CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY
Microwave monitor used to detect levels of microwaves in the environment. There has been an increase in the levels of microwaves in the environment due to the increased use of mobile phones. Mobile phones use low-power microwave signals to transmit calls. Some scientists believe that these microwaves are absorbed through the skull and can harm the brain due to their heating action.
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