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    • Aurora - Nature

      Nature· 18 hours ago

      It extended from west-north-west to north-north-east, and had a general altitude of 30°, though occasional streamers reached beyond Polaris. It was moderately bright, but certainly not brilliant, and showed no colour.

    • An Unusual π—µ Decay Track - Nature

      Nature· 23 hours ago

      THE accompanying photograph shows an event observed in an N.T.4 plate exposed for several hours at an altitude of some 90,000 ft. in balloon flights made recently at Bangalore ...

    • Notes - Nature

      Nature· 21 hours ago

      WE regret to learn that on Saturday, July 25, M, Prosper Henry, of the Paris Observatory, was found lying dead in the La Valoise Valley near Pomogen at an altitude of 1600 ...

    • Physical Notes - Nature

      Nature· 18 hours ago

      A. ANGOT proposes a new formula for calculating altitudes from barometric observations, based upon that given originally by Laplace. The existing method of calculation from ...

    • Our Astronomical Column - Nature

      Nature· 18 hours ago

      COMET 1913f (DELAVAN).—Delavan's comet is becom, ing a less favourable object for evening observation owing to the diminution of its declination and its movement westward among the stars. It ...

    • Types of Iridescent Clouds - Nature

      Nature· 19 hours ago

      IN NATURE of April 2, Prof. Chapman has an interesting article on the iridescent (mother-of-pearl) clouds observed by Prof. Størmer of Oslo. These clouds, which are unmistakable in appearance ...

    • The Isothermal Layer of the Atmosphere - Nature

      Nature· 21 hours ago

      Craig's contention (NATURE, January 7, p. 281) as to the isothermal layer is disproved by the results of theodolite observations on ballons-sondes. When a balloon is observed, its altitude ...