When.com Web Search

  1. Ads

    related to: thomas edison discoveries and inventions

Search results

  1. Results From The WOW.Com Content Network
  2. Thomas Edison - Wikipedia

    en.wikipedia.org/wiki/Thomas_Edison

    Edison in 1861. Thomas Edison was born in 1847 in Milan, Ohio, but grew up in Port Huron, Michigan, after the family moved there in 1854. [8] He was the seventh and last child of Samuel Ogden Edison Jr. (1804–1896, born in Marshalltown, Nova Scotia) and Nancy Matthews Elliott (1810–1871, born in Chenango County, New York).

  3. List of Edison patents - Wikipedia

    en.wikipedia.org/wiki/List_of_Edison_patents

    Most of these inventions were not completely original but improvements of earlier inventions. However, one of Edison's major innovations was the first industrial research and development lab, which was built in Menlo Park and West Orange. Throughout the 20th century, Edison was the world's most prolific inventor. At the beginning of the century ...

  4. Edisonian approach - Wikipedia

    en.wikipedia.org/wiki/Edisonian_approach

    Historian Thomas Hughes (1977) describes the features of Edison's method. In summary, they are: Hughes says, "In formulating problem-solving ideas, he was inventing; in developing inventions, his approach was akin to engineering; and in looking after financing and manufacturing and other post-invention and development activities, he was innovating."

  5. Timeline of electrical and electronic engineering - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_electrical_and...

    Thomas Edison discovers thermionic emission. This effect forms the basis for the vacuum tube and the cathode ray tube. approximately 1893: The selenium phototube invention allows the conversion of brightness values into electrical signals.

  6. Timeline of United States inventions (1890–1945) - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_United_States...

    Upton and Dibble were issued U.S. patent #436,961. Upton was an associate of Thomas Alva Edison, although there is no evidence that Edison contributed to this invention. [18] 1891 Incandescent lamp. One of the most dramatic improvements occurred in artificial lighting.

  7. Edison Ore-Milling Company - Wikipedia

    en.wikipedia.org/wiki/Edison_Ore-Milling_Company

    Edison operated an iron mine in the Franklin-Sterling Hill Mining District [4] near Ogdensburg, New Jersey under the New Jersey and Pennsylvania Concentrating Co. The Edison mine exploited a large low-grade magnetite deposit which had been mined since the 1770s, [4] which Edison and his engineers ground and concentrated. [5]

  8. Thomas Edison Conducted the First Job Interview in 1921 ... - AOL

    www.aol.com/2015/05/21/evolution-of-job-interviews

    Getty By Jacquelyn Smith The job interview was born in 1921, when Thomas Edison created a written test to evaluate job candidates' knowledge. Since then, the process has come a long way. "As the ...

  9. List of multiple discoveries - Wikipedia

    en.wikipedia.org/wiki/List_of_multiple_discoveries

    Merton contrasted a "multiple" with a "singleton"—a discovery that has been made uniquely by a single scientist or group of scientists working together. [5] The distinction may blur as science becomes increasingly collaborative. [6] A distinction is drawn between a discovery and an invention, as discussed for example by Bolesław Prus. [7]