Escape From the Library

【Deep Starry Sky-18】

On the morning of the 11th day, everyone was woken up on time by the alarm.

A pure white nebula appeared outside the porthole, shaped like starfish scattered on the beach, exactly the same as the scene in the original data—they finally reached the destination of this mission.

Yue Xingwen came to the command room to join his teammates. Major General Karen looked serious, pointed to the nebula and said, "The β71 nebula is ahead, and there is a small planet in the place covered by the nebula. The unmanned reconnaissance plane we sent has already took images of the entire planet's surface."

With a swipe of his right hand, a huge virtual screen appeared in front of him, and the scene of the planet's surface began to play on the screen.

Major General Karen introduced in a low voice: "There are a lot of precious ores distributed on this planet. The drone has not found any signs of animal survival for the time being. You need to investigate the specific environment yourself." He looked back at Yue Xingwen , "The purpose of your trip is to collect ore samples and bring them back to the base for testing, and conduct detailed mapping of the distribution of ore veins on the entire planet. The environment on the planet is harsh, and you can ask the command for help if necessary."

Yue Xingwen nodded and said, "Understood."

At this moment, the door was pushed open, and a female adjutant with several soldiers brought over 12 backpacks filled to the brim, and said respectfully, "The supplies you ordered are ready."

Karen looked at these supplies and said, "There are water and food in the backpack, which can guarantee your survival needs for a month. I wish you all a triumphant return!"

The NPC helped prepare the supplies, and Yue Xingwen was not polite, asking his teammates to quickly take the backpack.

At 8 o'clock in the morning, the aircraft carrier parked near the β71 nebula, and six small reconnaissance aircraft took off from the aircraft carrier's apron. The 183 members of the 12 action team, divided into groups of two, quickly landed on the aircraft.

The process of landing this time was very smooth, and everyone was not scattered everywhere like before.Just 10 minutes later, the six aircraft landed steadily on the planet according to the set path.

Yue Xingwen walked out of the hatch and looked around——

As seen on the holographic screen just now, the surface of this planet is full of mountains.Unlike the lush mountains covered with green plants on the earth, the mountains here are bare, without any traces of plants, and the soil is brown-black in color, as if it had been scorched.

Xiaotu quickly reported the monitoring data: "The ambient temperature is 38 degrees Celsius, the humidity is 20%, and the oxygen content is 10%."

Hearing this, Zhuo Feng couldn't help frowning: "The oxygen content in the air on the earth is about 21%, but the oxygen content here is only 10%...Fortunately, we have Xin Yan, the source of oxygen is not a problem."

Lin Manluo comforted everyone: "Compared to the place where the escape pod landed before, the environment here is much better. The high temperature of 38 degrees and humidity of 20% are still tolerable. At least, our shoes will not be baked."

Yue Xingwen looked at the mountains not far away, and said calmly: "The task requires us to collect 100 pieces of ore, and there are 19 days before the end of the exam. Do you prefer to act together, or collect in groups?"

Ke Shaobin said: "If you are playing online games, this kind of collection task is definitely the fastest to act separately. But now, the environment on the planet is harsh, and if you encounter the monsters like before, it will be very dangerous to split up. There are more people and more strength." , I think everyone is more reliable together?"

Liu Zhaoqing agreed: "Yes, the 12 of us are together, no matter who has an accident, we can take care of each other, and I can treat your injuries. If you are in a separate team, if someone in the team I am not in is injured, it will be very troublesome."

Yue Xingwen thought so too.Since everyone thought it was better to act together, he simply said: "Then let 12 people act together, safety is more important." He paused, then turned around and asked Ke Shaobin: "Can Xiaotu detect the coordinates of the ore?"

Ke Shaobin turned on the range detection function of Xiaotu, and said: "It can be scouted, but," he pointed to the densely packed small dots on the screen: "There are too many ores around here, and Xiaotu can't accurately lock the mission target we need! It only It can detect whether the target is an animal or a non-living substance, and cannot distinguish the type and color of the ore."

Yue Xingwen was silent for a moment: "It seems that we can only find it ourselves."

Jiang Pingce made a suggestion: "This planet is not big. We use plate transposition and coordinate system to speed up the journey. In 19 days, we can investigate the entire planet. In order to avoid repeated detours, we should divide the planet into regions and do some research. Mark it well."

There is no change of day and night like that on the earth, and it is impossible to locate east, west, north, south, and it is easy to get lost while walking.Therefore, it is very necessary to mark the places you have been to so as not to repeat them back and forth.

Yue Xingwen looked at Jiang Pingce and asked, "Do you want to divide the area according to the coordinate system?"

Jiang Pingce nodded: "Since it is not easy to draw east, west, north, south, we will define this planet as a sphere with the center as the origin and divide it into four quadrants according to mathematical algorithms. The surface of the planet is four areas of equal area. We follow The speed carpet search of an area in 4 days will not miss any corner."

Ke Shaobin asked: "Divide into four regions, do you need to calculate the area of ​​the planet first?"

Jiang Pingce said: "Yes. I will first use the motion formula to accelerate around the planet and calculate the circumference and radius."

