i have a small world

On the plateau of South Africa, six dark whirlwinds are heading towards certain specific directions rapidly. They are far away from each other, as if they have discussed the range in advance. None of the six jet-black whirlwinds crossed the boundary. Go in a fixed direction.

These six pitch-black whirlwinds are not only very destructive, but the place they pass is a mess, with life lost, and they also make a terrifying whistling sound when they are advancing, which makes people feel chills The feeling of standing up.

These six pitch-black whirlwinds were very purposeful, they didn't hesitate at all, and went straight to the direction they believed in, and the speed was unbelievable, disappearing on the other side of the horizon in an instant, and until these black whirlwinds passed halfway Hours later, the seventh and eighth search teams of the United States arrived late.

The direction of the American search team is the same as the direction of those black whirlwinds. The gates of hell are opened for the seventh and eighth search teams of the United States!
"Commander, we are about to arrive at the location of the coordinates, please get ready, we are about to land soon."

The indicator screen in front of the driver of a CH-47 "Chinook" transport helicopter of the Seventh Search Team had a red light on, and he knew that they had reached the target location of this mission, and now only the Find the meteorite that fell here.

"Very well, you immediately use radar to scan the surrounding situation, find a good place to land, and order two 'Apache' helicopters to cover us in the air, we will go down to search for meteorites now."

The commander of the Marine Corps in this ch-47 "Chinook" transport helicopter began to issue orders. These orders were the implementation steps planned by the headquarters before the Marine Corps came out. The commander only needs to act according to the order that is.

"All the elites of the Marine Corps, we have arrived at the mission destination. I believe everyone knows what the mission is for this time. However, I want to emphasize one thing here. We must not underestimate this mission. The task of searching for meteorites is very simple, but don't forget how many people are watching these meteorites.

Against ordinary enemies, we will definitely win every battle, but this time the enemies include Chinese warrior troops.

I believe everyone knows how powerful warriors are. If you don't want to be wiped out by these warriors, then you have to get 12 points of energy. Even when you are searching for meteorites, don't let your guard down.Once you let your guard down, that's when you lose your life.

Of course, we don’t have to be afraid of the Chinese warrior troops. There will always be two 'Apache' combat helicopters guarding us above our heads. If the warriors want to make a surprise attack, ask the two above us first. Apache' attack helicopter again.

Anyway, I hope that after this mission, everyone will be able to go home happily together. The Marine Corps is invincible! "

"Marines, invincible!"

"Quick, quick, quick!..." The commander jumped out of the helicopter just after it landed on the ground, and urged his subordinates to get off the helicopter.

"All gather, report the number!"

"1, 2, 3..., (,)."

"30!" The commander announced the last number: "Very good, all of them are there, stand at attention!"

"Take a break!"

"I have repeatedly emphasized the importance of this mission, and I will emphasize it again here. Elites of the Marine Corps, the big figures in the five-star building are always paying attention to this mission. As long as a meteorite is found, Then you will be rewarded by the five-star building, and you may even get a medal.

I believe that everyone also wants to get a medal when they retire, so if you want to retire with a medal, you have to keep your eyes open this time.Jimmy, send the radiation sensor down to search for meteorites, these radiation sensors will come in handy. "

The commander's order was quickly carried out, and the American soldier named Jimmy took out ten palm-sized machines and distributed them. These machines are radiation sensors.

When the meteorite just fell on the earth, the surface of the meteorite was full of radiation caused by cosmic rays, and these radiations were constantly radiating to the surroundings. However, the half-life of the radiation caused by these cosmic rays is very short, and it will dissipate within a short time after reaching the earth. Now, it has not been an hour since these meteorites fell on the earth, and the radiation caused by cosmic rays has not been dispersed. Therefore, the radiation detector has come in handy.

"Commander, there is movement in the radiation sensor."

Within a minute, news came from a search team in the south that they had discovered radiation, and the discovery of radiation meant that they were not far from where the meteorite fell.

"Very well, I'll come over right away. The other groups will still follow the instructions just now. Maybe there will be other scattered meteorites. Anyway, within one kilometer around this coordinate, we will spread out like a carpet." search."

