After decades of hearing a strange “ocean quack sound,” scientists have finally pinpointed its source. First detected by submarines 50 years ago, the strange noise, nicknamed “the bio-duck,” appears ...
Scientists have solved one of the acoustic world's riddles. It is a myth, they will announce today, that a duck's quack has no echo. But they will also add, a trifle sheepishly, that the echo of a ...
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