Waves that do not require a medium for their passage, and which travel at the speed of light (which is one form of electromagnetic wave; other forms are infrared, ultraviolet, x-rays, wireless waves, gamma rays, etc.).
Found on
http://jot101.com/2015/05/a-z-of-science-fiction-words/
A wave propagated through space by simultaneous periodic variation in the electric and magnetic field intensity at right angles to each other and to the direction of propagation. The electromagnetic spectrum includes radio waves, microwaves, infrared, visible and ultraviolet radiation, X-rays, gamma rays and cosmic rays.
Found on
http://www.braeunig.us/space/glossary.htm
All matter absorbs and emmits radiation covering a broad band of frequencies and wavelengths. This electromagnetic radiation has the velocity of the speed of light (2.998 x 108 ms-1) and arises from the vibrating electric charges in atoms and bonds. The r
Found on
http://www.chemicalglossary.net/definition/678-Electromagnetic_Waves
energy, unassociated with matter, that is transmitted through space by means of waves. In all instances it travels at 3×1010 cm or 186,284 miles per second, but it ranges in length from 1011 cm (electrical waves) to 10−12 cm (cosmic rays). In between those two extremes, in order of decreasing wavelength, are radio waves, microw...
Found on
http://www.encyclo.co.uk/local/21001
All matter absorbs and emmits radiation covering a broad band of frequencies and wavelengths. This electromagnetic radiation has the velocity of the speed of light (2.998 x 108 ms-1) and arises from the vibrating electric charges in atoms and bonds. The range of wavelengths, also known as the electromagnetic spectrum is shown below:
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http://www.encyclo.co.uk/visitor-contributions.php
Waves with both an electric and magnetic component. They are: radio, micro, infra-red, visible light, ultraviolet, X and gamma rays
Found on
http://www.fisicx.com/quickreference/science/glossary.html
Waves with both an electric and magnetic component
Found on
http://www.quick-facts.co.uk/science/glossary.html
Oscillating electric and magnetic fields travelling together through space at a speed of approximately 300,000 kps/186,000 mps. Visible light is composed of electromagnetic waves. The electromagnetic spectrum is a family of waves that includes radio waves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. All...
Found on
https://www.encyclo.co.uk/local/21221
No exact match found.
