electromagnetic energy


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electromagnetic energy

[i¦lek·trō·mag′ned·ik ′en·ər·jē]
(electromagnetism)
The energy associated with electric or magnetic fields.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

electromagnetic radiation

The energy that radiates from all things in nature and from man-made electrical and electronic systems. Electromagnetic radiation includes cosmic rays, gamma rays, x-rays, ultraviolet light, visible light, infrared light, radar, microwaves, TV, radio, cellphones and all electronic transmission systems. Electromagnetic radiation is made up of an electromagnetic field (EMF), which comprises an electric field and a magnetic field that move at right angles to each other at the speed of light. See spectrum, microwave and electromagnetic hypersensitivity.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
As electromagnetic energy generated by the sun interacts with the surface of the earth, certain wavelengths are absorbed while others are reflected.
Radiofrequency electromagnetic energy is the kind of energy given off by various electronic devices such as cell phones and Wi-Fi, as well as broadcasting and cell phone towers.
where [[tau].sub.1] = [[tau].sub.2] are the ratio between the electromagnetic energy density in the medium, [??], and the electromagnetic energy density [[??].sub.0], carried by the wave if propagation were in vacuum.
Its electromagnetic energy [??] is therefore equal to [[??].sub.q][c.sup.2]/2 for a single proton-q particle interaction.
But the new research, by a team at Harvard University in Cambridge, Massachusetts, USA, is the first to trap light while keeping its electromagnetic energy intact.
It's the first time light has been trapped while keeping its electromagnetic energy intact.
BECAUSE INDUCTION TECHNOLOGY USES ELECTROMAGNETIC energy to heat the wok itself, the black glass-ceramic surface stays cool to the touch while food cooks fast.
The probe transmits pulses of electromagnetic energy that are reflected back when they hit the liquid surface.
* Of all forms of electromagnetic energy, radio waves have the longest wavelength: from 104 to 101 meters long.
The technique, known as ground penetrating radar, works by sending pulses of electromagnetic energy through the soil.
A microwave is a form of electromagnetic energy, which falls at the lower end of the electromagnetic spectrum and is defined in a measurement of frequency as 300 to 300,000 MHz.
Over the ages modern physicists have described our energy system in many ways--qi circulating through acupuncture meridians, prana flowing through chakras, vital force, or electromagnetic energy fields.

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