Calculating the surface area of ​​a sphere, which is the knowledge of high school mathematics, is very simple for Jiang Pingce.What Yue Xingwen was worried about was that Jiang Pingce went around the circle alone, what if he was in danger?

Aware of Yue Xingwen's worry, Jiang Pingce looked at him and said, "Don't worry, I'm flying from a high altitude alone, and the speed is very fast. Even if there are beasts on the surface of the planet, they can't hurt me."

Yue Xingwen: "What if there are flying beasts?"

Jiang Pingce looked at him helplessly, his eyes seemed to say, can you stop the crow's mouth?

Yue Xingwen coughed lightly, and said seriously: "I'm not Crow's Mouth, I just can't let you go on an adventure alone. Either you go together, or use another method to measure the distance. You go to explore the road alone, I don't agree."

Jiang Pingce was silent for a moment, then nodded simply: "Okay. Then let's go together, and I will control the collective movement of 12 people. We can also collect ore along the road and investigate the environment."

Yue Xingwen smiled and said, "This is the best."

Everyone gathered immediately, and Jiang Pingce raised his right hand, skillfully drew the coordinate system, and led the crowd into the air, flying forward in a fixed direction.

It wasn't long before they were flying over the nearby mountains.

Yue Xingwen looked down - there were a lot of stones of various shapes scattered on the mountains that meandered like rivers. These stones all exuded a reddish-brown light, which looked very similar to the precious ore they saw in the information. .

Ke Shaobin adjusted his glasses in confusion, and looked at his feet: "No way? There are more than 100 ores on this mountain range alone. The mission requires us to collect 100 ores, so let's go straight down and pick them up, or just pick them up." Is it enough?"

Xin Yan said lightly: "It must not be that simple. Many natural ores have similar colors on the surface, but the elements contained in them are fundamentally different."

Ke Shaobin was thoughtful: "You mean, among the thousands of similar-looking stones, there may only be a few of them that are really the target of our mission? The rest are all interference items?"

Xin Yan said: "Try it and you will know."

Jiang Pingce manipulated everyone to descend to the top of the mountain. Liu Zhaoqing worried that the surface of the stone was poisonous, so he quickly made some temporary gloves out of gauze and handed them to everyone.

Jiang Pingce put on his gloves, leaned over to pick up a stone, and the task progress could be displayed in the floating frame in front of him. At this time, a line of words was displayed in the floating frame: Ore collection rate 0/100.

Jiang Pingce shook his head at everyone: "This is not the mission goal."

Liu Zhaoqing also leaned over to pick up a piece, but the collection rate remained the same.

Ke Shaobin complained: "Sure enough, they are all interference items! Are we going to find them slowly one by one among thousands of stones? This is too pitiful!"

Suddenly, a flash of inspiration flashed in Zhuo Feng's mind. He stretched out his right hand to summon a magnet, enlarged the magnet to the size of a helicopter, and began to fly slowly along the mountains.

When the magnet flew at first, the ore on the ground didn't respond.

However, when the magnet flew a few meters away, two fist-sized stones were suddenly attracted to the magnet, making a crisp sound of "clang".At the same time, the task progress in the floating frame in front of everyone has finally changed - the ore collection rate is 2/100.

Yue Xingwen's eyes lit up: "You actually want to use Brother Zhuo's magnet to find the target?!"

Zhuo Feng smiled and said: "I guessed right. The mineral resources we are looking for this time should be laterite nickel ore. This kind of ore is brown in appearance and contains a lot of nickel. Nickel is a hard corrosion-resistant, Wear-resistant metal, and most importantly, it can be attracted by magnets!"

Xin Yan said: "I remember that there are iron, cobalt, nickel and other atoms in the magnet itself."

Zhuo Feng nodded: "Yes, the atoms that make up a magnet have a magnetic moment, which will generate a magnetic field and attract metals containing iron, cobalt, and nickel. Although the ores here look very similar in appearance, the ores that really contain nickel , will be attracted by the magnet, so that we can quickly screen out the mission target."

Ke Shaobin suddenly realized: "Sure enough, it is a course in the School of Physics, and it is necessary to use magnets to find the target! If we don't expect this, we will search one by one. The appearance of these stones is similar. Let alone 19 days, we will not be able to find them in 99 days." Be sure to find them all!"

Liu Zhaoqing couldn't help complaining: "If the students in the physics department didn't point out the magnet skills in the team entering this course, wouldn't it be the end of the game?"

Zhuo Feng said: "The School of Physics is already a course on the 11th floor. The team that can get here has enough points. There shouldn't be anyone so stupid that they can't use the magnet skill, right?"

Liu Zhaoqing nodded: "That's right! It's just like a roll of gauze in our medical school."

As Zhuo Feng's giant magnet flew back and forth around the mountains, the collection rate in the floating frame in front of him also increased rapidly, and finally stayed at: the ore collection rate was 10/100.

Screening targets with magnets saves them a lot of time eliminating distractions.

Yue Xingwen thought, if the process goes well, maybe they can complete the task in less than 19 days!