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  • ...ium]], [[Hammond B3]], and the [[electric guitar]], whereas examples of an electronic instrument are a [[Theremin]], [[synthesizer]], and a [[computer]]. ...Professor [[LĂ©on Theremin|Leon Theremin]] around 1919-1920. Another early electronic instrument was the [[Ondes Martenot]], which was used in the ''[[TurangalĂ®
    23 KB (3,396 words) - 19:17, 15 September 2017
  • ... developed for use in diverse ways. Their applications range from portable electronic devices to automobiles and space probes. A British chemist named [[John Frederic Daniell]] searched for a way to eliminate gas buildup in the Voltaic pile. His solution was
    31 KB (4,897 words) - 17:49, 28 July 2019
  • ...ave given birth to new approaches for [[teaching]] and [[learning]]. For research in various fields, computer science has greatly enhanced the processes of d ...en with a degree in calculus, were employed in commerce, government, and research establishments. After the 1920s, the expression ''computing machine'' was a
    21 KB (2,948 words) - 15:19, 17 March 2017
  • ...ross the [[crystal lattice]]. If the material is not [[Short circuit|short-circuited]], the applied charge induces a [[voltage]] across the material. The word ...uch as the production and detection of sound, generation of high voltages, electronic frequency generation, [[microbalance|microbalances]], and ultra fine focusi
    25 KB (3,521 words) - 16:30, 28 March 2019
  • ... many types of projects, including the production of spacecrafts, bridges, electronic chips, robots, and large software products.]] ...services and other industries as well. Similar fields include operations research, systems engineering, ergonomics, process engineering and quality engineeri
    18 KB (2,593 words) - 00:11, 3 March 2018
  • ...ekeland]], a Belgian-born American living in New York state, was a chemist searching for insulating shellac to coat wires in electric motors and generators. ...s insulating and heat-resistant properties. For example, some electronic [[circuit board]]s are made of sheets of paper or cloth impregnated with phenolic res
    34 KB (5,274 words) - 21:17, 29 March 2019
  • ...seful in many applications in [[materials science]], [[nanotechnology]], [[electronics]], [[optics]], and [[architecture]]. Their usage, however, may be limited ... the initial buzz that is now associated with carbon nanotubes. Nanotube research accelerated greatly following the independent discoveries<ref>D.S. Bethune,
    63 KB (8,933 words) - 22:14, 19 December 2019
  • ...y-astr.gsu.edu. Retrieved November 15, 2008.</ref><ref>TechTarget, [http://searchsmb.techtarget.com/sDefinition/0,290660,sid44_gci763586,00.html What is magn ...s in [[magnetic circuits]]. It is typically not used outside of electrical circuits, though, because the magnetic <math>\mathbf{B}</math> field truly is the m
    54 KB (8,757 words) - 18:09, 7 August 2018
  • ... main inventions were the [[regenerative circuit]], the super-regenerative circuit, the [[superheterodyne]] receiver, and [[FM]] radio. Unfortunately, his lif ...r in college at Columbia University, New York City, the super-regenerative circuit (patented 1922), and the [[superheterodyne receiver]] (patented 1918). (The
    11 KB (1,719 words) - 15:42, 21 September 2017
  • ...uction coil or transformer with the transmitter and battery in the primary circuit. The patent was granted after a 15 year delay due to litigation. In 1892, a *1886: Gilliland's '''automatic circuit changer''' is put into service between [[Worcester]] and [[Leicester]], all
    25 KB (3,661 words) - 18:43, 21 January 2020
  • ...Douglas Harper, 2001. [http://www.etymonline.com/index.php?search=spectrum&searchmode=none Spectrum]. ''Online Etymology Dictionary''. Retrieved October 17, ...atic electric/magnetic [[ion trap]]) where they effectively form part of a circuit. Detectors at fixed positions in space measure the electrical signal of ion
    44 KB (6,414 words) - 14:49, 31 August 2018
  • ...er from a life-boat at sea or from an isolated land location (signalling a searching rescue aircraft). ...code has been in use for more than 160 years &mdash; longer than any other electronic encoding system|left}}. What is called Morse code today is actually somewha
    27 KB (4,127 words) - 23:26, 23 October 2018
  • ...rated the development of Electronics to such an extent that electrical and electronics engineers currently outnumber their colleagues of any other Engineering sp ...ing through development of [[World War I]] military aircraft. Meanwhile, research to provide fundamental background science continued by combining [[theoreti
    41 KB (5,822 words) - 16:24, 6 September 2017
  • ... first publicly demonstrated color television system; and the first purely electronic color television picture tube. Baird's early technological successes and hi ...amily left London for the safety of [[Cornwall]], where he continued his research on television at his own expense.<ref name=final>Malcolm Baird, [http://www
    27 KB (3,908 words) - 20:01, 18 May 2018
  • ...r, gallium arsenide is an important [[semiconductor]] used in [[integrated circuit]]s, and appropriately formulated arsenic trioxide was recently approved for ...ime can lead to a condition known as ''arsenicosis'' and eventual death. Researchers have devised tests for arsenic in water and ways to remove the toxic mat
    21 KB (2,933 words) - 15:48, 15 April 2016
  • ... [[information]] resources and provides various services, such as [[e-mail|electronic mail]], [[online chat]], [[file transfer]] and [[file sharing]], [[online g ...d the [[Information Processing Technology Office]] (IPTO) to further the research of the [[Semi Automatic Ground Environment]] (SAGE) program, which had netw
    49 KB (7,408 words) - 21:07, 16 July 2019
  • == Electronic calculators== ...d [[integrated circuit]] logic. Today, most calculators are hand held microelectronic devices.
    25 KB (3,533 words) - 20:22, 24 December 2016
  • ...rmanide is becoming an important semiconductor for high-speed [[integrated circuit]]s. ...oor to countless applications in [[solid state (electronics)|solid state]] electronics. From 1950 through the early 1970s, this area provided an increasing marke
    13 KB (1,672 words) - 20:25, 20 June 2017
  • ...suit of the patterns he found in nature continued throughout his life. His search for nature's coordinate system, and mankind's role in the universe began wh ...t housing, and published his first book, ''4-D Timelock,'' established a research and development company, and began developing his "energetic/synergetic geo
    37 KB (5,682 words) - 15:59, 20 December 2016
  • ==History of research== ===Continuing research===
    51 KB (7,623 words) - 16:46, 6 July 2018

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