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   Thomas Edison

   Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor, scientist and businessman who developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and a long-lasting, practical electric light bulb. ... Swan developed an incandescent light with a long lasting filament at about the same time as Edison, but it lacked the high resistance needed for central station DC service.
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   Dictation machine

   A dictation machine is a sound recording device most commonly used to record speech for later playback or to be typed into print. ... Shortly after Thomas Edison invented the phonograph, the first device for recording sound, in 1877, he thought that the main use for the new device would be for recording speech in business settings.
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   Edison Records

   Thomas A. Edison invented the phonograph, the first device for recording and playing back sound, in 1877. ... New machines were sold to play these records, as were attachments for modifying existing Edison phonographs.
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   Thomas Edison in popular culture

   Thomas Edison has appeared in popular culture as a character in novels, films, comics and video games. ... In the cartoon series Clone High, Thomas Edison's clone is shown as a short, sniveling nerd who seems to spend most of his time working with A.V equipment (a reference to the fact that Edison invented the projector).
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   Backmasking

   In 1877 Thomas Edison invented the phonograph, a device that allowed sound to be recorded and reproduced on a rotating cylinder with a stylus (or "needle") attached to a diaphragm mounted at the narrow end of a horn. ... His design overtook the Edison phonograph in the 1920s, since Berliner's patent expired in 1918, and others were then free to utilize his invention.
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   Sound recording and reproduction

   The first practical sound recording and reproduction device was the mechanical phonograph cylinder, invented by Thomas Edison in 1877 and patented in 1878. ... After the Edison phonograph itself, arguably the most significant advances in sound recording, were the electronic systems invented by two American scientists between 1900 and 1924.
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   1890s

   The 1890s were sometimes referred to as the "Mauve Decade," because William Henry Perkin's aniline dye allowed the widespread use of that colour in fashion, and also as the "Gay Nineties", under the then-current usage of the word "gay" which referred... ... 1893–1894: The Kinetoscope, an early motion picture exhibition device invented by Thomas Edison and developed...
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   Disc jockey

   In 1877, Charles Cros invented the phonograph in France (it was patented before Edison's invention but never built) and Thomas Alva Edison invented the phonograph cylinder, the first device to play back recorded sound, in the United States. ... In 1929, Thomas Edison ceased phonograph cylinder manufacture, ending the disc and cylinder rivalry.
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   George Westinghouse

   Westinghouse was one of Thomas Edison's main rivals in the early implementation of the American electricity system. ... In 1878 Edison invented an improved incandescent light bulb, and realized the need for an electrical distribution system to provide power for lighting.
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    Edisonian approach

    Edison did not just invent a light bulb, he invented an economically viable system of lighting including its generators, cables, metering and so on. ... A key to Edison's intellectual approach was to always doubt and never take things for granted.

Explore the following pages on Powerset:

• Thomas Edison,
• Dictation machine,
• Edison Records,
• Thomas Edison in popular culture,
• Backmasking,
• Sound recording and reproduction,
• 1890s,
• Disc jockey,
• George Westinghouse,
• Edisonian approach

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