U.S. scientists find the switch that turns on the northern lights Jul 27, 2008
To answer the question, the Themis mission launched five identical satellites, each about the size of a washing machine, to measure the electric and magnetic fields as well as the particles passing by at different locations around Earth. Coupled with ground observations, scientists were able to deduce the order of events in a substorm in February. (International Herald Tribune -- Health)
Engineer has new take on physics Jul 13, 2008
"Einstein worked for 17 years trying to interrelate gravitational, electric and magnetic fields," he said, but the physicist never succeeded. DuVall said he thought he saw a way to link them mathematically, and has made some presentations, including talks at the University of Arkansas, his alma mater. (AL.com)
The Dangers of Electromagnetic Radi... Jul 3, 2008
It is well known that alternating electric and magnetic fields outside the body are capable of inducing electric fields within the body. Radiant energy is absorbed according to , which depend on the frequency of the radiation. (Suite101.com)
* Activists protest as Ma visits WiMAX Expo Jun 4, 2008
Chen, a professor at the Chia Nan University of Pharmacy and Science, said the government should think twice about boosting WiMAX technology because electric and magnetic fields from power lines, wiring and appliances are harmful to human health. She cited an international study that found exposure to electromagnetic radiation may cause cancer and was likely responsible for an increase in childhood leukemia, although more research was necessary to establish the link. (Taipei Times, Taiwan -- World)
New telescope may uncover space mysteries Jun 4, 2008
"Gamma rays are emitted in the most extreme environments in the universe, where the gravitational and electric and magnetic fields are so much higher than anything you could ever study directly on Earth.For example, GLAST could help find , the as yet unseen substance that could make up 90 percent of all matter in the universe, whose presence scientists infer by its effects on the motion of galaxies. In theory, dark matter particles are their own antiparticles, meaning they destroy each other... (MSNBC -- Technology)
New Material A 'Perfect' Absorber Of Light Jun 2, 2008
The group used computer simulations based on prior research findings in the field to design resonators able to couple individually to electric and magnetic fields to successfully absorb all incident radiation, according to their findings. Because its elements can separately absorb the electric and magnetic components of an electromagnetic wave, the "perfect metamaterial absorber" created by the researchers can be highly absorptive over a narrow frequency range. (Science Daily)
New metamaterial proves to be a 'perfect' absorber of light May 30, 2008
Resonators couple individually to electric and magnetic fields to absorb all incident radiation ... The group used computer simulations based on prior research findings in the field to design resonators able to couple individually to electric and magnetic fields to successfully absorb all incident radiation, according to their findings. (EurekAlert!)
MIT researchers image fusion reaction Mar 1, 2008
Now that the MIT scientists have invented a way to observe the electric and magnetic fields around the pellets, they will fine tune the technique by observing spherical shape and controlling the process with enough precision to induce nuclear ignition. Funded for the fusion research was provided by the Fusion Science Center for Extreme States of Matter and Fast Ignition at the University of Rochester and the U.S. Energy Department's Office of Inertial Confinement. (EETimes)
What Are Electromagnetic Waves? Nov 21, 2007
To understand electromagnetic waves, one must first understand electric and magnetic fields and how they interact ... How Electric and Magnetic Fields Interact ... In this way the electric and magnetic fields oscillate and propagate through space. (Suite101.com)
The Electromagnetic Spectrum Nov 21, 2007
Electromagnetic waves are oscillations in electric and magnetic fields ... In electromagnetic waves the electric and magnetic fields are perpendicular to each other and to the direction the wave is traveling ... Both the electric and magnetic fields are oscillating between maximum positive and maximum negative values. (Suite101.com)
How Do Microwave Ovens Work? Nov 12, 2007
Electromagnetic waves are wavelike oscillations of electric and magnetic fields ... Giga means billion, so the electric and magnetic fields oscillate fast enough to make 2. (Suite101.com)
Microwave Ovens Heat Food Unevenly Nov 12, 2007
Electromagnetic waves are wavelike oscillations of electric and magnetic fields ... Giga means billion, so the electric and magnetic fields oscillate fast enough to make 2 ... For electromagnetic waves, the peaks of the waves occur when the electric and magnetic fields are maximally positive. (Suite101.com)
Exposure to the invisible cloud of energy called electrosmog is rising Sep 24, 2007
Power lines, electric generators and motors, electric appliances, electronic devices and wireless communication systems all generate electric and magnetic fields, which together constitute EMF - fields of energy created by any electrical system. Taking the underground train system to work. (International Herald Tribune -- Business)
Study Links Radio Towers to Child Leukemia Risk Jul 31, 2007
