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The Hungarian engineer Dénes Mihály patented an image scanning with line deflection, in which each point of an image is scanned ten times per second by a selenium cell. August Karolus (1893–1972) invents the Kerr cell, an almost inertia-free conversion of electrical pulses into light signals. He was granted a patent for his method of ...
1947 – Invention of the First Transistor at Bell Telephone Laboratories, Inc. 1947 – Invention of Holography; 1948 – Birth of the Barcode; 1948 – The Discovery of the Principle of Self-Complementarity in Antennas and the Mushiake Relationship; 1948 – First Atomic Clock; 1948–1951 – Manchester University "Baby" Computer and its ...
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.
Engineering advances in the 1880s, including the invention of the transformer, led to electric utilities starting to adopting alternating current, up until then used primarily in arc lighting systems, as a distribution standard for outdoor and indoor lighting (eventually replacing direct current for such purposes).
The following outline is provided as an overview of and topical guide to electrical engineering. Electrical engineering – field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism. The field first became an identifiable occupation in the late nineteenth century after ...
Chart of the International Morse code letters and numerals. 1836 – William Fothergill Cooke invents a mechanical telegraph. 1837 with Charles Wheatstone invents the Cooke and Wheatstone needle telegraph. 1838 the Cooke and Wheatstone telegraph becomes the first commercial telegraph in the world when it is installed on the Great Western Railway.
Timeline of telescopes, observatories, and observing technology; Timeline of temperature and pressure measurement technology; Timeline of cultivation and domestication in South and West Asia; Timeline of global surveillance disclosures (2013–present) Timeline of online video; Timeline of the introduction of color television in countries and ...
Category: History of electrical engineering. 12 languages. ... Timeline of electrical and electronic engineering; Timeline of the UK electricity supply industry; V.