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During the Fourth International Conference of Electricians in Chicago, electrical units were defined 1893: English physicist J. J. Thomson invented waveguides. 1894: Italian inventor Guglielmo Marconi begins developing the first radio wave based wireless telegraphy communication system [6] [7] 1895
This is a list of emerging technologies, which are in-development technical innovations that have significant potential in their applications. The criteria for this list is that the technology must: Exist in some way; purely hypothetical technologies cannot be considered emerging and should be covered in the list of hypothetical technologies ...
A timeline of United States inventions (after 1991) encompasses the ingenuity and innovative advancements of the United States within a historical context, dating from the Contemporary era to the present day, which have been achieved by inventors who are either native-born or naturalized citizens of the United States.
The timeline of historic inventions is a chronological list of particularly significant technological inventions and their inventors, where known. [ a ] The dates in this article make frequent use of the units mya and kya , which refer to millions and thousands of years ago, respectively.
1907 – Alternating-Current Electrification of the New York, New Haven and Hartford Railroad; 1909 – Shoshone Transmission Line; 1909 – World's First Reliable Hight Voltage Power Fuse; 1911 – Discovery of superconductivity; 1914 – Panama Canal Electrical and Control Installations; 1915–1918 – Invention of Sonar; 1916 ...
Below is a list of Edison patents. Thomas Edison was an inventor who accumulated 2,332 [ 1 ] patents worldwide for his inventions . 1,093 of Edison's patents were in the United States , but other patents were approved in countries around the globe.
Joseph John O'Connell (1861–1959), U.S. – number of inventions relating to telephony and electrical engineering Theophil Wilgodt Odhner (1845–1903), Sweden/Russia – the Odhner Arithmometer , a mechanical calculator
This is a list of obsolete technology, superseded by newer technologies. Obsolescence is defined as the "transition from available to unavailable from the manufacturer in accordance with the original specification." [1] Newer technologies can mostly be considered as disruptive innovation. Many older technologies co-exist with newer alternatives ...