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Propagation of the Sound of Explosions

Nature volume 110, pages 619620 (04 November 1922) | Download Citation



IT has frequently been noted that on the occasion of great explosions there are curious anomalies in the propagation of the sound. Usually there is a normal zone of audibility in the immediate neighbourhood of the explosion, beyond this a zone of silence, where the sound is not heard, and again outside the zone of silence a second zone of audibility. It is remarkable that while an observer at say 50 miles away may not hear an explosion, an observer at 8o miles may hear it distinctly.

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