EMFs – The Invisible Danger

Our environment is filled with invisible natural and non-natural electric and magnetic fields. The man-made electric and magnetic fields (EMFs) have been until recently largely ignored. A growing volume of research has heightened public awareness of the problem that EMFs may be negatively impacting the health and well-being of millions of people. EMFs have in common that they are all created by electrical devises in our houses, such as hair dryers, digital alarm clocks, toasters, coffee makers, TVs, or computers. The more you use these devices and the closer you are to them, the higher is your exposure to EMFs. EMFs behave differently however, in respect to other characteristics. As soon as your electrical device is plugged in, it is surrounded by an electrical field, even when switched off. In contrast, magnetic fields are only created when your device is switched on. In other words, magnetic fields are only present when electric current flows and the bigger the current the stronger the magnetic field. Furthermore electric and magnetic fields behave differently in relation to building materials. Fortunately most of the building materials shield electric fields to some extent however, magnetic fields are not attenuated by currently used materials. That means that your house is not shielding you against the magnetic fields of for instances, a high voltage transmission line. The only solution to escape these big magnetic fields, which can extent hundreds of meters, is to maintain a reasonable distance.

Man-made EMFs emanate from whatever conducts or uses electricity, such as appliances, wiring, distribution lines under homes and along streets and highways, railroad cars on electrified lines, and high-tension power lines. Our proximity to electricity exposes us to electrical fields twenty four hours per day. Only if you live far from a city with no electricity at all, like a hermit, you would be unaffected.

How dangerous is electromagnetic pollution for us?

The effects of electromagnetic pollution on our health is currently discussed controversially. From the point of view of a Geomancer, electromagnetic pollution causes bad chi (“sha chi”) in our environment, resulting in disharmony and energetic chaos. We are already exposed to various sources of discordant chi like geopathic stress, noises, strong winds, harmful chemicals and finally EMFs. The latter are a relatively new danger and we do not yet have any long term experience on their effects. More than ever we are permanently bombarded by invisible electromagnetic forces covering our surroundings like a fog with daily increasing density.

These electromagnetic forces have an effect on everything, from plant growth to our health and probably even the weather. Numerous epidemiological studies were done to investigate its biological effects. At first it was believed that man made sources like electricity, microwaves and radiofrequency, cannot influence our biological system. Electrical devices generally produce extremely low frequency (ELF) fields with frequencies up to 300 Hz. Other technologies produce intermediate frequency (IF) fields (300 Hz – 10 MHz) and radiofrequency (RF) fields (10 MHZ – 300 GHz). All these sources were considered as non-ionizing and unable to break chemical bonds. Several epidemiological studies have shown however, that these strong and multidirectional EMFs can disrupt normal cell polarity, and blood functions. This is because our complex body contains about 70% water, and our cells even consist of 97% water and about 3% salt, a solution that is able to conduct electricity. We are in fact an electrical system because all body functions and responses are controlled by bio-electromagnetic waves from the brain, and all our cells and tissues generate EMFs. Only in a natural and EMF free environment our bio-electrical system can work without influence and we are able to self-regulate and heal our vital bodily functions in an efficient way. The majority of the epidemiological studies on health effects of EMFs exposure have focused on the incidence of cancer. Much more likely is that the exposure to EMFs may act as a continuous immune-system stressor which can lead to a number of health problems, depending on the individual’s health and genetic predisposition. Everyone of us reacts differently due to our health state and sensitivity. People with high electrical s ensitivity and/or electromagnetic hypersensitivity can experience numerous symptoms like nausea, dizziness, headaches, irritability, depression, anxiety, slow or fast heartbeat rate, altered sugar metabolism, immune abnormalities, hair loss, pain in the teeth, deteriorating fillings, impaired sense of smell, or ringing in the ears.

More and more people living close to high voltage power lines show strong symptoms and even life-threatening illnesses. The U.S. Environmental Protection Agency publicly acknowledged in their report “Evaluation of the Potential Carcinogenicity of EMFs” that electromagnetic pollution is a serious threat to health. The report reviewed studies that had been completed prior to 1990 including six residential studies of children and adults’ over thirty studies of workers in electrical occupations, two studies of the relationship between children’s cancer rates and their father’s EMF exposures, as well as hundreds of laboratory studies.

What we can do?

