Thomas Edison


Thomas Edison.


Phonograph Edison demonstrated his invention on November 29, 1877 and patented on February 19, 1878.

Thomas Edison had a vision to build a house almost entirely of cement. Without cement mixing device, Edison would not have been able to realize his plan, so according to the principle: "the need for the mother of invention", invented the world's first mixer.

  • Physics Presentations
  • MS PowerPoint 683 KB
  • 2017 m.
  • English
  • 10 pages (340 words)
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  • Thomas Edison
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Citation
Thomas Edison. (March 17, 2017). https://documents.exchange/thomas-edison/ Reviewed on 09:15, February 3 2025
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