Today is the second day, and Su Mo and Wu Shanshan have come to a desert. If it goes well, you will be able to walk to the center of the desert to the sea of trees.

"If your coordinates are correct, you'll be there tomorrow."

Wu Shanshan patted her well-developed chest, "Don't worry, you can't be wrong." I've been investigating for a long time to find out, and I can't be wrong. ”

Wu Shanshan's sworn guarantee is very confident. But I did do a lot of homework, and I can basically be sure of where it is.

Su Mo nodded, "I hope so." ”

Wu Shanshan looked at the fast-flowing scenery outside the car and sighed: "Su Mo, it's my first time to come to the desert, I didn't expect the desert to be so beautiful." ”

"Every environment has its own unique beauty, even if it's a glacial polar region or a barren desert."

"Is this the mystery and power of nature?"

Wu Shanshan almost never left Chenghuang City, and Wu Haotian was afraid that he would have an accident and would not let her contact the outside world.

"This is the real world, cruel but gentle. Sometimes it is devastating, with countless deaths and injuries. But sometimes, it's also picturesque and calms the mind. Su Mo said.

Wu Shanshan thought for a moment and asked, "Su Mo, are we going to rest in the desert tonight?" ”

Su Mo nodded, "Don't be too happy, it's very cold at night in the desert." ”

"But isn't it very hot during the day? Why is it cold at night? Wu Shanshan asked puzzled.

"Haven't you studied physics?"

Wu Shanshan pouted unconvinced, "I'm a girl, how can I learn physics." ”

Su Mo patted his head and explained helplessly: "The desert area is dominated by sunny weather, with few clouds during the day, and the weakening effect of the atmosphere on solar radiation is weak, the solar radiation reaching the ground is strong, and the heat transferred from the ground to the atmosphere is high; There are no clouds at night, the atmosphere has weak inverse radiation, the atmosphere returns less heat to the ground, and the heat stored on the ground during the day is lost in large quantities, and the temperature is low. It is high during the day and low at night, so the temperature difference between day and night is large. ”

Wu Shanshan blinked her big eyes and looked at Su Mo with a confused expression, "I still don't understand." ”

"Hey." Su Mo sighed, "Let me explain it to you like this, for example, if you are wearing a cotton jacket, won't it be very cold at night?" ”

Wu Shanshan nodded vigorously, "Mmmm, how can it be cold in a padded jacket." ”

"Then I'm just going to wear a thin shirt for you now, will you be cold at night?"

"That's for sure, it's so cold at night."

"Isn't that right?"

Wu Shanshan seemed to have comprehended something incredible, "So that's what happened, I've gained knowledge." You're so smart, Sumer. ”

Are you too stupid?

"Another point is the specific heat capacity of the object. This is too profound for you, you just need to know that the temperature difference between day and night in the desert is very large. Summer added.

Wu Shanshan put her hand out of the car window, "Su Mo, it seems that the wind is blowing." ”

"The wind is blowing? What the! It's really unlucky, it's a big deal. ”

"What's wrong, what's wrong?"

Su Mo quickly turned on the steering wheel and parked the car behind several boulders. The sandstorm mostly moved from the northwest direction, and the boulder was just in the northwest direction of the off-road vehicle.

And these boulders can stand here, which means that even if the sandstorm really comes, it shouldn't be able to blow them. This kind of solid and stable boulder is the best way to keep out the wind.

"There was a sudden wind in the desert, and nine times out of ten it was a sandstorm. Encountering sandstorms can only be said to be unlucky, so let's ask for more blessings. ”

When Wu Shanshan heard the sandstorm, she was stunned, and she saw a lot of exaggerated film and television performances on TV. In her mind, sandstorms are the equivalent of the end of the world.

"Sandstorms? How can you encounter a sandstorm? ”

Su Mo turned off the off-road vehicle, spread his hands, and said: "Strong wind, strong thermal instability, and sand sources are the three important conditions for the formation of sandstorms, as the power factor and material basis respectively. However, it was very unfortunate that we caught up. ”

Sandstorm weather mainly occurs in winter and spring, which is due to the lack of precipitation in the dry area in winter and spring, the surface is abnormally dry and loose, and the wind erosion resistance is very weak.

Sure enough, the sandstorm came!

A strong wind suddenly blew on the ground, and the sand and dust on the ground were blown up by the strong wind and mixed in the air, making the air extremely turbid. Horizontal visibility drops rapidly, soon falling below a thousand meters.

The black wall of wind-blown sand moved rapidly, getting closer and closer. From a distance, the wind and sand wall is as tall as a mountain, very much like a city wall, and it is the front of the arrival of the sandstorm.

Su Mo handed the seat belt to Wu Shanshan and reminded, "Fasten the seat belt!" I can't guarantee that with the weight of this off-road vehicle, we will not be blown away by strong winds. ”

"That'...... So what if we get blown away? ”

"That's why I told you to buckle up." Su Mo leaned back in the back of his chair in the most comfortable position, "If it is really blown away by the sandstorm, then we can only fly in the sky with the car for a while." Fastening our seat belts will keep us in place in the seat without bruising. ”

"Then why don't we get out of the car? So that it won't be blown away by the wind, right? Wu Shanshan asked.

Su Mo shook his head, "If we get out of the car, we will fly by ourselves." Besides, sandstorms that can blow off-road vehicles are only a few, and they are far safer in the car than outside. ”

Wu Shanshan exhaled a long breath, "That's good." ”

"Don't rejoice too soon, even if we don't get blown away by the sandstorm, we'll be buried in the sand."

"Hey, don't you fall into the well, okay? Really annoying? ”

"I'm afraid you won't understand it all at once, so it's divided into two parts for you to understand."

"How can I be that stupid?"

Su Mo glanced at Wu Shanshan, although he didn't say it, but it was clearly written in his eyes: Aren't you stupid?

"What's that look on your face? I really regret letting you protect me, I'm going to be by you. ”

Wu Shanshan pouted, her face flushed with anger. It's like a child who has been robbed of his beloved things, and he is particularly unwilling.

"Okay, don't worry. Even if it's really buried by the wind and sand, just drive out. ”

"Really?"

"Of course it's true, lie to you that you have candy?"

The speed of the sandstorm is very fast, just a few words in time. I can now see nearly a third of it, from only a little bit of it.

The wind around me was getting stronger and stronger, the sand was flying all over the sky, and my vision was blurry, and I couldn't see anything clearly.

All Su Mo and Wu Shanshan could do was wait, waiting for the sandstorm to step past them.

This is the power of nature, a powerful force that human beings cannot resist, and they can only accept it. 10