The science behind how a mobile phone works
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YouTubeThe Telegraph
The science behind how a mobile phone works
In this video we reveal how a mobile phone actually works, explaining how the device uses radio waves to transmit and receive signals and how a mobile phone turns your voice into an electronic signal when you speak into it. Get the latest headlines: http://www.telegraph.co.uk/ Subscribe: http://www.youtube.com/subscription_center?add_user ...
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