Radio waves


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Related to Radio waves: microwaves, electromagnetic spectrum

Radio waves

Electromagnetic energy of the frequency range corresponding to that used in radio communications, usually 10,000 cycles per second to 300 billion cycles per second. Radio waves are the same as visible light, x rays, and all other types of electromagnetic radiation, but are of a higher frequency.
References in periodicals archive ?
Parents may not be worried about their health, but they will likely think twice when it comes to the radio waves their children get exposed to during the school day.
The conference comes in a bid to ensure that radio waves that transmit the media message are free of any undesired interference.
They had nothing to do with the radio wave bursts, but just happen to be located in the same direction," explains astrophysicist Giorgos Leloudas, Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen and Weizmann Institute, Israel.
Radio waves have difficulty traveling through metal and the human body, however, when RFID tags are directly attached to a metal object or an ID card carried on a person's body, which tend to disable communications.
When an object that gives off radio waves is moving toward us, its radio waves get scrunched up a little.
Similar things have been done before using optical vortices and visible light, but not, to my knowledge, using radio waves," says Grover Swartzlander, a physicist at the Rochester Institute of Technology in New York.
antenna A transmitter or receiver of electromagnetic energy, especially microwaves or radio waves.
The college, the largest further education provider in Wales, will launch its presence on Radio Waves in the next few weeks under a name picked by a student.
Navy vessel mistakenly emitted unauthorized radio waves on Oct.
It will monitor radio waves from other operators and will not emit its own radio waves.
The RFID chips store information and send it via radio waves to a reader or handheld device that enables librarians to monitor the condition of the books and their location.
Eye doctors say some degree of reading-vision loss is inevitable with age, which is why a new procedure called conductive keratoplasty or CK - in which radio waves are used to reshape the cornea - has some baby boomers rejoicing.