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What is Non-Ionizing Radiation? April 6, 2007

Posted by healthyself in 0 Hz-3kHz, 000 Hz, 1 GHz- 300 GHz, 1 mm, 100 nm - 400 nm, 3 kHz-300 GHz, 300 GHz, 400 nm - 700 nm, 700 nm, Amplified Signals, Amplitude, Analog, Antennas, Atmospheric Pressure, Blogroll, Bytes, Cable, Cell Masts, Cell Phones, Coherence, Computer Rooms, Cordless Phones, DECT, Distribution, Earth, EEG, EHF, Electrical Components, Electrical Pulses, Electrical Surges, Electrical Wiring, electromagnetic, Electromagnetic Communications, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic Radiation, Electromagnetic Spectrum, Electromagnetic waves, Electrosensitivity, Electrosmog, ELF, EMF Research, EMF's, EMR, Entropy, Environment, Exposure, Fiber Optic, Frequencies, Hand Portables, Handheld Units, HF, High Frequencies, high voltage transmission lines, Internet, ionizing radiation, Landline, Laptops, LF, Lifestyle, Light, light beam, Long Term Health Risks, Low Frequencies, Magnetic, MCS, MF, MHz, Microwave exposure, Mobile Music, mobile telephones, Non-Thermal Levels, Penetration, Photons, Photosensitive, Pulsed Radiation, Pulses, Pure Tone, QV, Radar, Radians, radiation, Radio Frequency Radiation, Radio Waves, radioprotector, Radios, Research Needed, Resonance, Resonant Frequency, ringing, ringtones, Risk of Disease, Safe Levels, Safety, SAR, Schuman Resonance, SHF, Speakerphones, Spectrum, Telecommunications, Telephony, Transducer, Transfer, transmission, UHF, Ultraviolet, VDT, Visible Light, VLF, W/Kg, W/m2, watts, Wave Front, Waves, Who is Affected?, WiFi, Wired, Wired Phone, Wireless, Wireless Phones, X-Rays.
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Definitions

The properties and effects of non-ionising radiations are very diverse. For the purpose of this Policy non-ionising radiations include:

Extremely low frequency (ELF) radiation

Electromagnetic radiation with frequencies in the range 0 Hz (static fields) to 3 kHz, including the 50 Hz electric and magnetic fields associated with the domestic mains electricity supply such as in domestic electrical appliances, electricity supply substations and overhead power lines.

Radiofrequency (RF) radiation

Electromagnetic radiation with frequencies in the range 3 kHz to 300 GHz, which is produced by artificial sources such as visual display units and mobile phones.

Microwave (MW) radiation

Electromagnetic radiation with frequencies in the range 1 GHz to 300 GHz, which is produced by artificial sources such as in microwave ovens and by microwave communication devices. (This radiation is now considered part of Radiofrequency radiation.)

Infrared (IR) radiation

Electromagnetic radiation with wavelengths between 700 nm and 1 mm, which is present in sunlight and produced by artificial sources such as electric radiator heaters.

Visible light

Electromagnetic radiation with wavelengths between 400 nm (blue) and 700 nm (red), which is present in sunlight and produced by numerous artificial sources, including lasers.

Ultraviolet (UV) radiation

Electromagnetic radiation with wavelengths between 100 nm and 400 nm, which is present in sunlight as well as produced by artificial sources such as arc welding and sterilization lamps.

