"Damn, it's not that evil, is it?" The old ghost said in surprise: "How can there be a highway that automatically rolls over?" ”

"There really is!" I say.

Duoduo and I have indeed heard of this highway! At that time, we were discussing the topic of "The Unsolved Mysteries of the World" in a debate class. I remember we were talking to a lot of people about whether it was some kind of magnetic field that caused the accident. However, the U.S. government has basically thought of all the reasons we can think of. And they have all been checked one by one, but these are not the reasons!

Regarding this highway, many people say that it is due to the power of aliens. Others have been falsely accused of being a "cursed place" by cults. But no matter what we say, the old ghost just doesn't believe it.

In this way, in the midst of walking and arguing, it was getting late. With no car to assist us, and looking for this and that along the way, we were moving much slower. It took most of the day, and I didn't go far.

Listen to Adams' reminder that it cools down dramatically at night. Therefore, we chose a small hill that was neither tall nor low in the evening before the sunset and set up our tents. In front of the mound was a sudden, dry crack that was, and I deduced that it should have been a riverbed.

In this dry riverbed, there are stones dragging "tails" one after another! In fact, it is not an exaggeration to say that the tail is the mark left by the movement of the stone across the soil.

According to Adams, this is a very strange phenomenon in this area of Death Valley, and it is the only one of its kind here!

The huge boulders here move slowly on their own, leaving a long trail on the dry lake bed, what I call the "tail". This strange phenomenon has puzzled scientists for decades.

After many scientists' research, one of the results came to one of the explanations: wind!

Their speculation was this: when the wind blew eastward, the stones were pushed eastward; When the wind blows north. The stone was pushed northward. Death Valley is one of the hottest places in the world during the day, but at night, it's very cold and sometimes stormy.

The rain makes the hard ground soft and wet, and the wind turns the water on the ground into a thin layer of ice. Then. High winds can make heavy stones move along flat, smooth ground. When the sun comes out in the morning, the ground is dried again.

According to local media reports, a group of young scientists from NASA conducted an in-depth study of the strange phenomenon of rock drifting in Death Valley, California. A large number of measurements were collected, and more valuable new discoveries were made.

New findings suggest that the temperature and humidity in the region during winter can guarantee ice formation. This discovery provides strong support for the existing theory that ice guides the movement of rocks.

A NASA geologist says he has found the answer to the rock's drift. Some professors also believe that rocks are wrapped in ice during the winter months. Then as the snow melts on the lakebed, it becomes muddy. The ice causes the rocks to float on top of the dirt, and the rocks can easily "walk" under the strong desert winds.

A small ice floe with exactly one plane pointing downwards leaves a trail on the soft mud.

The professor pointed out that under the right conditions, a light breeze can make the rocks walk. Because the ice makes them float, it reduces the friction between the faces.

Adams also said: "Just this year. Researchers at the Complutense University of Madrid have found that strong winds in winter direct the lagoon to produce currents. Push the sailstone to slide over the surface of the microbial secretion. When the lagoon dries up and exposes the surface, the trajectory of the sailstone appears on the ground.

Therefore, the reason for the movement of the stones comes from the current formed by the strong winds blowing the lake water in winter. The flow rate of water caused by strong winds can reach two meters per second, which is enough to move stones. ”

In addition, some scientists believe that there is another important unexpected factor in the movement of the stone - the microbiota. This microbiota is made up of cyanobacteria, unicellular algae, and other small organisms. They secrete a smooth substance and fall off to form sedimentary sludge. Provide a smooth platform for boulders to move on.

There are many opinions about the mystery of the stone drift. In short, when a point of view is put forward, there will be people who oppose it. Whichever one is more authoritative, I'm not convinced.

If you want to say the wind. So, why aren't the stone traces in front of us moving in one direction? In this way, microorganisms or some other "mysterious power" seem more reliable.

After setting up the tent, a few of us started to set up a simple grill. A few people worked together quickly, and after a while, the grill was ready. We all work together: we men are in charge of the physical work, while Duoduo and Lisa are in charge of cooking.

Of course, this so-called "rice" is basically made of semi-finished products. That is, boil some water, put some noodles, and then have canned food, pickles and other things. These seemingly ordinary things, when we taste them at the moment, are incomparably delicious!

As usual, we ate and laughed. The old ghost is still everyone's pistachio, and the jokes he tells make us laugh.

I sometimes wonder, where did this grandson get so many jokes? Looking at his appearance, he has been talking for two or three years, and he doesn't have the same thing!

After a light meal, we went into our tents. Because, the climate outside is said to have fallen. I was sweating just now, but now I feel a little goosebumps from the cold.

I wrapped my coat around me to keep myself warm. But after thinking about it, I took it off again. If nothing else, Duoduo must be relatively cold at the moment. So, I got up and gave Duoduo my clothes.

Walking outside the Duoduo tent, I called softly, "Duoduo, are you sleeping?" ”

Duoduo stuck out his head and asked, "Not yet, what's the matter?" ”

"I just have an extra piece of clothing here, you can take it and wear it!" I deliberately said it "lightly" to Duoduo, and endured goosebumps all over my body.

Duoduo took the clothes and said, "Thank you!" ”

In order not to let Duoduo see my coldness, I smiled at her, said nothing, and went back to my tent. However, when I was about to enter my tent, I found a stuffed thing in front of my tent!

When I looked closely, it turned out to be a wild fox!

I let my guard down, and let out a loud scream, trying to scare it away. But the fox didn't seem to be afraid of me. On the contrary, they are still eyeing me, and it seems that the person who came is not good!

I immediately became vigilant and reached for my gun. This time I found out that I had just taken off my clothes and left my gun in the tent! (To be continued......)