Although we should be concerned about the potential risks of harmful EMFs, we can work on our environment to improve our life quality. Take a look around your home or office and you will find several possibilities to minimise your exposure to EMFs. The following list shows what you can do:

Check your environment with a Gauss meter (a meter designed to detect electromagnetic energy fields) to determine the places with EMFs in your immediate environment, as well as which sources generate the strongest fields.

Avoid electric blankets or sleeping on a heated waterbed. During night we should be able to recover and relax. This products generate a constant stream of electromagnetic energy that quietly charges your body for hours during night time. If you use an electric blanket, at least turn it off before you go to sleep (EPA recommendation).

Remove Electric Clocks and radios away from your bed. Leave them at least three feet away from your bed, desk, chair or from anywhere else you spend a great deal of time. Even digital clocks should be kept at least 30 cm away.

Avoid Power Lines or mobile phone towers. Don’t move in a house close to a power line or mobile phone tower. Maintain a distance of at least 250 m to these installations. Don’t spend your free time close to these installations.

Sit as far as possible from your television. The bigger the screen, the further away you should sit. Try to maintain a distance over 3 m away from the screen.

Avoid microwave ovens. When you have to use it, move about 3 metres away or leave the room. Although this report does not cover nutritional issues, consider that microwaves alter your food and additionally compromise your immune system. When the food is ready, take it out of the oven and leave to stand for 2-3 minutes to reduce free radicals in the food.

Unplug all your electronic devices after using.

Avoid using cordless electronic devices, such as electric toothbrushes, cordless phones (especially digital ones) and razors, all of which use magnetic induction to charge the battery. Such devices create large magnetic fields.

Electromagnetic energy can pass effortlessly through walls, so avoid setting up something on one side of a wall thinking it won’t effect you or anyone on the other side. Stay several metres away, depending on how strong a field the item in question produces.

Rearrange your office so that you and others are not exposed to EMFs from the backs and sides of video display monitors. In addition, you can minimise your exposure by sitting at least an arms length from your monitor. Get rid of dimmers and three-way electrical switches altogether. They emit especially strong EMFs.

Use your cell/mobile phone only with a hand free set/head set. Or better, try to “survive” without your cell/mobile phone. Don’t use the Blue Tooth variety and only make short calls. Do not carry the phone on your body. Avoid cordless phones.

Use crystals to harmonize your energetic field. Crystals have been found to be powerful tools to harmonize EMFs. Place a Unakite or Rose Quartz on or near your television or computer screen, or use Amazonite, Fluorite, Yellow Kunzite, Smoky Quartz or Black Tourmaline to neutralise the radiation of microwaves. If you are working a lot on your computer, then wearing Amazonite, Fluorite, Herkimer Diamond, Jasper (Brown), Kunzite (Yellow), Lepidolite, Malachite, Smoky Quartz Elestial, Sodalite, Tourmaline (Black) or Turquoise will help you. It is best not to wear more than two crystals at any one time if you have little experience with their use.

Protect yourself with quality Bio-Energy Devices. Some devices emit a subtle energy frequency which can metaphysically neutralise harmful energies and/or balance a person’s own bio-energy field. By expanding (strengthening) your bio-energy field and infusing it with life-energy, the energy level in and around the body increases, which enables you to ground and purify negative, unbalanced and chaotic energies, such as EMFs more effectively. The common factor in all these devices is that they do not remove the physically measured fields. Before buying this products you should test them (e.g. dowsing or muscle testing).

Applying these practical suggestions will help you to minimise your exposure to harmful EMFs. Be aware of what is happening in your environment and avoid unnecessary exposure. Although there is in fact no scientific proof about the positive effects of crystals and Bio-Energy Devices available, many sensitive people notice their positive effects immediately and many others experience significant improvement of long-standing health problems already after a short period of time. There are still many things on this miraculous world that we cannot explain scientifically, but this doesn’t proof that they do not exist. If you still have doubts, or are planning to build a house, it is always worth while to contact an experienced Geomancer or a Building Biologist, as your home is your heaven and it should be a place where you can recover fully and regain your strength. Copyright Newlife Marketing and Publishing 2008.

Microwave RF Links Explained

By and large, a microwave RF link uses the same kind of equipment as a more traditional mast-type RF link system, such as MF and HF and Wi-Fi. The main differences lie in antenna construction and the frequencies used. Microwave transmissions utilize much higher frequencies than other types of radio systems, normally in the Ultra High Frequency and Very High Frequency ranges. Some microwave systems utilize even higher frequency ranges. There are numerous advantages and drawbacks to using microwave technology in the RF links you use.

