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Show "Fatigue" of Metal. Recent experiments confirm the earlier observations, following') dls-vettjof dls-vettjof Hertx, onthoUatl6" in- fon ultrsSP nJTcCllght This fatigue affects the capacity of metals for photo-electric effects. The observations of Stanley Allen of the fatigue of zinc fndicato that the application appli-cation of the longor light-waves brings about a certain amount of recovery of photoelectric activity. Those results, although primarily of tochnlcal Interest Inter-est only, possess considerable practical practi-cal importance. I opular Electricity. Simplicity ana NoMIt' Between simple r.nd noble v"rBns thoro Is always a quick liitelllBPnco; .they recognize nt sight and meet on h better ground than the talents and skills they may cbnnco to possess, namely, on'sincerlty and uprightness. Emerson. jV |