国加利福尼亚死亡谷中的赛马场盐湖是一片湖床,湖床的粘土已龟裂成无数的小裂块。就区域内,有这样一个奇怪的现象:湖底的巨大自行缓慢移动,并在于涸的湖床上留下一道长长的痕迹。人们还发现,通常石头的形状和大小都不会对其移动造成影响,而且它们的移动方向也不定,可以随心所欲,任意“行走”。虽然没有人亲眼目睹石 The Salt Lake, a racecourse in the Death Valley, California, is a lake bed where the clay has cracked into innumerable small lumps. In the region, there is such a weird phenomenon: the vastness of the bottom of the lake moves slowly, leaving a long trail behind the dried lake bed. It has also been found that usually the shape and size of the stone will not affect its movement, and their direction of movement is not fixed, you can arbitrarily “walk”. Although no one witnessed the stone