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Last updated on April 17, 2014 at 17:30 EDT
Flat Surface Turned Into Spherical Antenna Using New Device

Flat Surface Turned Into Spherical Antenna Using New Device

By Jason Bardi, American Institute of Physics Broadband transformational optics lens, described in Applied Physics Letters, may lead to antenna dishes that are flat or conform to any surface By depositing an array of tiny, metallic,...

Latest Electromagnetism Stories

2014-04-17 16:23:07

Work on Distribution and Transmission Systems Will Help Enhance Service Reliability for West Virginia Customers FAIRMONT, W.Va., April 17, 2014 /PRNewswire/ -- FirstEnergy Corp. (NYSE: FE) subsidiaries Mon Power and Potomac Edison have received authorization for a new tree trimming program to help lessen the frequency and duration of power outages associated with storms in their West Virginia service areas. The program was recently approved by the Public Service Commission (PSC)...

2014-04-17 16:21:28

DUBLIN, April 17, 2014 /PRNewswire/ -- Research and Markets ( http://www.researchandmarkets.com/research/4hh9lq/global_automotive) has announced the addition of the "Global Automotive Halogen Lighting Market 2014-2018" [http://www.researchandmarkets.com/research/4hh9lq/global_automotive ] report to their offering. <start_newscom> (Logo: http://photos.prnewswire.com/prnh/20130307/600769 ) The analysts forecast the Global Automotive Halogen Lighting market to...

2014-04-17 13:44:19

Efficient conversion from magnetic storage to light is key Inexpensive computers, cell phones and other systems that substitute flexible plastic for silicon chips may be one step closer to reality, thanks to research published on April 16 in the journal Nature Communications. The paper describes a new proposal by University of Iowa researchers and their colleagues at New York University for overcoming a major obstacle to the development of such plastic devices—the large amount of...

2014-04-16 23:13:02

Attend the roundtable to learn more about UV LED technology. Hillsboro, Oregon (PRWEB) April 16, 2014 Bill Cortelyou, President and CEO at Phoseon Technology will be participating in the UV LED Global Roundtable at 10 a.m. on May 13. The Global Roundtable is an engaging discussion about the promise, the challenges and the accomplishments of UV LED technology. The six panelists represent suppliers of UV LEDs and conventional UV lamps, ink and coating formulators and innovative end users...

2014-04-16 23:08:04

RedVector Launches Final Component of the 2014 NEC Code Change Course Series to Inform Professionals of New Electrical Standards Tampa, Fla. (PRWEB) April 16, 2014 RedVector.com, the leader in online continuing education and workforce training solutions for the architecture, engineering and construction (AEC) industries, launched new National Electrical Code (NEC) change coursework this month, closing out its 2014 series of NEC change eLearning. First published in the late 1800s, The NEC...

2014-04-16 23:05:14

Macromatic redesigns Three-Phase Monitor Relays to protect equipment from voltage faults. Menomonee Falls, WI (PRWEB) April 16, 2014 Macromatic Industrial Controls announced today its next generation of Plug-In Three-Phase Monitor Relays which provide protection for motors against premature failure caused by voltage faults. The new Three-Phase Monitor Relay family of products delivers significant enhancements and exclusive features to protect against voltage drops and surges, as well as,...

2014-04-16 23:04:54

NuForce releases Primo 8, new flagship in-ear headphones that provide stellar bass, captivating mids and delicate highs to envelop the listener in musical textures almost real enough to touch. The Primo 8 excels in its ability to reproduce vocals unlike any other in-ear headphones on the market, today. Fremont, CA (PRWEB) April 16, 2014 NuForce Inc., a leader in professional and consumer audio gear, announces the release of Primo 8, its new flagship audiophile-quality in-ear headphones....

2014-04-16 20:24:01

DUBLIN, April 16, 2014 /PRNewswire/ -- Research and Markets ( http://www.researchandmarkets.com/research/csmfqx/smart_homes) has announced the addition of the "Smart Homes Market - by Products, Services and Geography - Analysis & Global Forecast to 2020" [http://www.researchandmarkets.com/research/csmfqx/smart_homes ] report to their offering. (Logo: http://photos.prnewswire.com/prnh/20130307/600769 ) Smart homes is a collective term for Information and...

2014-04-16 16:33:39

MegaChips Corporation announces the MegaChips new generation LDO, a new line of products jointly developed with Texas-based semiconductor company, Vidatronic, Inc. OSAKA, Japan, April 16, 2014 /PRNewswire/ -- MegaChips, one of the world's largest application-specific integrated circuit (ASIC) solution providers, introduces MegaChips' new generation LDO, a new line of low dropout (LDO) linear voltage regulators offering superior performance over traditional LDO products. MegaChips...

2014-04-16 12:35:08

DUBLIN, Apr. 16, 2014 /PRNewswire/ -- Research and Markets ( http://www.researchandmarkets.com/research/2vvgdh/global_smart_grid ) has announced the addition of the "Global Smart Grid Cyber Security Market Report" report to their offering. (Logo: http://photos.prnewswire.com/prnh/20130307/600769) The analysts forecast the Global Smart Grid Cyber Security market to grow at a CAGR of 29.43 percent over the period 2012-2016. One of the key factors contributing to this market growth is the...


Latest Electromagnetism Reference Libraries

Maglev
2014-04-11 09:17:26

Maglev is a vehicle propulsion system that uses magnetic levitation to move a vehicle with magnets instead of wheels. The vehicle hovers a short distance above the guide way by magnets and also uses the magnets for motion. The operation of this system is quite and maintains less friction for improved acceleration and deceleration. Weather does not affect the performance of the vehicle. Currently, some trains make use of the Maglev system, but vacuum tube trains could allow a Maglev system...

0_61ea0425e0bdd56719dc11be365e49db
2010-10-04 16:07:17

The Cathode Ray Tube, which has internal or external means to accelerate and deflect electron beams, is a vacuum tube containing an electron gun and a fluorescent screen. The electron beams that are deflected are used to create images in the form of light emitted from the fluorescent screen. The CRT works by using an evacuated glass envelope which is large, deep, heavy, and relatively fragile. Ferdinand Braun is credited with the first CRT in 1897. It can also be known as the Braun tube....

0_105e58414d18e8541bc82c450f1fc2eb
2010-09-29 14:57:36

A tape drive is a storage device that reads and writes data on a magnetic tape. It is mostly used for offline, archival data storage. Tape media is generally cost efficient and has a long archival strength. In contrast to a disk drive which provides random access storage, a tape drive provides sequential access storage. This takes the tape drive a substantial amount of time between winding tape between reels and reading individual data, which is much longer than a disk drive. Consequently,...

0_0bb0b4b1f267ec1fe7cea58cbe6734a2
2010-09-23 20:39:09

An electromagnet, a magnet whose magnetic field is produced by the flow of electric current, works until the electric current ceases. The magnetic field in a simple electromagnet is created by a wire passing through it with an electric current. The strength of the magnet depends on the amount of current. By making the wire into a coil the magnetic field is concentrated. A straight tube coil is a solenoid. A stronger magnetic field can be produced by putting a ferromagnetic material, such as...

45_0a648573510fd624b654781c72234be7
2009-07-21 16:45:53

A Radio Atmospheric signal (sometimes referred to as Sferic or Spheric), is a broadband electromagnetic impulse that occurs during atmospheric lightning discharges. Sferics spread out from the lightning source and can be received thousands of miles away. A sferic, depending on atmospheric conditions, may extend anywhere from a few kHz to several tens of kHz. Sferics from far reaching storms, over 1500 miles away, are generally offset in frequency range and may be picked up as tweeks. A...

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