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electromagnetic radiation
noun
- radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x-rays, and gamma rays.
electromagnetic radiation
noun
- radiation consisting of self-sustaining oscillating electric and magnetic fields at right angles to each other and to the direction of propagation. It does not require a supporting medium and travels through empty space at the speed of light See also photon
electromagnetic radiation
- Energy in the form of transverse magnetic and electric waves. In a vacuum, these waves travel at the speed of light (which is itself a form of electromagnetic radiation). The acceleration of electric charges (such as alternating current in a radio transmitter) gives rise to electromagnetic radiation. Other common examples of electromagnetic radiation are x-rays, microwaves, and radio waves. A single unit, or quantum, of electromagnetic radiation is called a photon .
- See also electromagnetism
Word History and Origins
Origin of electromagnetic radiation1
A Closer Look
Example Sentences
At even longer wavelengths, electromagnetic radiation can interact with electronic systems and can be used to disable computers and control systems.
Unfortunately, this type of electromagnetic radiation does not leave a telltale trace like sunburn, which makes it difficult to be certain of the explanation.
Unlike traditional telescopes, which use lenses or mirrors to focus visible light, this contraption used metal and circuitry to collect interstellar radio waves, low frequency ripples of electromagnetic radiation.
The light you can see from a candle or light bulb is electromagnetic radiation.
You have no way to touch or feel or even suspect the existence of electromagnetic radiation, but that is where the voices are coming from.
What it does say is that our brains are sensitive to this electromagnetic radiation, which is fascinating.
Does this mean that the mental disturbances arise from some form of electromagnetic radiation?
That will stop most electromagnetic radiation, but not this stuff!
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