Telephone

By hfxklinge6

  • First telephone

    First telephone
    Alexander Graham Bell invented the first working telephone on June 2nd, 1876. In this picture, is the first sketch of the telephone drawn by Alexander Graham Bell. Alaxander Graham Bell began his experiments in 1873-1874. The first sound heard over a wire was in 1875.

  • Invention of the Photophone

    Invention of the Photophone
    Invented by Alexander Graham Bell.First wireless telephone. The device aloud transmission of sound of a beam of light. Bells instroment worked by projecting voice towards a mirror. Vibrations in the sound caused vibrations in the mirror.Bell directed sunlight to the mirror and the mirror captured and projected the mirrors vibrations.

  • Detroit police commenced regular one-way radio communication between patrol cars

    Detroit police commenced regular one-way radio communication between patrol cars
    In 1928, a dedicated policeman and his electronics bluff devised the first succesfull radio communication between patrol cars and police stations. Product took 7 years to make.The work proved the practility of land-mobile radio communication.

  • first commercial touch screen phone available

    first commercial touch screen phone available
    Developed by Doctor Sam Hurst. He developed it at the University of Kentucky. Sensor was called "Elograph".

  • First cellular network launched in Japan

    First cellular network launched in Japan
    The first pre-commercial 3G network was launched by Japan. The first commercial launch of 3G was also by NTT DoCoMo in Japan on October 1, 2001, although it was initially somewhat limited. broader availability was delayed by apparent concerns over reliability.

  • Iphone, New telephone

    Iphone, New telephone
    There are a lot of updated telephones. The one shown in this picture is called a Iphone. The Iphone, has many differant abilities that make it a nice phone to have. You can download applications, also called apps, that are games that you can download from the app store anywhere. You can record videos on the iphone, and share them on myspace or facebook. The iphone features a 3-megapixel camera. The Iphone can be used as a phone, or a Ipod.