The picture:
The picture was created by Niepce and perfected by dagger and was initially known as DAGUERREOTYPE its principle is based on the ability of certain elemntos, suchas deplata bromide, to registar on a plate sencible through the passage of light through a camera obscura.
The technology was perfected to the photograph, with the changes and advances in cameras, lenses, rolls of film and digitizing.
Cinema:
cinema since the invention of photography will try to reflect moving images, this scene got signed to 16 frames per second and projected to the same rhythm.
the inventors of this were the Lumiere brothers in 1895 but was MELIES who perfected the system and add tricks, montages, melted and colors.
the first films were silent and black and white, it stood out CHARLES CHAPLIN, the first sound was "singing jazz in 1827. the film industry had its empire in Hollywood where some of the main producers were WB, 20th Fox, Paramount, MGM. With the emergence of the crisis began caseterra video film and sought to reverse the incorporation of special effects: 3D, Cinerama screen.
Radio:
In 1895 Guglielmo Marconi began to transmit electrical vibrations important distances using electromagnetic waves. in our country was first broadcast in 1920 from the terrace of the Coliseum Theater, who performed this feat are called madmen off the roof.
the incorporation of radio equipment was massive homes, served the function of transmitting information to entertain and live.
The radio broadcast on two frequencies:
amplitude modulated (AM) and frequency modulation (FM)
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