大自然给人类出了很多难题,“响沙之谜”便是其中之一。沙子为什么会响呢?人们提出各种各样的假说。有人认为“当人们在沙面上行走或用手劲揉搓沙子使它发生压缩、延伸时,其表面便产生电荷,我们把矿物的这种特征叫做压 Nature has given humankind a lot of problems, ”Sandy Riddle “ is one of them. Why does the sand ring? People make a variety of hypotheses. Some people think that ”When people walk on the sand or rub their hands to squeeze the sand to make it compress, extend, the surface will have a charge, we call this feature of mineral pressure