Barrie Trower on the issue of microwaves.

Barrie Trower on the issue of microwaves.

Imagine the field around a magnet and imagine ordinary everyday static electricity. If you put the force field from the magnet with the force field from the static electricity you make a wave. This wave is called an electromagnetic wave. There are lots of different types of electromagnetic waves but they are all made of the same two things – magnetic and static. The only difference between the waves is their wavelength or the length of the wave and the number of waves that can be produced a second, i.e. the frequency. All of these waves are put into a table called the electromagnetic spectrum.

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