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EbookBell Team
4.0
76 reviewsThe laws of physics dictate that, whether we like it or not, we are all exposed to electric, magnetic and electromagnetic fields produced by the simple fact of using electricity. The number of electronic devices that radiate such fields has not stopped growing since the end of the 19th Century, when the first wireless communication took place and the spread of electricity began.
These devices have radically changed our lifestyle. They provide comfort, make tasks easier and offer opportunities for medical diagnosis and therapy. They have also deeply changed the way we communicate. Every proposed remote service must exist independently. In order to avoid interference between them, each one has its own frequency, so the radiation extends across the entire frequency spectrum.