http://www.unisa.edu.au/policies/policies/hr/HR30.asp

High Frequency Electromagnetic Fields April 5, 2007

Posted by healthyself in Amplified Signals, Amplitude, Antennas, Blogroll, Cable, Cell Masts, Cell phone industry, Cell phone safety, Cell Phones, Computer Rooms, Cordless Phones, Definitions, Digital, Distribution, Electrical Components, Electrical Pulses, Electrical Wiring, Electromagnetic Communications, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic Radiation, Electromagnetic Spectrum, Electromagnetic waves, Electrosensitivity, Electrosmog, ELF, Emergency Medicine, EMF Research, EMF's, EMR, Energy, Environment, Epidemiology, Exposure, Frequencies, GHz, Government's role, HF, High Frequencies, high voltage transmission lines, Homes, HOuseholds, HRD, Human Resources, Hz, Infrared, Interdisciplinary, Landline, Laptops, Legal Issues, Lifestyle, Low Frequencies, MCS, MF, MHz, Microwave exposure, Mitigation, mobile telephones, Oscillate, Pulsed Radiation, Pulses, Radar, radiation, Radio Frequency Radiation, Radio Waves, Radios, Research Needed, Resonant Frequency, Risk of Disease, Sound, Speakerphones, Telecommunications, Telephony, Transducer, Transfer, transmission, UHF, VDT, VLF, W/Kg, W/m2, watts, Wave Front, Waves, Who is Affected?, WiFi, Wired, Wired Phone, Wireless, Wireless Phones, Workplace, X-Rays.
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“Mobile telephones, television and radio transmitters and radar produce RF fields. These fields are used to transmit information over long distances and form the basis of telecommunications as well as radio and television broadcasting all over the world. Microwaves are RF fields at high frequencies in the GHz range. In microwaves ovens, we use them to quickly heat food.””At radio frequencies, electric and magnetic fields are closely interrelated and we typically measure their levels as power densities in watts per square metre (W/m2).”

“Key points:

  • The electromagnetic spectrum encompasses both natural and human-made sources of electromagnetic fields.
  • Frequency and wavelength characterise an electromagnetic field. In an electromagnetic wave, these two characteristics are directly related to each other: the higher the frequency the shorter the wavelength.
  • Ionizing radiation such as X-ray and gamma-rays consists of photons which carry sufficient energy to break molecular bonds. Photons of electromagnetic waves at power and radio frequencies have much lower energy that do not have this ability.
  • Electric fields exist whenever charge is present and are measured in volts per metre (V/m). Magnetic fields arise from current flow. Their flux densities are measured in microtesla (µT) or millitesla (mT).
  • At radio and microwave frequencies, electric and magnetic fields are considered together as the two components of an electromagnetic wave. Power density, measured in watts per square metre (W/m2), describes the intensity of these fields.
  • Low frequency and high frequency electromagnetic waves affect the human body in different ways.
  • Electrical power supplies and appliances are the most common sources of low frequency electric and magnetic fields in our living environment. Everyday sources of radiofrequency electromagnetic fields are telecommunications, broadcasting antennas and microwave ovens.”

http://www.who.int/peh-emf/about/WhatisEMF/en/

Grave cell phone danger—pay attention to this! December 2, 2006

Posted by healthyself in 217 Hz, ADD, Addiction, ADHD, Adolescents, Aging, Allergies, ALS, Alzheimer's, angst, Antennas, Anxiety, arteriosclerosis, Attention, Attention Deficit, Autism / Asperger's, Bioeffects, Biological Activity, Biological Effects, Bioscalar Energy, Birth Defects, Blogroll, Blood Brain Barrier, Blood Pressure, Brain, Brain Cancer, Brainwave Interference, Breast Cancer, Cancer, Cardiac Problems, Cell changes, Cell death, cell membrane, Cell phone safety, Cell phone towers, Cell Phones, Cells, Cellular Morphology, Central Nervous System, Childhood Leukemia, Children, Children's health, Chromosomal damage, Chronic Exhaustion, Chronic Fatigue, Chronic Illness, Circadian rhythms, Circulation, Coherence, Communication, Community, Concentration, Connective Tissue Pains, Conversations, Cordless Phones, Cytotoxic Effects, Death, Dementia, Depression, Diagnostic marker, Digital, Dizziness, DNA, Dopamine, Ear, ear ache, earphones, EEG, Elderly, Electrical Components, Electrical Pulses, Electrical Surges, Electrical Wiring, Electrochemical, electromagnetic, Electromagnetic Communications, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic Radiation, Electromagnetic waves, Electrosensitivity, Electrosmog, ELF, Emergency Medicine, EMF Research, EMF's, Employees, EMR, Endogenous Fields, Energy, Environment, Epidemiologists, Epidemiology, Epilepsy, Exposure, Eye Cancer, Eyes, Family, Fatigue, Fiber Optic, Flickering, Free Radicals, Frequencies, Games and Gaming, genes, genetic damage, grams of tissue, Hand Portables, Handheld Units, Harmonics, headaches, Healing, Health, Health related, Hearing, Heart, Heart Disease, heat, Heavy Metals, HF, High Frequencies, high voltage transmission lines, Hormones, HOuseholds, HRD, Human Resources, Humor, Imbalances, Immune system, Inflammation, Infrared, Inner Agitation, Insomnia, Integrative Medicine, Interdisciplinary, Internet, Intuition, Kids, Lack of Concentration, Learning, Legal Issues, LF, Lifestyle, Long Term Health Risks, Lymphoma, MCS, Medical Research, Medicine, Memory, Memory Loss, Men', Men's Health, Metabolic Changes, Metal Roofs, Microwave exposure, Migraines, Military, miscarriages, Mitigation, mobile telephones, Monitoring, Movement, nausea, nerves, Neural Electrophysiology, Neurasthenia, neurological, neuroma, neurons, neurosurgeons, Neurotransmitters, Noise, Non Profit Organizations, Non-Thermal Levels, Nutrition, oncogenes, Optical, Overtones, Pain, Pain Perception, Panic Attacks, Paralysis, Parenting, Penetration, People in Laboratories, Pets, Pineal Gland, Pregnant Women, pressure, Proteins, Public Policy, Pulsed Radiation, Pulses, radiation, Radio Frequency Radiation, Reaction Time, Research, Research Needed, ringing, ringtones, Risk Factor, Risk of Disease, Safe Levels, Safety, SAR, School administrators, School Boards, Schools, Seizure, sensations, Sick People, signaling enzymes, Sleep, Sleep disturbances, Stress, Symptoms, Teenagers, Telecommunications, Telephony, Tinnitus, Toxic Interactions, Traffic Pollution, Tumors, Tweenies, Unified Field, VDT, Vibrational Medicine, Who is Affected?, WiFi, Wireless Phones, Withdrawal, Women, Women's Health, Workplace, X-Rays, zinging/crackling.
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By: Will Thomas

