Category talk:03 Electromagnetic radiation
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The phenomenon of EMR can be explained by two physical theories at the same time: the wave theory and the quantum theory. | The phenomenon of EMR can be explained by two physical theories at the same time: the wave theory and the quantum theory. | ||
EMR can be seen as a wave with time-varying electric (E) and magnetic fields (B). These vector fields have a sine waveform, are oriented at right angles at each other and oscillate perpendicular to the direction of wave travel (Fig.). | EMR can be seen as a wave with time-varying electric (E) and magnetic fields (B). These vector fields have a sine waveform, are oriented at right angles at each other and oscillate perpendicular to the direction of wave travel (Fig.). | ||
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Revision as of 15:29, 24 October 2013
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Basic physical equations
Life on earth would be impossible without solar energy. The source of the sun's energy are nuclear fusion processes of hydrogen to helium. Electromagnetic radiation (EMR) is generated on the surface of the sun and carries solar energy through the space to the earth.
The phenomenon of EMR can be explained by two physical theories at the same time: the wave theory and the quantum theory. EMR can be seen as a wave with time-varying electric (E) and magnetic fields (B). These vector fields have a sine waveform, are oriented at right angles at each other and oscillate perpendicular to the direction of wave travel (Fig.). File:800px-Onde electromagnétique.png
