VICTOR HABBICK VISIONS / SCIENCE PHOTO LIBRARY VICTOR HABBICK VISIONS / SCIENCE PHOTO LIBRARY
Mobile telephone danger. Conceptual computer ill- ustration of the potential danger from mobile telephones. A hand is holding a mobile, or cellular, telephone in front of a brain. Mobile phones use low-power microwave radio signals to transmit calls. Some scientists believe that these microwaves harm the brain through their heating action, and that they can cause brain tumours.
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