Though intended for renovations, Chris Anderson would like all visitors to deposit their cellular phones in the cement mixer by his front door. This sounds excessive – until you step into Anderson’s orchard, where the pegged needle of a shrieking electromagnetic radiation (EMR) meter placed beside a connected cellphone still shows significant exposure 100 feet away.

Much to the chagrin of this certified EMR-mitigation specialist, every day some 300 million cell phone users are “reaching out and touching someone you love. Yourself, and anyone else within range of the microwaves emitted by your cell phone.”……Silicon sensors are already calling to each other. Soon, countless communicating microchips embedded in everything from bumpers to brooms will be sending streams of encoded electrical energy through glass, steel, concrete, bone and flesh. Exquisitely sensitive to subtle electromagnetic harmonies, human brains and bodies as intricate as galaxies depend on tiny electrical impulses to conduct complex life-processes – including the ability to read, recall and respond to these words. Acting as antennas, our anatomies just as easily tune into spurious signals from radio and microwave transmissions. .

….”a worse frequency could not have been chosen for the human anatomy.”

As cell phones conquer consumer minds and markets, researcher Carolanne Patton notes that “the brain reaches peak absorption in the UHF bands, right where cellular telecommunications operate.” British military scientists have discovered that cellphone transmissions disrupt the brain sites for memory and learning, causing forgetfulness and sudden confusion.

Other studies show that electromagnetic signals from cellular phones reduce the ability to concentrate, calculate and coordinate complicated activities such as driving a car. Startled by $4 billion a year in extra claims among cellphone-wielding drivers, North American insurers did a double-take that found simply juggling `cell phones is not causing a 600% increase in accidents over other drivers busy shaving, applying makeup, tuning radios, taming pets, making out, pouring coffee, retrieving dropped cigarettes, talking and gesturing to passengers, or actually steering the vehicle….Instead of just another dangerous distraction, tests conducted by the U.S.Department of Energy found that using a cell phone severely impairs memory and reaction times. “Hands-free” mobile speaker-phones cause even more crashes because they typically emit 10-times more brainwave interference than handheld units.

For all drivers dialing out on their cell phones, University of Toronto investigators report that the heightened probability of cracking up your car persists for up to 15-minutes after completing a call. That’s comparable to the risk of crashing while driving dead drunk exclaims Dr. Chris Runball, chairman of the B.C. Medical Association’s emergency medical services committee. Reeling from “dial-a-collision” costs, the government of British Columbia may join England, Spain, Israel, Switzerland and Brazil in restricting or banning the use of cell phones by drivers.

