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History of magnets

How do magnets work?

Magnetic strength and measurement

Uses of magnets for common ailments

Application of magnetic therapy

Magnetic Therapy Research

Magnetic water

Animals and Magnetic therapy


Painkillers And Their Side-Effects

How Healthy Are You?

Magnetic strength, types and measurement

    Not all magnets are created equal. Magnets come in many shapes and forms. Magnets are used for hundreds of applications from large industry purposes like the automotive industry to domestic applications such as audio speakers; you will even find them in your television. With so many different types, shapes, and strengths of magnets it can be easy to mistake an industrial magnet for a healing magnet. In this chapter we will discuss the difference between the various materials magnets can be made of and their applications.

Ferrite magnets

    Hard ferrite (ceramic) magnets were developed in the 1960's as a low cost alternative to metallic magnets. They are made from strontium carbonate and iron oxide both of which are readily available and low in cost. Even though they exhibit low magnetic fields (compared with other permanent magnet materials) ,ferrite magnets are widely used for industrial and domestic purposes. Ferrite magnets have good resistance to demagnetization, excellent corrosion resistance and the biggest advantage of such economic cost.

    Ferrite magnets are made in many shapes and sizes, cylinders, bars, discs, horse shoes and rings. You will find ferrite magnets in the following places:

Loud speakers,
microphones,
cycle dynamos,
D.C. motors,
calculators,
computers,
cars and motorcycles,
toys and many more.

    The positive benefits of ferrite magnets are :

They retain their magnetism for a very long time.
They have a high stability and do not demagnetise very easily even in high temperatures.
They are relatively low cost to produce.
They can be manufactured to be flexible, by mixing the ferrite with plasticized rubber compounds, which creates a bendy and pliable magnet.

    The main drawback of ferrite magnets is that they are quite fragile and tend to break easily, so they should be handled with care.

    Ferrite magnets are used for healing purposes. They are commonly found in magnetic wraps, straps, magnetic bedding and shoe insoles (using flexible ferrite magnets). Whilst ferrite magnets will keep their magnetism for a very long time you must always be careful to ensure that their strength is adequate. Each magnet should be at least 800 gauss. You should also be wary of products that could be easily damaged as once the magnets are broken the magnetic device should be discarded.

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