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Latest Electrical phenomena Stories

0d2b27057dd9341f6dc5870023c5b24b1
2009-06-02 12:54:31

Experts say passenger jets are hit by lightning every 1,000 hours (on average twice a year) and the risk from the bolts of electricity continues to be an increasing problem, AFP reported. However, after the disappearance of an Air France jet in the Atlantic with the feared loss of 228 lives, technical experts say lightning alone could not have caused it to crash into the ocean. The A300-200 jet was likely hit by lightning as it passed through a violent storm on the flight from Rio de Janeiro...

5986b0160c6ff376e6859e043c75e5d71
2009-06-01 14:02:34

Trying to find how thunderstorms create lightning Florida Institute of Technology researchers are trying to solve one of the great mysteries in nature: how thunderstorms make lightning. Because, in principle, lightning is a big spark it should behave like other sparks"”like the ones created when we touch a door knob on a dry day. Scientists have accumulated evidence, however, that lightning sometimes behaves in very un-spark-like ways. Lightning can start in regions of thunderstorms...

2009-05-14 11:11:03

U.S. researchers say they have developed a technique using a silicon crystal as a type of nanoscale vice to squeeze another crystal into a more useful shape. The scientists led by Professor Darrell Schlom of Cornell University and Joseph Woicik of the National Institute of Standards and Technology said their accomplishment might lead to development of a new class of electronic devices that remember their last state even after power is turned off. Computers that could switch on instantly...

2862fd47636fd0af7a8b342cbeeb9d0b1
2009-05-09 08:18:14

A clever materials science technique that uses a silicon crystal as a sort of nanoscale vise to squeeze another crystal into a more useful shape may launch a new class of electronic devices that remember their last state even after power is turned off. Computers that could switch on instantly without the time-consuming process of "booting" an operating system is just one of the possibilities, according to a new paper by a team of researchers spanning four universities, two federal...

2009-05-08 12:30:00

GREENBELT, Md., May 8 /PRNewswire-USNewswire/ -- Scientists using NASA's fleet of THEMIS spacecraft have discovered how radio waves produced by electrons injected into Earth's near-space environment both generate and remove high-speed "killer" electrons. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Killer electrons are born within Earth's natural radiation belts, called the Van Allen belts after their discoverer, James Van Allen. Killer electrons are mostly found in the...

30cb94c2b45a55514980584f0a7844db1
2009-04-28 08:43:34

Earth-bound tornadoes are puny compared to "space tornadoes," which span a volume as large as Earth and produce electrical currents exceeding 100,000 amperes, according to new observations by a suite of five NASA space probes. The probe cluster, called Time History of Events and Macroscale Interactions during Substorms (THEMIS), recorded the extent and power of these electrical funnels as the probes passed through them during their orbit of Earth. Ground measurements showed that the space...

d77bbbcb6b9cc1ec15f92c641893cc1e1
2009-04-18 15:55:00

Ferroelectric materials, like those found in ATM and fuel cards, may soon provide "instant-on" capability to computers, eliminating time-consuming reboots.According to a report in the journal Science, a group of researchers supported by the National Science Foundation recently added ferroelectric capabilities to common computer transistors.  It's a feat scientists have been trying to achieve for more than half a century.These ferroelectric materials allow high-efficiency memory at...

2009-04-17 11:15:00

The technology of storing electronic information "“ from old cassette tapes to shiny laptop computers "“ has been a major force in the electronics industry for decades.Low-power, high-efficiency electronic memory could be the long-term result of collaborative research led by Cornell materials scientist Darrell Schlom. The research, to be published April 17 in the journal Science (Vol. 324 No. 5925), involves taking a well-known oxide, strontium titanate, and depositing it on...

6721e81aa758d565f36e158997294d0f1
2009-04-09 14:50:00

Lightning may provide scientists with crucial insight into predicting the intensity of Earth's deadliest storms. Each year, hurricanes pose threats of devastation around the world, and while forecasters have become better equipped to predict their pathways, they often find it difficult to gauge the storms' intensity in advance. Colin Price of Tel Aviv University in Israel and colleagues analyzed the correlation of growth of maximum winds and lightning frequency every 6 hours. Their study...

437270eebb22d3dd6b7dbae23fab67d31
2009-02-23 11:25:53

In legend, sprites are trolls, elves and other spirits that dance high above our ozone layer. But scientists at Tel Aviv University have discovered that some very real "sprites" are zipping across the atmosphere as well, providing a possible explanation for those other legendary denizens of the skies, UFOs. Thunderstorms, says Prof. Colin Price, head of the Geophysics and Planetary Sciences Department at Tel Aviv University, are the catalyst for a newly discovered natural phenomenon he calls...


Latest Electrical phenomena Reference Libraries

Weather Reference Library
2012-05-10 10:05:27

When we think of thunderstorms we have to remember the deadliest part of those storms and that is the lightning that occurs with them. Lightning is found in many forms. The first type of lightning is known as cloud to cloud meaning that the electric charge travels from one cloud to the other. The second type of lightning is the Cloud to Air meaning the lighting moves from the cloud and enters the clear air of the sky. A third type of lightning is the cloud to ground. This is the most...

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...

45_ea2454244dfc08fbf5cc825f9559f1da
2009-07-21 16:27:18

Heat Lightning is actually faint flashes of lightning reflecting outward from distant thunderstorms. These flashes usually do not produce thunder as the storm is sometimes too far away to be heard. The term heat lightning got its name because it often occurs on hot summer nights and does not produce audible thunder. One reason heat lightning can be seen so far away is due to the reflection of the light bouncing off water particles in moist, humid air and as light is scattered throughout the...

6_7a298dad9db3084ba8f1dbe9ba6be2442
2004-10-19 04:45:41

Aurora -- The Polar Aurora are natural displays of light in the sky that can be seen with the unaided eye only at night. An auroral display in the Northern Hemisphere is called the aurora borealis, or the northern lights; in the Southern Hemisphere it is called the aurora australis. Auroras are the most visible effect of the sun's activity on the earth's atmosphere. The beautiful and often eerie curtains of light in the night time sky have been observed by people for millennia. An aurora...

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