What strange phenomena are there in the desert?

One of the strange phenomena: "Wear leather clothes early and yarn at noon". Because of the large specific heat capacity of stone, the temperature difference between day and night changes dramatically. It's cold in the morning and hot at noon. The coastal areas are close to water, and the specific heat capacity of water is large, so is the solar radiation. Water should absorb more heat and release it at night.

The second strange phenomenon: singing sand, that is, the sand that makes sound. The basic principle of sand whistling lies in the movement of air between grains of sand. When sand slides, the pores between them will expand for a while and contract for a while. Air enters these holes for a while, and then it is squeezed out from these holes, so it vibrates and makes a sound.

The third strange phenomenon: "gravel circle". The "gravel circle" in the desert looks like a man-made arrangement, but it is not. It is a circular gravel ring formed on the ground after hundreds of years of thermal expansion and cold contraction, which is actually naturally formed.