Portal:Electronics
|
Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found. The field of electronics comprises the study and use of systems that operate by controlling the flow of electrons (or other charge carriers,e.g. electron holes) in devices such as thermionic valves and semiconductors. The design and construction of electronic circuits to solve practical problems is an integral technique in the field of electronics engineering and is equally important in hardware design for computer engineering. All applications of electronics involve the transmission of either information or power. Consumer electronics are electronic devices intended for consumer use. Consumer electronics usually find applications in entertainment, communications and office productivity. Consumer electronics are manufactured throughout the world, although there is a particularly high concentration of manufacturing activity in the Far East. One overriding characteristic of all consumer electronic products is the trend of ever-falling prices. This is driven by gains in manufacturing efficiency and automation, coupled with improvements in semiconductor design. Template:/box-footer Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found.  Michael Faraday, FRS (September 22, 1791 – August 25, 1867) was an English chemist and physicist who contributed significantly to the fields of electromagnetism and electrochemistry. He established that magnetism could affect rays of light and that there was an underlying relationship between the two phenomena. It was largely due to his efforts that electricity became viable for use in technology. The SI unit of capacitance, the farad, is named after him, as is the Faraday constant, the charge on a mole of electrons (about 96,485 coulombs). Faraday's law of induction states that a magnetic field changing in time creates a proportional electromotive force. Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found. Credit: commons:User:Inductiveload An electrical model of an electrolytic capacitor. Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found. Credit: User:Chameleon Map of the world colored by voltage and frequency.  August 14, 2014 512K Day arrives, surpassing some routers capacity, breaking the internet. More... November 19, 2008 The European Organization for Nuclear Research (CERN) said that repairing the Large Hadron Collider (LHC) will cost up to €16.6 million or US$21 million. More... April 30, 2008 HP Labs announces the creation of a Memristor, the fourth basic element of electronic circuits with the Resistor, Capacitor, and Inductor. December 4, 2007 On the third day of the 2007 Taipei IT Month in Taiwan yesterday, notebook computers and desktop computers built with AMD's Phenom processor and Intel Penryn processor openly battled for the consumer-market after each company launched their quad core processors. More... February 27, 2007 The new South Pole Telescope has recently collected its first light in a long-term project to learn about the nature of dark energy. More... Electronics - Consumer electronics - Engineering - Manufacturing - Symbols - Terminology - Units - Waste Theory: Ampère's law - Coulomb's law - Frequency - Hall effect - Joule's laws - Kirchhoff's laws - Millman's Theorem - Moore's Law - Norton's theorem - Ohm's law - Peukert's law - Resistance - Thévenin's theorem- Superposition - Wavelength Components: Antenna - Capacitor - Connectors - Diode - Fuse - Ground - Inductor - Integrated circuit - LCD - Magnetron - Memristor - Phased array - Printed circuit board - Resistor - Thermocouple - Transformer - Transistor - Switch - Wire Circuits: AC - Bridge - Designs - Diagrams - DC - Impedance - Load - Series and parallel - Voltage divider - Voltage drop Fields: Avionics - Computer systems - Control systems - Electromechanics - Microelectronics - Military - Optoelectronics - Power - Quantum electronics - Radio - Robotics - Semiconductors - Spintronics - Telecommunications Products: Cameras - Computers - Fiber optics - Lasers - Lights - Mobile phones - Printed circuit board - Radios - TVs Companies: AMD - Apple - Bose - Canon - Cray - Dell - Fujitsu - Garmin - HP - IBM - Intel - JVC - Kyocera - LG - Microsoft - Motorola - NEC - Nintendo - Philips - Pioneer - RadioShack - Samsung - Siemens - Sirius - Sony - Texas Instruments - Xerox People: Ampère - Becquerel - Bell - Coulomb - Edison - Einstein - Faraday - Gauss - Geiger - Hall - Henry - Hertz - Joule - Kirchhoff - Marconi - Moore - Ohm - Ørsted - Planck - Siemens - Tesla - Volta - Watt - Weber Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found.  Columbia is a supercomputer built by Silicon Graphics for NASA. The supercomputer was installed at the NASA Advanced Supercomputing facility in 2004. According to the TOP500 list, it is currently the eighth fastest computer in the world running at 51.87 teraflops, or 51.87 trillion floating point calculations per second. It is composed of twenty SGI Altix 3000 nodes each of which have 512 Intel Itanium 2 processors bringing the total number of processors to 10,240. It was named in honour of the crew of the space shuttle Columbia. Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found.  In electromagnetics and communications engineering, the term waveguide may refer to any linear structure that guides electromagnetic waves. However, the original and most common meaning is a hollow metal pipe used for this purpose. A dielectric waveguide employs a solid dielectric rod rather than a hollow pipe. An optical fibre is a dielectric guide designed to work at optical frequencies. Transmission lines such as microstrip, coplanar waveguide, stripline or coax may also be considered to be waveguides. The electromagnetic waves in (metal-pipe) waveguide may be imagined as travelling down the guide in a zig-zag path, being repeatedly reflected between opposite walls of the guide. For the particular case of rectangular waveguide, it is possible to base an exact analysis on this view. Propagation in dielectric waveguide may be viewed in the same way, with the waves confined to the dielectric by total internal reflection at its surface.  |
