摘要
美国俄勒冈州科学家将一部水中收音器放进海平面下方几近七英里的挑战者号海渊，意外发现地球最深处居然相当嘈杂。水中麦克风留置该处数月，录下了鲸鱼的低沉叫声、上方经过船只的轰隆声，以及地壳深处因地震引起的渐强声响。“这里应该是世界上最安静的地方之一吧，结果却比我们所预期的嘈杂许多，”主导美国国家海洋暨大气总署这项计划的俄勒冈海洋学家罗伯特·兹亚克表示，“大自然与人为的声响真的几乎不曾间断。”
The deepest spot on Earth is a surprisingly noisy place, scientists from Oregon discovered when they lowered a hydrophone almost seven miles below the ocean surface into the Challenger Deep. Left in place for several months, the device recorded the booming cries of whales, the rumble of ships passing overhead and crescendos from earthquakes deep in the planet＇s crust.
