electromagnetic spectrum


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electromagnetic spectrum

See electromagnetic radiation.

electromagnetic spectrum

[i¦lek·trō·mag′ned·ik ′spek·trəm]
(electromagnetism)
The total range of wavelengths or frequencies of electromagnetic radiation, extending from the longest radio waves to the shortest known cosmic rays.

electromagnetic spectrum

electromagnetic spectrumclick for a larger image
electromagnetic spectrumclick for a larger image
electromagnetic spectrumclick for a larger image
electromagnetic spectrumclick for a larger image
The ordered array of known electromagnetic radiation, extending from the shortest cosmic rays, through gamma rays, X-rays, ultraviolet radiation, visible radiation, and infrared radiation. It includes microwave and all other wavelengths of radio energy. See the illustration for a more detailed view of this spectrum.
References in periodicals archive ?
Determining how a specific band of electromagnetic spectrum provides the greatest value must include consideration for the greater public interest.
VIDEO EXTRA: Watch a video about the electromagnetic spectrum at: http://missionscience.
The energies measured and studied are in the electromagnetic spectrum, wh ich includes infrared, visible, and ultraviolet light; geomagnetic and electromagnetic fields; and vibration.
XTE narrowed the BATSE error box--the area of the sky from which the pulsations emanate--and gave ground-based observers an opportunity to conduct a search for counterparts in other regions of the electromagnetic spectrum.
It is becoming apparent that the manipulation of the electromagnetic spectrum (EMS) through a variety of toolsets, will dictate the actions of commanders in the 21st century.
We're using the Electromagnetic Spectrum as a domain and as a means, and we understand and grasp it.
Market Segmentation by UV Electromagnetic Spectrum 09.
Contract notice: Maintenance of the system to map the electromagnetic spectrum.
It performs electromagnetic spectrum operations mission planning for all force levels from tactical through Joint Task Force, with an emphasis on the Brigade Combat Team level.
If we have this source of coherent light that spans a huge region of the electromagnetic spectrum, we would be able to make the highest resolution light-based tabletop microscope in existence that could capture images in 3-D and tell us exactly what we are looking at.
So, depending on which region of the electromagnetic spectrum a telescope uses to look at the night sky, the result will be a very different picture.
The popular notion is that the space between stars--besides the odd planet or two--is pretty much nothing at all, but astrophysicists have been looking at interstellar ions, atoms, molecules, and solid material for some time now using ultraviolet, optical, infrared, and millimeter parts of the electromagnetic spectrum.

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