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флуоресценција

A physical phenomenon whereby an atom of a material absorbs a photon of light an immediately emits a photon of longer wavelength. If there is a significant delay the phenomenon is called phosphorescence rather than fluorescence. It is interesting that "phosphors" used in lamps exhibit "fluorescence," not "phosphorescence." (See PHOSPHOR)

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Actividade/ Sector: Water bodies Category: Oceans

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The ocean covers nearly 71% of the Earth’s surface and is divided into major oceans and smaller seas. The three principal oceans, the Pacific, ...