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efectivamente, supongamos que se tiene un sistema compuesto por un gran número de átomos, exitados con ayuda de la frecuencia . elijamos a la frecuencia como indicador del paso del tiempo en esta muestra.
but how this effect could be attributed to the sample as a whole? generally speaking, it is rather strange to associate the doppler effect with time course or to choose some concrete frequency of a specific process as an indicator of time course. really, let be a system consisting of a great number of atoms which are excited by help of light with a frequency . let us choose the frequency as an indicator of time course in this sample.
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