In New Zealand, cellphone towers are prohibited on school property because of possible health effects.
But Health Canada regulations ignore the hidden hazards of cell-wrenching cellphones, which send pulsed signals through the skull in a process one expert likens to “jackhammers on the brain.”

…. cellphone addiction mirrors the prestigious early allure of smoking – as well as an immensely profitable industry’s steadfast denial of risk and responsibility. …Sir William Stewart told London’s Financial Times that “children may be more vulnerable because of their developing nervous system, the greater absorption of energy in the tissues of the head and a longer lifetime of exposure.”

…a Ph.D. biophysicist warns that headaches, fatigue, lethargy, nausea, dizziness, depression, arteriosclerosis and even Alzheimer’s can result from frequent or prolonged calls on cell phones.

“There is also a higher incidence of cardiac problems,” Cherry comments, “in terms of the timing function in hearts. You get more heart attacks and more heart disease – it has now been shown in many studies.”

…..cell phones can murderously modify moods. In brains and bodies seriously derailed by tiny imbalances in trace minerals and hormones, depression, suicide, anger, rage and violence can result when calcium and serotonin levels are disrupted by cellphone transmissions….
.
….DNA damage is passed on to succeeding generations.

….we forget how inconvenient it is to contract cancer. …B-cell lymphomas doubled in mice within 18 months of one-hour daily exposure to power densities experienced by a cellphone user. B-cell lymphomas are implicated in 85% of all cancers.

…Sleep disorders, she learned, are common among people exposed to high levels of electromagnetic pollution.

…there is nothing “safe” about the new 1.9 gigahertz broadcasting frequency. Much like a boxer taking repeated blows to the head, rapidly pulsing cellphones signal permanent brain damage. A study by Dr. Peter Franch found unequivocally that “cells are permanently damaged by cellular phone frequencies.” This cellular damage, Franch noted, is maximized at low dosage – and “inherited unchanged, from generation to generation.”

….the production of histamine, which triggers bronchial spasms, is nearly doubled after exposure to mobile phone transmissions. Cellphones also reduce the effectiveness of anti-asthmatic drugs, and retard recovery from illness.

…. 217 Hz spikes are very close to the frequencies of human cell membranes.

…..because cancer takes decades to develop, it will be another 10 or 20 years before “mobiles” manifest a big bonanza in brain tumors. But he adds, we’re already seeing “acute effects that are noticed within minutes of using a cell phone.”

After two minutes’ conversation, a cell phone’s digitized impulses disable the safety barrier that isolates the brain from destructive proteins and poisons in the blood.

…If you must pack a cell phone, treat it like a loaded pistol. Keep it turned off. Don’t carry it near ovaries, testicles, or the heart. For partial protection, buy an antenna shield. Limit calls to one-minute, six to 10 minutes a month. Never fire off a cellphone with children anywhere in sight.

A better bet is to facilitate the growth of organic telephone networks with lots of fibre. Instead of more microwave towers, “We should be wiring up our cities with fibre-optic cables to provide Internet, fax, telephone, radio and television at very high quality,” Cherry urges, “rather than saturating our cities with the microwave, radiowave and low frequency signals all the time.”

When it comes to cells, consciousness and cell phones, every call is collect. How can convenience count more than cancer? What is gained by being in constant contact with disembodied voices, while being “out of touch” with the friends and neighbours around us? Are we comfortable having our location traced by monitoring authorities?

Unless we start voting with our wallets, consumer complacency could prove as species-limiting as corporate cynicism.

“Microwave frequencies are the same as those used in radar and your microwave oven,” … “You wouldn’t think of sticking your head in the oven, but there is no hesitation to putting the cell phone to your ear.”

