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Hang up. (updates).(train passengers exposed to cell phone electromagnetic radiation)(Brief Article)
Passengers on packed trains and subways may be exposing themselves to electromagnetic fields far more intense than those recommended under international guidelines. The problem? Crowds of commuters using cellular phones at the same time.
When hundreds of mobile phones emit radiation, their total power is found to be comparable to that of a microwave oven or even a satellite broadcasting station, according to a recent study published in the February 2002 issue of the Journal of the Physical Society of Japan.
Physicist Tsuyoshi Hondou, formerly of Tohoku University in Sendai, Japan, and now working at the Curie Institute in Paris, says Japanese commuter trains are often packed with people surfing the Web on their cellular phones. The trend spurred him to find out what effect this had on the electromagnetic radiation inside a train.
Starting with blueprints obtained from a carriage manufacturer, Hondou worked out the ratio of window area to structural metal for a typical carriage.
He then used this number to work out what proportion of microwave radiation from cell phones would be transmitted ...
- Optimization Methods in Electromagnetic Radiation.(MEbookshelf)(Brief...
- Magazine article from: Mechanical Engineering-CIME December 1, 2006 700+ words
Optimization Methods in Electromagnetic Radiation. Thomas S. Angell and Andreas Kirsch. Springer-Verlag, 233 Spring St., New York, NY 10013. 2004. 331 pages. $99...
- A novel architecture for excluding protons. (new structure prevents absorption...
- Magazine article from: Science News Peterson, Ivars September 25, 1993 700+ words
...right geometry to act as a photonic crystal. In other words, it prevents the absorption or emission of electromagnetic radiation at certain wavelengths that fall within an excluded range or band gap. This discovery suggests a promsing...
- Everyone is affected by electromagnetic radiation.(Letters to the Editor)(Brief...
- Magazine article from: Townsend Letter for Doctors and Patients Firstenberg, Arthur August 1, 2005 700+ words
...she wrote: "About three percent of the population is immediately affected by electromagnetic radiation." So far as we know, electromagnetic radiation affects most people more or less immediately, and even a single cell phone call...
- A punch in the gut.(Physical/Electromagnetic Radiation)(Brief Article)
- Magazine article from: Science World Adams, Jacqueline December 8, 2003 700+ words
Have you ever been picked last in gym class? The disappointment might have felt like a swift punch to the gut. New studies show that the brain reacts to a social snub the same way it reacts to internal pain. Matthew Lieberman, a researcher at UCLA, used magnetic resonance imaging (MRI) to study the
- The effects of electromagnetic radiation on ant pheromones. (Senior...
- Magazine article from: Journal of the Colorado-Wyoming Academy of Science Wang, Ko-Chun April 1, 2002 700+ words
This investigation attempted to determine the relationship between exposure to ultraviolet tight and the degradation of a pheromone trail laid by black carpenter ants. This was done by allowing the ants to run along an 11-inch length of plastic tubing (which kept the ants from wandering) and
- PROTECTION FROM ELECTROMAGNETIC RADIATION
- Newspaper article from: Medical Textiles January 1, 1991 700+ words
...that will provide shielding from electromagnetic radiation can be made by blending conventional...microwaves and other forms of electromagnetic radiation. This is especially serious...made them more susceptible to electromagnetic radiation interference which is daily encountered...
- New Waveguard Product First to Absorb Potentially Harmful Electromagnetic...
- Press release article from: Business Wire June 22, 1998 700+ words
...and absorbs potentially harmful electromagnetic radiation waves while users send and receive...the potentially harmful stray electromagnetic radiation generated during the transmission...absorbs a majority of the stray electromagnetic radiation. Developed in South Korea...
- Public exposure to electromagnetic radiation in Akrotiri 76 times lower than...
- Press release article from: M2 Presswire August 29, 2001 700+ words
...Public exposure to electromagnetic radiation in Akrotiri 76...limitPublic exposure to electromagnetic radiation in Akrotiri 76...the levels of electromagnetic radiation of the British...
