Abstract
THAT the audibility of explosions must be due in some way to conditions in the upper air at considerable heights above the ground has long been recognised. It is therefore appropriate that experimental explosions should be included in the programme of intensive meteorological research during the Polar Year. The first experiments to be organised in accordance with this programme by Prof. H. Hergesell, president of the International Commission for the Investigation of the Upper Air, took place on December 15. These explosions were at Russian Harbour in Novaya Zemlya and at Oldebroek in Holland. At each place there were to be four explosions, at 6.0, 6.6, 7.0 and 7.6 G.M.T. Four Kühl undographs were to be operated in the neighbourhood of the Russian Harbour explosions, three in Novaya Zemlya and one in Franz Josef Land. Several undographs were to be used in Germany and one, at Flushing, in Holland. For co-operation by Great Britain, the sound-ranging apparatus which is in regular use for recording at Birmingham, Bristol, Cardiff and Nottingham the air waves caused by firing at Woolwich, was available, as well as similar apparatus at Foulness near the mouth of the Thames and at Hythe near Folkestone.
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Air Waves from Experimental Explosions. Nature 130, 1008–1009 (1932). https://doi.org/10.1038/1301008a0
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DOI: https://doi.org/10.1038/1301008a0