It’s worth reading this whole article…. put this in your url NOW:

http://www.newmediaexplorer.org/chris/2005/02/15/grave_cell_phone_dangers_revealed.htm

Computer Factory Staff are at Greater Risk of Cancer November 7, 2006

Posted by healthyself in Biochemical, Bioeffects, Biological Activity, Biological Effects, Blogroll, Cancer, Computer Rooms, Decision Making, Electrical Components, Electrical Pulses, Electrical Surges, Electrical Wiring, electromagnetic, Electromagnetic Communications, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic Radiation, Electromagnetic waves, Electrosensitivity, Electrosmog, EMF Research, EMF's, Employees, EMR, Environment, Epidemiologists, Epidemiology, Exposure, Financial Considerations, Frequencies, Funding, Government's role, Grants, Health, Health related, HRD, Interdisciplinary, Internet, Lifestyle, Long Term Health Risks, Low Frequencies, Medical Research, Men', Men's Health, Microwave exposure, Movement, People in Laboratories, Public Policy, Pulsed Radiation, Pulses, Radio Waves, Research, Research Needed, Risk Factor, Risk of Disease, School administrators, Sick People, Stress, Symptoms, Telecommunications, Telephony, University, Who is Affected?, Women, Women's Health, Workplace.
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by MARTYN McLAUGHLIN       October 19 2006  
“Staff at computer factories could be at increased risk of contracting cancer because of working environments containing high levels of chemicals, metals and electromagnetic fields, according to a new study.”
“In what is the largest study of its kind, the findings focus on upwards of 30,000 deaths of members of staff at factories in the US since 1969.”


“It comes as government health inspectors have begun conducting a long-delayed follow-up inquiry into an Inverclyde factory at the centre of numerous cancer scares.”


“Scots scientists have criticised the “limited” second investigation into the National Semiconductor plant in Greenock, and say the new study helps “firm-up the picture” surrounding health risks.”

“The study by the Boston University School of Public Health in the US, published in the science journal Environmental Health, analysed the causes of death for 31,941 IBM workers and compared them with causes of death among the American population during this period. The information was obtained from IBM as part of a California lawsuit against the firm. The results of the study indicate there was increased mortality due to several types of cancer, especially in manufacturing workers and workers at particular plants in California, Minnesota, New York, and Vermont. Most notably, there was an excess of deaths due to cancer of the brain and central nervous system.”

“Richard Clapp, from Boston University School of Public Health, said: “It was not possible to link these deaths to specific chemicals or other exposures in the workplace because the information necessary to do this was not available.”

“The research appears to back up previous, smaller studies and highlights clear health risks for workers in computer factories. Among these was the Health and Safety Executive’s initial 2001 study of 4000 people at National Semiconductor, which showed statistically significant excesses of lung, stomach, and breast cancers among women and an excess of brain cancer among men, with some rates four or five times higher than average.”

“The HSE said it had received “ethical approval” to begin a new study at Greenock. Announced last June, and planning to look at various cases of cancer in more detail, it has been subject to significant delays. Professor Andrew Watterson, of Stirling University’s occupational, environmental and public health group, said: “The US study confirms some of the evidence we have seen at Nat Semi. The families of former Nat Semi workers have been calling for years for a Europe-wide or international study into the industry, and this is the next best thing.”

“Jim McCourt, of Phase Two, a support group for Nat Semi workers, said: “We’ve no doubt working in Nat Semi is dangerous. The scale of this study shows the industry has a real problem, and we would call on the HSE to initiate a UK-wide study.”

http://www.theherald.co.uk/

Fiber Optics and EMF’s October 22, 2006

Posted by healthyself in Amplified Signals, Amplitude, Cell phone safety, Cell Phones, Children's health, Conversations, Cordless Phones, Decision Making, Distribution, Electrical Components, Electrical Pulses, Electrical Surges, Electrical Wiring, Electrochemical, Electromagetic pollution, Electromagnetic Communications, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic Radiation, Electromagnetic Spectrum, Electromagnetic waves, Electrosensitivity, Electrosmog, ELF, EMF Research, EMF's, EMR, Environment, Exposure, Family, Fiber Optic, Health related, HOuseholds, Lifestyle, Light, light beam, MCS, Men's Health, mobile telephones, Networks, Pulsed Radiation, Pulses, radiation, Radio Frequency Radiation, Radio Waves, Radios, Research, Research Needed, Safety, Solutions, Stress, Telecommunications, Telephony, transmission, Who is Affected?, Women's Health, Workplace.
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“No EMF or RF interference
The very nature of fiber optic transmission makes it virtually immune to electromagnetic and radio-frequency interference – and even lightning – which can be especially valuable in environments such as power-transmission or generating facilities, antenna or broadcast installations, or certain industrial environments.”

http://www.panasonic.com/business/security/fiberoptics.asp

‘Manageable’ fear a handy safety tool

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‘As fiber optics continues to spread throughout broadband communication plants, and new fiber equipment is beginning to feature higher power outputs, many safety and training professionals in the industry are re-energizing their fiber optic training efforts. Kevin Wilkes, director of field services for Integration Technologies, says that while fiber optic technology continues to change, fiber optic safety issues have not. In fact, he believes new technology only underscores the importance of long-term safety training that needs a healthy dose of fear to succeed.

