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The entire electromagnetic spectrum is made up of ultraviolet, visible light, and infrared. The human eye can only see the light sector of the spectrum. The ultraviolet and infrared are wave energy that can not be seen by our eyes. William ...
http://wiki.answers.com/Q/Who_discovered_electromagneti...
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Electromagnetic radiation - Wikipedia, the free encyclopedia
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Electromagnetic radiation (sometimes abbreviated EMR ) is a ubiquitous phenomenon that takes the form of self-propagating waves in a vacuum or in matter. It consists of electric and magnetic field ...
en.wikipedia.org/wiki/Electromagnetic_radiation
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The electric and magnetic vector fields can be thought of as being the velocities of a pair of fluids which permeate space. In the absence of charges these fluids would be at rest, so that their velocity fields would be zero. ... This is a piture of electromagnetic waves...
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www.k12.nf.ca/stjosephsallgrade/7-8techpage/Mark/Front_...
www.k12.nf.ca/stjosephsallgrade/7-8techpage/Mark/Front_Page/electromagnetic_waves.htm
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It is a remarkable property of electromagnetic waves that they can carry energy to unlimited distances from the source. In these few paragraphs, we have discovered a lot about electromagnetic waves, using only Maxwell's equations.
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www.du.edu/~jcalvert/phys/emwaves.htm
www.du.edu/~jcalvert/phys/emwaves.htm
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Heinrich Rudolf Hertz (1857-1894) discovered electromagnetic waves in 1887, which are the basis of radio, and after whom the SI unit of frequency, hertz is named...
http://en.wikipedia.org/wiki/University_of_Karlsruhe_%2...
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The physicist Heinrich Hertz, born in Hamburg (1857 - 1894), discovered electromagnetic waves. His scientific works formed the basis for radio and television technology. The Heinrich-Hertz-School is the only "kooperative Gesamtschule" in Hamburg.
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www.ideafinder.com/history/inventors/hertz.htm
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Radiation is energy that travels and spreads out as it goes-- visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation. Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays.
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imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.h...
imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
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Ampere discovered that two long parallel wires carrying electric currents in the same direction attract each other magnetically, ... As a preliminary to looking at electromagnetic waves, we consider the magnetic field configuration from a sheet of uniform current of large extent. Think of the sheet as perpendicular to...
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galileo.phys.virginia.edu/classes/109N/more_stuff/Maxwe...
galileo.phys.virginia.edu/classes/109N/more_stuff/Maxwell_Eq.html
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What are electromagnetic waves ? ... Light, microwaves, x-rays, and TV and radio transmissions are all kinds of electromagnetic waves. They are all the same kind of wavy disturbance that repeats itself over a distance called the wavelength.
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www.colorado.edu/physics/2000/waves_particles/index.htm...
www.colorado.edu/physics/2000/waves_particles/index.html
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