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Electromagnetic radiation can be described in terms of a stream of photons, which are massless particles each traveling in a wave-like pattern and moving at the speed of light. Each photon contains a certain amount (or bundle) of energy, and all electromagnetic radiation consists of these photons.
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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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The solar energy called visible light drives photosynthesis. Solar radiation is composed of electromagnetic energy that travels through space in a manner analogous to the motion of waves in water. The distance between the crests of waves is called the wavelength.
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www.phschool.com/science/biology_place/biocoach/photosy...
www.phschool.com/science/biology_place/biocoach/photosynth/electro.html
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Electromagnetic radiation - Wikipedia, the free encyclopedia
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Electromagnetic radiation (often abbreviated E-M radiation or EMR ) is a ubiquitous phenomenon that takes the form of self-propagating waves in a vacuum or in matter. It consists of electric and ...
en.wikipedia.org/wiki/Electromagnetic_radiation
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Electromagnetic spectrum - Wikipedia, the free encyclopedia
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The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic...
en.wikipedia.org/wiki/Electromagnetic_spectrum
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The type of electromagnetic energy is determined by wavelength, which is represented by the Greek letter lambda. Electromagnetic waves of different lengths possess very different properties. For instance, although visible light can pass through glass, electromagnetic waves of longer wavelengths are absorbed by glass.
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www.udayton.edu/~INSS/Dillon230/LECTHELP-4/Homeworks-13...
www.udayton.edu/~INSS/Dillon230/LECTHELP-4/Homeworks-13%20(EM%20radiation).html
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A permanent solution to the world energy problem, dramatic reduction of biospheric hydrocarbon combustion pollution, and cessation of building nuclear power plants (whose nuclear component is used only as a heater) could be readily accomplished by the scientific community.
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www.cheniere.org/techpapers/on_extracting_EM%20energy.h...
www.cheniere.org/techpapers/on_extracting_EM%20energy.htm
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What is electromagnetic energy? ... Electromagnetic energy (EME) can best be described as waves of electric and magnetic energy moving together through space. EME is emitted by natural sources like the Sun, the Earth and the ionosphere.
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www.acma.gov.au/ACMAINTER:STANDARD::pc=PC_1719
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