“I think probably 99 percent of the concerns about safety involving fiber have not changed with technology,” says Wilkes. “I think they’ve been amplified by higher launch powers and connectivity. But, the basis is still there for problems with the eyes.

“It’s pretty straightforward…. Of course, there are other things to worry about. But they’re pretty trivial compared to the eyes. You instill what I call ‘manageable’ fear. And, there’s nothing wrong with that at all. Because too much comfort breeds carelessness.”

http://www.cedmagazine.com/article/CA6261762.html

Advantages of Fiber Optic Systems

“Fiber optic transmission systems – a fiber optic transmitter and receiver, connected by fiber optic cable – offer a wide range of benefits not offered by traditional copper wire or coaxial cable. These include:1. The ability to carry much more information and deliver it with greater fidelity than either copper wire or coaxial cable.

2. Fiber optic cable can support much higher data rates, and at greater distances, than coaxial cable, making it ideal for transmission of  serial digital data.

3. The fiber is totally immune to virtually all kinds of interference, including lightning, and will not conduct electricity. It can therefore   come in direct contact with high voltage electrical equipment and power lines. It will also not create ground loops of any kind.

4. As the basic fiber is made of glass, it will not corrode and is unaffected by most chemicals. It can be buried directly in most kinds of  soil or exposed to most corrosive atmospheres in chemical plants without significant concern.

5. Since the only carrier in the fiber is light, there is no possibility of a spark from a broken fiber. Even in the most explosive of atmospheres, there is no fire hazard, and no danger of electrical shock to personnel repairing broken fibers.

6. Fiber optic cables are virtually unaffected by outdoor atmospheric conditions, allowing them to be lashed directly to telephone poles or existing electrical cables without concern for extraneous signal pickup.

7. A fiber optic cable, even one that contains many fibers, is usually much smaller and lighter in weight than a wire or coaxial cable with similar information carrying capacity. It is easier to handle and install, and uses less duct space. (It can frequently be installed without ducts.)

8. Fiber optic cable is ideal for secure communications systems because it is very difficult to tap but very easy to monitor. In addition, there is absolutely no electrical radiation from a fiber.”

http://www.commspecial.com/fiberguide-print.htm

What is Flickering? or the Flicker Rate? October 5, 2006

Posted by healthyself in 16-25 Hz, 3-60 Hz, 50 Hz, 60 Hz, Adolescents, Bioeffects, Biological Effects, Blogroll, Cell phone safety, Cell Phones, Children's health, Chromosomal damage, Chronic Fatigue, Definitions, Electrical Components, Electrical Pulses, Electrical Wiring, Electromagnetic Communications, Electromagnetic pollution, Electromagnetic waves, EMF's, Environment, Epilepsy, Exposure, Eyes, Flickering, Frequencies, GHz, Health related, HOuseholds, Hz, Interdisciplinary, Lifestyle, light beam, nerves, Oscillate, Photosensitive, Pulsed Radiation, radiation, School administrators, Spacial Contrast Patterns, Symptoms, Teenagers, Telephony, Toxic Interactions.
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Flickering is the opposing changes in intensity of luminosity. This is usually caused by flashing, but can also be caused by spatial contrast patterns that oscillate at dangerous frequencies; the type of images that people create to deliberately stimulate a response in the recipient that makes them believe the image is moving or changing. For people with photosensitive epilepsy, flickering causes many of the nerve cells that process visual stimuli to all fire at once, resulting in a seizure”

“Along with the frequency of the flickering, the size and luminous intensity of the stimuli is significant for people with photosensitive epilepsy. The greater the intensity and larger the size of the stimuli, the greater the danger of provoking seizures caused by flickering at dangerous frequencies.”

