The two-quanta explanation of the depend
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M. A. Bouman; H. A. Velden
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Article
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1949
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Springer-Verlag
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English
β 135 KB
In 194zt, three independent approaches were developed, towards establishing the number of quanta effectively absorbed by the visual purple and necessary for light-perception (van der Velden, 1944. These methods were independent of the loss of light caused by reflection and absorption in the various