The researchers took measurements of the electric and magnetic fields surrounding AM transmission towers in various areas of South Korea, and used a mathematical model to estimate nearby residents' exposure to radiation from the towers. The study included 1,928 children with leukemia, 956 with brain cancer and 3,082 healthy children. (MEDLINEplus)
Electro-nirvana? Not so fast Jun 9, 2007
"First, when were talking about health effects, it boils down to how much of the energy is absorbed in our tissue and is it enough to cause damage (by heating or another mechanism). So, most times when were talking about radiofrequency radiation (electric and magnetic fields), we talk in terms of a Specific Absorption or Specific Absorption Rate (SA or SAR). Its a bit like ionizing radiation when we say you can be exposed to X rays, but how much was absorbed? It is the amount that is... (MSNBC)
Jamison airs grievances over power lines on land Jun 2, 2007
An environmental assessment performed by TVA before the lines were built contains a section on electric and magnetic fields stating route planners would look for routes which kept 161-kV lines at least 300 feet from occupied buildings. The lines in Jamison's yard run as close as 17 feet from his house, he says. (Columbus Commercial Dispatch, MS)
Magnetic fields tied to railway workers' cancer May 30, 2007
Electric and magnetic fields (EMFs) are areas of energy surrounding electrical devices, including appliances, computers, electrical wiring and power lines. They also occur naturally in the environment. (Scientific American)
Electromagnetic fields linked to cancers in railway workers May 25, 2007
Electric and magnetic fields are areas of energy that surround any electrical device, and are produced by power lines, electrical wiring and appliances. While electric fields are easily shielded or weakened by walls and other objects, magnetic fields can actually penetrate the body, and thus have been studied in relation to cancer. (Insider Medicine)
Jamison sues to block TVA power to SeverCorr May 4, 2007
The document also outlines the post-construction impacts of electric and magnetic fields and its views on route selection. Jamison is seeking compensatory and consequential damages for what he claims are TVA's negligent actions and breach of contract. (Columbus Commercial Dispatch, MS)
Atomic ticker clocks up 50 years Mar 24, 2007
Atomic clocks are still much more constant than any other current method of time-keeping, although they are sensitive in a very small way to changes in electric and magnetic fields. The development of the atomic clock was partly helped by technological advances such as radar during World War II.. (BBC News -- Science)
Casimir Effect Heats Up Feb 25, 2007
According to quantum mechanics, the vacuum contains fleeting electromagnetic waves, in turn consisting of electric and magnetic fields. The electric fields can slightly rearrange the charge in atoms. (Science Daily)
Magnetic fields child cancer concern Dec 7, 2006
The federal government has devised a draft standard on exposure to electric and magnetic fields amid concerns they can cause childhood cancer. The standard, released by the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA), specifies that limits for public and occupation exposure at extremely low frequencies (ELF) are between 0Hz to 3kHz. (Sydney Morning Herald -- Australia)
Asymmetric Ashes: Astronomers Study Shape Of Stellar Candles Dec 5, 2006
"Using observations of 17 supernovae made over more than 10 years with ESO's Very Large Telescope and the McDonald Observatory's Otto Struve Telescope, astronomers inferred the shape and structure of the debris cloud thrown out from Type Ia supernovae. Such supernovae are thought to be the result of the explosion of a small and dense star - a white dwarf - inside a binary system. As its companion continuously spills matter onto the white dwarf, the white dwarf reaches a critical mass, leading to... (Science Daily)
Inconclusive evidence suggests practical avoidance: Canadian Cancer Society statement to Environmental Assessment Office on Tsawwassen power line project Sep 12, 2006
VANCOUVER, Sept. 12 /CNW/ - The Canadian Cancer Society, B.C. and Yukon Division, has submitted a letter to the Environmental Assessment Office (EAO) and the B.C. Utilities Commission (BCUC) to clarify its position on electric and magnetic fields (EMF) and its possible link to cancer. The BCUC accepted public input until September 8 on the Vancouver Island Transmission Reinforcement Project running through the community of Tsawwassen to Vancouver Island; the EAO is accepting comments until... (Canada Newswire)
University of Iowa helps with NASA project Aug 4, 2006
Iowa team members will conduct a wave experiment to measure electric and magnetic fields and construct a magnetometer. The study is aimed at better understanding plasma waves that energize space particles to radiation levels. (Muscatine Journal, IO)
G-Zero update Jun 30, 2006
In particular, Beck says the collaboration found that strange quarks contribute to the proton's electric and magnetic fields -- in other words, its charge distribution and magnetization. "All quarks carry charge, and one of the things we measure is where the strange quarks are located in the proton's overall charge distribution," Beck explains, "And then there's a related effect. There are these charged quarks inside the protons, and they're moving around. And when charged objects move around,... (EurekAlert!)