“The colour red is particularly dangerous due to its longer wavelength that stimulates cones in the retina. There have been cases where photosensitive epileptic seizures have been triggered by cyclists while setting up the red flashing rear lights on their bicycle. Even when there is no perceived difference in the luminosity of the contrasting colours, red flickering is far more likely to cause seizures than other colours.”
“Television programmes are thought to be the most common cause for triggering photosensitive epileptic seizures. The most famous incident of photosensitive epilepsy caused by a television programme is the Pokémon episode, Electronic Soldier Porygon , which was aired in Japan in 1997. Nearly 700 children were admitted to hospital through photosensitive epilepsy that was thought to have been induced by the episode.”

People with photosensitive epilepsy can have seizures triggered by flickering or flashing in the 4 to 59 flashes per second (Hertz) range with a peak sensitivity at 20 flashes per second as well as quick changes from dark to light (like strobe lights).When content violates either the general flash threshold or the red flash threshold , users are warned in a way that they can avoid it

Content does not violate the general flash threshold or red flash threshold

“Allowing people to choose whether or not they receive the content is better than not providing a warning, but there are other factors to consider. The first is that as photosensitive epilepsy is most common in children, it could be that they don’t understand or appreciate the significance of the warning. It isn’t just children; people with reading difficulties or speakers of languages other than the language of the warning may also inadvertently be exposed to content that could induce seizures.”

“Although the size of the stimuli is significant, there is still a danger of material that is considered to be safe being changed by the visitor. For example, low vision users increasing the size of flickering material, or someone leaning in close to the screen.”

“The safest way to avoid causing photosensitive epilepsy is to completely avoid creating web content that flickers.”

“People with photosensitive epilepsy who suddenly find themselves exposed to material that could trigger a seizure should immediately cover one eye with the palm of their hand to reduce the number of brain cells that are stimulated by the flickering content, and either close the page or navigate away from the page.”

“Photosensitive epilepsy is a form of epilepsy that is triggered by visual stimuli, such as flickering or high contrast oscillating patterns, and it’s believed that around 3% to 5% of people with epilepsy are susceptible to photosensitive material. Photosensitive epilepsy is usually triggered where the flicker rate is between 16Hz to 25Hz, although it’s not uncommon for seizures to be triggered by flicker rates between 3Hz to 60Hz. The condition most commonly effects children, and is usually developed between the ages of 9 and 15 years, and most prevalent in females.”

What are the Wavelengths of the Electromagnetic Spectrum? September 27, 2006

Posted by healthyself in Blogroll, Cell phone safety, Definitions, Distribution, Electromagnetic Communications, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic Spectrum, Electromagnetic waves, Electrosensitivity, Electrosmog, ELF, EMR, Endogenous Fields, Environment, Frequencies, Gamma Rays, Infrared, Light, Microwave exposure, mobile telephones, Noise, particle, Radio Waves, Radios, Sound, Spectrum, Telecommunications, Telephony, transmission, UHF, Ultraviolet, VDT, Visible Light, X-Rays.
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“The electromagnetic spectrum is the distribution of electromagnetic radiation according to energy (or equivalently, by virtue of the relations in the previous section, according to frequency or wavelength).”

Regions of the Electromagnetic Spectrum

“The following table gives approximate wavelengths, frequencies, and energies for selected regions of the electromagnetic spectrum.”

Spectrum of Electromagnetic Radiation


The notation “eV” stands for electron-volts, a common unit of energy measure in atomic physics. A graphical representation of the electromagnetic spectrum is shown in the figure below.

The electromagnetic spectrum


“Thus we see that visible light and gamma rays and microwaves are really the same things. They are all electromagnetic radiation; they just differ in their wavelengths.”

The Spectrum of Visible Light

The visible part of the spectrum may be further subdivided according to color, with red at the long wavelength end and violet at the short wavelength end, as illustrated (schematically) in the following figure.

