A world without telephones Find out how you can thank inventor Alexander Graham Bell for every ringtone! Filled with facts and photos, Bell's story highlights the scientific process he followed, failures and all, from identifying a problem to getting his communication technology into the hands of users.
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A world without telephones Find out how you can thank inventor Alexander Graham Bell for every ringtone! Filled with facts and photos, Bell's story highlights the scientific process he followed, failures and all, from identifying a problem to getting his communication technology into the hands of users.
543543
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