The commander saw that other people stopped what they were doing, and quickly opened his mouth. Now is not the time to be surprised. The radiation carried by meteorites has a time limit. God knows when these radiations will disappear. If these radiations disappear, then this Once they have a heavy workload, and it is impossible to get the award of the five-star building.

With the commander's order, other American soldiers lowered their heads again and began to search for traces of the meteorite, while the commander came to the pair of search teams that had just reported to see the situation.

"Well, have you determined the direction of the radiation source?"

"It has been determined, it is this direction. The further we go there, the stronger the radiation will be. I believe the meteorite is ahead."

"Very well, it seems that our mission this time is about to get off to a good start. Speed ​​up, let's go see where this lovely meteorite is."

Three minutes later, the search team arrived at the radiation source.

Soon, these American soldiers confirmed that this place was where the meteorite fell. Looking at the crater with a radius of ten meters on the ground, it was very certain that it was hit by a meteorite. Although it was dark, these American soldiers still recognized this place. The big pit with a radius of ten meters is the meteor crater.

Meteor craters (larger craters, also known as craters) are ring-shaped pits formed on the surface of planets, satellites, asteroids, or other celestial bodies by meteorite impacts.There is often a hill in the center of the crater. On the earth, the crater is often filled with water to form an impact lake, and there is a small island in the center of the lake.

On celestial bodies with weathering process or celestial bodies with crustal movement, old craters will gradually be obliterated.For example, on the earth, through weathering, the accumulation of wind-blown dust and sand, and magma impact craters will be covered or obliterated.

There may be other effects obliterating craters on other celestial bodies.For example, the surface of Callisto is ice, and as time goes by, the ice will slowly flow, making the craters on the surface of this satellite disappear.

There are about 150 large craters on Earth that are still recognizable, and geologists have discovered many that are no longer identifiable through the study of these craters.

Almost all planets and moons with solid surfaces have impact craters.The density of craters on some objects can be used to determine the age of the corresponding surface regions.

When they saw this crater, smiles appeared on the faces of these American soldiers. If such a large crater can be formed, then the size of this meteorite is not small.

These American soldiers ignored the hot temperature inside the crater, jumped off the crater directly, and began to search for the meteor like a carpet.

The way to distinguish meteorites from ordinary stones is also very simple. Before performing this task, these American soldiers have been told the way to distinguish meteorites from ordinary stones.

Due to the burning and abrasion of meteorites in the atmosphere, the shape of meteorites is more round without edges and corners, while ordinary stones are in the shape of edges and corners.

There are also melting pits on the surface of meteorites: the surface of meteorites is covered with pits of different sizes and depths, that is, melting pits.Many meteorites also have shallow and long air marks, which may be left by the shedding of low melting point minerals.Ordinary stones will not have such obvious characteristics.

What's more, it hasn't been long since this meteorite fell into the earth. Its surface must still have a temperature, which may be very high. And there are other rocks in this crater, where does the temperature come from, so there are several methods It is really not difficult for these American soldiers to distinguish the meteorites in this crater from ordinary stones.

Ten minutes later, the ten-meter-square meteor crater had been turned over by these American soldiers, but the meteorite had not been found, which made the commander of the search team very puzzled.

Why did this meteorite just disappear?Is it because the meteorite was completely burned when it was transferred to the crater, or because someone got there first.

For the reason above, the commander quickly died, because if the meteorite is burned out, how can there be such a large crater? If you want to form such a large crater, you can’t do it without enough volume. Yes, therefore, this conjecture can be ruled out, and there is only one possibility left, that is, someone got there first.

As soon as he thought of someone getting there first, a line of words appeared in the commander's mind: China's warrior troops.

Only those Chinese warrior troops who have mastered the mysterious power can take this meteorite away before them. If other people come here to take this meteorite, they will definitely leave some traces. Only Chinese warriors, they With light work, there is no trace left at all.

However, this is just the commander's conjecture, and it has not been confirmed. Therefore, the commander ordered his men to continue searching for traces of meteorites in the crater, and at the same time compared what happened here with his conjecture. Report to the headquarters and let the headquarters decide what they should do? (To be continued.)