The visible spectrum


http://csep10.phys.utk.edu/astr162/lect/light/spectrum.html

What is Analog? September 26, 2006

Posted by healthyself in Amplified Signals, Amplitude, Bioeffects, Biological Effects, Blogroll, Cell phone safety, Cell Phones, Cordless Phones, Decision Making, Definitions, Digital, Electrical Components, Electrical Surges, Electrical Wiring, Electrochemical, electromagnetic, Electromagnetic Communications, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic Spectrum, Electromagnetic waves, Electrosensitivity, Electrosmog, EMF Research, EMF's, EMR, Environment, Frequencies, Health related, Heart Disease, Internet, Lifestyle, Light, Microwave exposure, mobile telephones, Pulsed Radiation, radiation, Radio Waves, Radios, Risk Factor, Sound, Speakerphones, Telecommunications, Telephony, Toxic Interactions, Transducer, Transfer, transmission.
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Analog – A signaling method that uses continuous changes in the amplitude or frequency of a radio transmission to convey information. It relies on a continuous (rather than pulsed as in digital) electrical signal that varies in amplitude or frequency in response to changes of sound, light, position, etc., impressed on a transducer in the sending device; opposite of digital.

http://www.mobiledia.com/glossary/23.html

What is Fiber Optic? September 26, 2006

Posted by healthyself in Analog, Blogroll, Cell phone safety, Cell Phones, Communication, Conversations, Cordless Phones, Decision Making, Definitions, Digital, Electromagnetic Spectrum, Electromagnetic waves, Electrosensitivity, EMF Research, EMF's, Environment, Fiber Optic, Financial Considerations, Frequencies, HOuseholds, Internet, Lifestyle, Light, mobile telephones, Monitoring, Optical, Pulses, Telecommunications, Telephony, transmission.
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Fiber Optic – Using fine, transparent lines for the transmission of data, digitally encoded into pulses of light. In terms of telephone conversations, a 1/2″ copper cable can transmit about 25 conversations analog, whereas a 1/2″ fiber optic line can transmit 193,536 conversations digitally.

http://www.mobiledia.com/glossary/101.html

CFO’s, COO’s, IT, HRD, Admin: Take Precautions September 26, 2006

Posted by healthyself in Bioeffects, Biological Effects, Blogroll, Brainwave Interference, Budget, Buzzing, Cell phone industry, Cell phone safety, Cell Phones, Communication, Community, Computer Rooms, Cordless Phones, Decision Making, Digital, Electrical Components, Electrical Surges, Electrical Wiring, Electrochemical, electromagnetic, Electromagnetic Communications, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic waves, Electrosensitivity, Electrosmog, ELF, Emergency Medicine, EMF Research, EMF's, Employees, EMR, Environment, Exposure, Financial Considerations, Frequencies, Funding, Government's role, Grants, Hand Portables, Handheld Units, Health related, High Frequencies, high voltage transmission lines, HOuseholds, HRD, Interdisciplinary, Internet, Legal Issues, Lifestyle, Long Term Health Risks, Low Frequencies, Magnetic, Memory Loss, Microwave exposure, Mobile Music, mobile telephones, Noise, Non Profit Organizations, Politics, Public Policy, Pulsed Radiation, Pulses, radiation, Radio Waves, Radios, Research, Research Needed, ringtones, Risk of Disease, Safe Levels, School administrators, Telecommunications, Telephony, Toxic Interactions, Traffic Pollution, Transfer, transmission, Who is Affected?, Workplace.
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“Research by the National Power Laboratories in Wisconsin shows that the average electronic machines modems, computers, etc.) experiences 3,000 transient events every month. Roughly 15% of all server crashes are caused by electromagnetic interference problems. These glitches cost U.S. industry $26 billion and the projected growth of this problem is at about 15% a year. Transients cause problems such as software crashes, hardware damage, and data loss or corruption. They all disrupt operations and cause economic losses. Transients can also have negative effects on human health. The greater the speed and the smaller microprocessors become, this makes them vulnerable to radiated and/or induced electromagnetic fields.

The internal configuration of the modern microprocessor is so compact that it is much more usceptible to electrical disturbances. The best way to cancel out the effects of undesirable transmissions is to screen electronic components from such sources. Organizations and applications ost affected by such problems include but are not limited to… Internet service providers, corporate
computer rooms, telecommunication and computer networks, e-Commerce facilities, electronic testing labs, banks, stock markets, industrial machinery, air-traffic control rooms, and many others.”

http://ece.gmu.edu/~pceperle/WebProjectFall00/EMhazzards/305_Proj.html