Diseases, Conditions, Syndromes

Targeted microwaves probably caused U.S. embassy illnesses: Scientists

(HealthDay)—Targeted microwaves were the likely cause of mysterious illnesses that afflicted staff and their families at U.S. embassies in Cuba and China, according to a U.S. National Academies of Sciences, Engineering, ...

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Radio frequency

Radio frequency (RF) is a frequency or rate of oscillation within the range of about 3 Hz to 300 GHz. This range corresponds to frequency of alternating current electrical signals used to produce and detect radio waves. Since most of this range is beyond the vibration rate that most mechanical systems can respond to, RF usually refers to oscillations in electrical circuits.

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