Instead of X-ray scanners, European airports will use millimeter-wave scanners that utilize low-energy radio waves.
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The passenger steps into a machine where he or she is quickly scanned with radio waves.
The current official advice is that exposure to wi-fi radio waves is comparatively low.
Ward seem to drift in on the crackling radio waves of a distant time.
That is good enough to look at whatever is producing the pulsar's radio waves.
Instead of producing a clearly focused image, the various radio waves generate a mess.
That is not to say that radio waves cannot pack a punch from a distance.
James Clerk Maxwell's equations of electromagnetism, derived in the mid-19th century, predicted the existence of radio waves.
As light waves have shorter wavelengths than radio waves, the technology works at shorter distances and lower speeds.
LEDs be laid down, but also tiny solar panels and antennae that convert radio waves into electrical energy.
These methods convert ambient energy in the forms of light, vibration, heat, radio waves and so forth into electricity.
The uniqueness is what makes everything possible, from conducting metals to fluorescing coatings, from vibrating membranes to radio waves.
Ultrawideband gear sprays low-power radio waves across a huge range of frequencies, letting them penetrate walls, among other feats.
Recent discoveries, however, have such medgadgets being powered by photons, hip hop and now high-frequency radio waves.
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First, the relative positions of the two spacecraft will be measured to within a few millimetres by radio waves.
Radio waves are absorbed by our bodies, by walls, and even by vegetation.
Even something too small to emit visible light will probably give off radio waves and infra-red radiation (Jupiter does).
But the attraction of radio waves is that they are pretty much everywhere.
This is where four KGB officers would sit each day, intercepting radio waves from Helsinki and sending cables to Moscow.
This technique uses the energy in radio waves, broadcast from a transmitter and harnessed by an antenna, to generate electricity.
The radio waves were being broadcast on frequencies that would affect the local bat population and small vertebrates, she said.
This is a contraption for blocking radio waves which is named after one of the 19th-century pioneers of electrical technology.
If they give off radio waves at all, the signal is lost in the mess of gas in the neighbourhood.
But as people claim sensitivity to radio waves, he would welcome more research, given the rapid introduction of the new technology.
MRI, Dr Giorgio employed an ultrasonic scanner to help him guide the device which generated the radio waves to its target.
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Diodes are essential in radios to turn rapidly oscillating radio waves into a smoother direct-current signal that can power a speaker.
That is because the radio waves produced by each phone are reflected off the metal walls of the carriage, bus or lift.
We are able to observe a wide variety of cycles in our lives: patterns in the weather, the moon, radio waves, etc.
He was the first to satisfactorily demonstrate the existence of electromagnetic waves by building an apparatus to produce and detect radio waves.
At the moment, the telescopes it relies on are powerful enough only to detect beams of radio waves pointed directly at Earth.
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