Farxinta harmonics-ka labaad ee spectrum ballaaran Tan iyo markii la helay saamaynta labaad ee aan tooska ahayn ee 1960-meeyadii, ayaa kicisay xiisaha ballaaran ee cilmi-baarayaasha, illaa hadda, oo ku saleysan is-waafajinta labaad, iyo saameynta soo noqnoqda, waxay ka soo saartay ultraviolet-ka daran ilaa fog infrared band o...
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