English to Turkish Other Science (general) Technical term

A mysterious sound heard in various countries in the world, named after Barisal. Barisal is a small port on the Tetulia mouth of the River Ganges, on the northern shore of the Bay of Bengal, about 130 mi. east of Calcutta, and about the same distance south of Dacca, in Bangladesh. From the 1870's there were reports of hearing sounds resembling cannon fire, coming from the south or southeast. They occurred mainly from February to October, very seldom from November to January, and the source was unknown. The sounds were often multiple, in groups of two or three. See:- http://mysite.du.edu/~jcalvert/waves/barisal.htm