolved over time. The radios has influenced new devices such as the boom box, walkman, CD player, and the IPod.

5 HHow The Radio Influences Us ›T›The radio has the power to influence what we see an hear about world events. ›T›The radio is mostly were Americas get their news, information, and entertainment.  The Effect  When the audiences or Americans react to the material they hear, people engage in having debates and problems.

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7  The radio began in the late 1800’s. The radio is the transmission of electromagnetic waves with frequencies below those of visible light. The radio was influence by the telegraph and the telephone. The inventors were James Clerk Maxwell, Heinrich Rudolph Hertz, Mahlon Loomis, Guglielmo Marconi, and Nikola Tesla. Radio’s was once referred to as a wireless telegraphy. The radio has influenced a lot of new devices such as the boom box, walk man, CD player, and now the iPod. The radio is where people get most of their news, information, and entertainment. The radio has the power to influence what we see and hear about world events. What everybody doesn’t know is the radio has a bad effect on us. When people hear the gossip they hear on the radio they engage in having debates and conflicts. The reason that I have chosen this topic is because I thought that it would be interesting to know where my iPod has come from. Also because I wanted to do something that has been around even before I was born.

8  http://www.apple.com/ipodtouch/gallery/ http://www.apple.com/ipodtouch/gallery/  http://personal.georgiasouthern.edu/~ic00008/pagetwo.html http://personal.georgiasouthern.edu/~ic00008/pagetwo.html  http://blogs.sacbee.com/the_state_worker/2008/08/ http://blogs.sacbee.com/the_state_worker/2008/08/  http://bindapple.com/wp-content/uploads/2009/11/ipod_heart.jpg http://bindapple.com/wp-content/uploads/2009/11/ipod_heart.jpg  http://www.appleinsider.com/article.php?id=2134 http://www.appleinsider.com/article.php?id=2134  http://www.privateline.com/PCS/images/hughesmachine http://www.privateline.com/PCS/images/hughesmachine  http://www.ubergizmo.com/15/archives/2006/09/apple http://www.ubergizmo.com/15/archives/2006/09/apple  http://en.alexperts.com http://en.alexperts.com  www.vistech.net www.vistech.net  www.inventors.about.com www.inventors.about.com  http://didyouknow.org http://didyouknow.org


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