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在宾西法尼亚州白金汉郡内,有一奇异之处。在一片森林中,坐落着一片空旷地,散落着大大小小各式各样的鹅卵石和岩石,这一地区似乎不生长任何植被,只有地衣粘在岩石上。正是这些岩石本身,使得这个地方远近闻名——因为它们会鸣响。石头通常是不会发出任何响声的,但如果用小锤轻轻敲击这些特殊的石头,它们就会回响,并且发出一种跟钟声不太相同的响声。为什么它们会发出响声这在科学界仍然是个谜,这些岩石本身是由灰绿岩石构成的,它们与构成地壳的岩石属同一种类型。另一奇异之处是,这些由同一物质构成的岩石,当敲击它们时,不是都能发出回响,仅有三分之一会发出响声。
There is something bizarre in Buckinghamshire, Pennsylvania. In a forest, there is an open space scattered with large and small pebbles and rocks. The area does not seem to grow any vegetation. Only the lichens stick to the rocks. It is these rocks themselves that make this place famous - because they will ring. Stones usually do not make any noise, but if you tap the special stones with a small hammer, they will reverberate and emit a sound that is not the same as the bell. Why they can make noises is still a mystery in the scientific community. The rocks themselves are composed of gray-green rocks, which are of the same type as the rocks that make up the earth’s crust. Another bizarre thing is that these rocks made of the same material, when they are struck, are not all capable of reverberating, and only one-third will make a noise.