Leukaemia risk: 80% afraid of living near power lines Jun 21, 2006
The study, presented yesterday to a cross-party group of MSPs, found 81% were concerned about possible links between childhood leukaemia and exposure to electric and magnetic fields (EMF) caused by high-voltage power lines. Around 67% said they would like planning controls introduced to stop homes being built near power lines, while 37% were in favour of burying existing power lines to reduce the fields emitted. (The Herald)
Lab To Build NASA's Radiation Belt Storm Probes May 28, 2006
After launch, scheduled for 2012, the RBSP spacecraft will measure the distributions of charged particles as well as the electric and magnetic fields that energize, transport or remove the particles within these belts. Detailed design of the probes will begin this summer, after NASA selects the spacecraft's science instruments. (Science Daily)
Local officials seek more info on proposed power line ... F-S's After-Prom Party offers safe alternative to risky behavior ... F-S board turns down request for separate West Schuyler voting site ... County votes to support protection of farm land ... County votes to support protection of farm land ... ';var marqueewidth="350px";var marqueeheight="20px";var marqueebgcolor="#FFFFFF";////NO NEED TO EDIT BELOW THIS LINE////////////var pauseit=1;var marqueespeed=1 //slow speed down by 1 for NSvar copyspeed=marqueespeedvar pausespeed=(pauseit==0)? copyspeed: 0var iedom=document.all||document.getElementByIdif (iedom)document.write(''+marqueecontent+'')var actualwidth=''var cross_marquee, ns_marqueefunction populate(){if (iedom){cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarqueecross_marquee.style.left=parseInt(marqueewidth)+8+"px"cross_marquee.innerHTML=marqueecontentactualwidth=document.all? temp.offsetWidth : document.getElementById("temp").offsetWidth}else if (document.layers){ns_marquee=document.ns_marquee.document.ns_marquee2ns_marquee.left=parseInt(marqueewidth)+8ns_marquee.document.write(marqueecontent)ns_marquee.document.close()actualwidth=ns_marquee.document.width}lefttime=setInterval("scrollmarquee()",20)}window.onload=populate;function scrollmarquee(){if (iedom){if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed+"px"elsecross_marquee.style.left=parseInt(marqueewidth)+8+"px"}else if (document.layers){if (ns_marquee.left>(actualwidth*(-1)+8))ns_marquee.left-=copyspeedelsens_marquee.left=parseInt(marqueewidth)+8}}if (iedom||document.layers){with (document){document.write('')if (iedom){write('')write('')write('')write('')}else if (document.layers){write('')write('')write('')}document.write('')}}Thursday, May 25, 2006 Local officials seek more info on proposed power line May 25, 2006
esearch has been done on power-frequency electric and magnetic fields, looking at pylons, substations, occupational exposure, and even electrical appliances within the home. Exposure to low-level electromagnetic fields promotes cancer, especially childhood leukemia, also adult leukemia and adult brain cancer, miscarriage, depression, Alzheimer's Disease, cot death, ME, electrical sensitivity, and other less serious effects, remarked Howard. (Herkimer Eening Telegram, NY)
ATR and Honda Successfully Develop New Brain-Machine Interface Creating Technology for Manipulating Robots Using Human Brain Activity May 24, 2006
This technology is potentially applicable to other types of non-invasive brain measurements such as the brain's electric and magnetic fields and brain waves. By utilizing such methods, it is expected that the same result could be achieved with less time lag and more compact BMI system devices. (JCN Network, Japan)
How do neon lights work? Apr 17, 2006
The sculpture at the bottom of the sign represents the electric and magnetic fields of light. The white and yellow sine waves in the sculpture are actually fluorescent lights. (Scientific American)
University takes pass on wireless Internet Feb 25, 2006
school until hes certain no health risk exists from electric and magnetic fields (EMFs). In a recent interview with the website itbusiness. (Ottawa Citizen)
Why radio waves shine through paper but not light Feb 14, 2006
A: True, electric and magnetic fields pass through paper. We can see this is so with a simple experiment. (USA Today -- Science)
Solar Mayhem Jan 20, 2006
Thus, they generate all sorts of electric and magnetic fields. The motion of the particles creates the magnetic fields and, in turn, these fields influence the motion of the particles. (Softpedia)
