Abstract
IN ordinary circumstances, about three meteors are visible per hour at a given place. Such average meteors are visible at a distance of at least 100 km., and their mass seems to be in the neighbourhood of 6 × 103 gm.1. Thus the mass falling per hour on an area of order 3 × 1014 cm.2is about 2 × 102 gm. ; or 6 × 1017 gm. per square centimetre. Taking the density as 3, we find that the rate of accumulation is 2 × 1017 cm. thickness per hour or 2 × 105 cm. in 100 million years.
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Lindemann and Dobson, Proc. Roy. Soc., A, 102, 419; 1922.
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JEFFREYS, H. Quantity of Meteoric Accretion. Nature 132, 934 (1933). https://doi.org/10.1038/132934b0
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DOI: https://doi.org/10.1038/132934b0
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