Antenna Differences

There are two main types of antennas for long distance RF signal propagation. The oldest type, more suited to straight voice transmission and used by MF & HF radio stations is the tower-mounted mast antenna. The higher the end of the antenna is, the longer the range for a given transmitter output strength. This type of antenna propagates the signal in a complete circle around the tip of the antenna. Signal aiming is achieved using microwave RF links. These are a dish-shaped receiver, with a high gain amplifier and collector at the focal point of the dish. This type of antenna provides for fairly secure line-of-sight signal transmission over long distances and is great for connecting to buildings to the same network wirelessly. Because the signal is highly focused, microwave RF is capable of being transmitted over longer distances and can use satellites to transmit signals cross-country or across oceans.

Frequency Spectrum of microwave RF Links

For the most part, RF links that utilize microwave antennas operate in the Very High Frequency and Ultra High Frequency ranges. VHF is the lower frequency range of the two, encompassing frequencies between 30 Megahertz and 300 Megahertz. These frequencies are ideal for low-bandwidth requirements, such as smaller MAN networks. With higher bandwidth MAN networks, higher frequencies are required to keep up with the throughput needs. These can include the 300 MHZ to 3GHZ UHF range or even higher Super High or Extremely High Frequency ranges.

Advantages and Drawbacks of Going Microwave

If your network needs to encompass users in a number of buildings throughout a city, and you want to cut down on the number of eavesdroppers, using microwave RF links is a good choice. You get more distance than a standard mast antenna and you get line-of-sight transmission, so any receivers not in that line of sight won’t be able to pick up your signal. However, if there is another building obstructing that line of sight, the signal will be blocked. Properly aiming a microwave antenna will make the difference between having a network connection and not having one; special equipment is available for this. Obtaining optimal signal strength at the receiver is almost as much art as science.

There are a number of considerations when deciding on a type of antenna system to use, whether you’re creating a Wide Area or Metropolitan Area Network, or even creating a neighborhood television studio.

Overview Of Information Technology (Part I)

The world has moved from the industrial age into information age. The whole world now depends on information, education as an institute is not an exception to this particular fact. The world has witnessed an information revolution, a combination of massive increase in the world’s inventory of information and the technical development of the means of processing and transmitting information

Computers are at the center of information technology. Information is what computers process, transmit and store. We use computers to create, manipulate, and manage information faster and more easily than with any system previously devised. So, better you understand computers and what they can and cannot so, the more power you will have to put information to work for you. Knowledge is power!

But information technology does not only involve computers. It also includes the way computer and communications technologies are combined, the result is “Information Technology” – INFOTECH – technology that merges computing with telecommunication links carrying data, sound, and video. Therefore, there are two parts to information technology- computers and communications.

Moreover, information technology (IT) as it is defined by the Longman Dictionary of contemporary English as the study or use of electronic processor for storing information and making it available; INFORMATION TECHNOLOGY. In addition to, before I forge ahead in relating it to the issue of Nigerian Education system, I still have to put into consideration the second concept of information technology. That concept is the communication technology.

Communications Technology:

This is the technology that is used to communicate (digital) data. Data communication, often called telecommunication, means transmitting data and information electronically from one point to another using the telephone, radio and microwave transmission devices, laser beams, optical fiber cables and direct wiring.

Computers can be standalone machines, unconnected to anything else. If all you are doing is word processing to write term paper; that may be fine. The communications component of the computer system vastly extends the range of PCs. Data communication provides information processing services throughout the office on the around the world.

Again; to be able to understand the concept of information technology, you need to be aware of how computers work. There are three key concepts that form the basis of computer operation:

First: The purpose of a computer is to process data into information. Data consists of the raw facts and figures that are processed into information for example, the votes for different candidates being elected to student government office. Information is data that has been summarize or otherwise manipulated for use in decision-making for example, the total votes for each candidate, which are used to decide who won.

Second: You should know the difference between hardware and software. Hardware consists of all the machinery and equipment in a computer system. The hardware includes among other devices, the keyboard, the screen, the printer and the “box”-the computer or processing device itself.

Software, or programs; consists of all the instructions that tell the computer how to perform a task. These instructions come from a software developer in a form (such as a CD-ROM disk) that will be accepted by the computer. Examples you may have heard of are Microsoft windows 98 or office 2000.

Third: regardless of type and size, all computers follow the same basic operations:

(1) Input,
(2) Processing,
(3) Storage and
(4) Output.