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Once upon a time navigators would use the stars to figure out where they were and where they were heading, these days we have GPS navigators which arent that much different from the old days. GPS navigators in a nutshell work by having a number of satellites in the earths atmosphere which transmit data about the earth and objects on the earth to positions on the ground. Very similar to what the old navigators did but with a few extra technological features.

Originally GPS was used for the military, aviation and seafaring industry and satellites that provide this service began launching in 1978 and since have grown in numbers to a total of 24 circling the earth. These 24 satellites help to give such accuracy to navigation systems that they could just about pin point a pin in a hay stack. One thing that is important to note about a GPS service is that it is free, unlike telecommunications services which we pay for.

One of the first places that GPS navigation was used was in aviation. Pilots found it so much easier to track their flights and flight paths to their destination with GPS and today it still remains one of the most important parts of aviation. Later on GPS started to become available in many brands of luxury cars as a feature that allowed drivers to plan their trips to destination by finding the fastest route. Shortly after this cab drivers also got in on the act having custom systems installed in their cars to help them get to places faster and make their work more efficient.

Today we are starting to just about all types of cars come with a GPS navigation system and we have also seen portable units become available for people that dont have a GPS system in their car or enjoy the convenience of portability. Where used on the road, out in the country, on the water of in the air GPS navigation is a tool that allows you to pin point your position.

This technology is still growing and will continue to for sometime, new ideas and features to add to this relatively young technology are been added every few months. People are starting to combine them into multimedia systems and phones to create all in once packages that take care of all your personal technology need. There are even thoughts to implement it into expensive goods to help track them if they are stolen so that they can be tracked down and recovered quickly. The ideas that can be thought of with this technology are endless you could go on for days about it. So why not check them out and see how helpful they could be to your life and specifically your driving.

Jakob Culver is the owner and editor of AZArticles.com, a article directory and search engine where you can find more articles related to GPS Navigation Systems

Millions of Americans suffer from allergies and asthma. If symptoms persist or increase indoors the odds are dust mites are causing or enhancing the problem.

Dust mites are tiny members of the arachnid family that live in homes all over the world feeding on dead sloughed off skin, which comprises up to 80 percent of household dust. Up to ten percent of the weight of a two year old pillow can be due to dust mites, their feces and their dead skin.

For most people these little critters are benign freeloaders, but for people with asthma or allergies their waste can cause intense irritation and discomfort ranging from runny noses to severe asthma attacks. With the pervasive nature of dust mites making them the second most common cause of allergic reactions (after pollen) it would be nearly impossible to rid your home of them entirely.

However, with a little understanding of their preferred environment, it is easy to limit the effect dust mites can have on your health and comfort. Dust mites thrive in warm humid environments, as well as anywhere they are offered protection and food.

Furniture cushions, pillows, carpeting, upholstery, and particularly mattresses offer superb living quarters for dust mites. Remedying the issue may take a bit of effort, but will ultimately save unnecessary stress and discomfort. Be sure that all sheets, pillowcases, blankets, and mattress pads are changed and washed regularly in hot water to kill dust mites and remove their waste. Avoid clothe window covers, opting for plastic shades instead.

Vacuum frequently using a vacuum equipped with a high efficiency purifying air (HEPA) filtration system. Replacing carpet with hardwood or tiles may be necessary in certain cases.

The polyurethane foam used in most mattresses and cushions are for the tiny pests. This means that when allergy and asthma sufferers got to bed, where health experts say everyone should spend eight hours of every day, they are immersing themselves in a sea of allergens leading to a frustrating, unfulfilling night of sleep Recent years have seen the development of new technologies aimed at keeping mattresses microbe and dust mite free without sacrificing comfort.

The latex in latex mattresses and pillows creates an environment naturally unsuitable for dust mites, molds, bacteria, and other microbes. Amicor, a fiber in which active microbe eliminating ingredients are imbedded allowing it to maintain its antimicrobial properties through 200 or more wash cycles, can be used in fabrics for mattress and pillow covers.

When combined with wool, which is also naturally microbe resistant, a bed is created that provides an escape from allergens rather than a place where they wait to keep you itching.