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    • Colour Phenomena in Ultra-Violet Vision - Nature

      Nature· 20 hours ago

      THE note by N. I. Pinegin1 suggests a more detailed discussion of the relation between the threshold intensities for scotopic and photopic vision in the ultra-violet. The ...

    • Visual Spatial and Temporal Summation - Nature

      Nature· 22 hours ago

      THE interpretation of the laws of spatial and temporal summation, found to be valid at the threshold of peripheral vision, is of importance for the understanding of the mechanism ...

    • Supraconductors of Small Dimensions - Nature

      Nature· 23 hours ago

      MENDELSSOHN1 has suggested that the high threshold value of supraconductive alloys and impure metals might be confined to regions of very small dimensions. In connexion with ...

    • A Ripple Effect in the Audiogram - Nature

      Nature· 23 hours ago

      IN the course of some psycho-acoustic experiments it was found that one observer's thresholds of acuity at two frequencies separated by only a few tens of cycles differed ...