Escape the Library

【Deep Starry Sky-18】

On the morning of the 11th day, everyone was woken up on time by an 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 in front. There is a small planet where the nebula blocks. The unmanned reconnaissance aircraft we sent has already imaged the entire planet's surface."

He swiped lightly with his right hand, and a huge virtual screen appeared in front of him, and the scene of the surface of the planet 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. The specific environment needs to be investigated in person." 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 to 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 headquarters for help if necessary."

Yue Xingwen nodded and said, "Understood."

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

Karen looked at these supplies and said, "The backpack contains water and food, which can ensure 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, and asked his teammates to quickly take over the backpack.

At 8:00 in the morning, the aircraft carrier stopped near the β71 Nebula, and six small reconnaissance aircraft took off from the tarmac of the mothership. The 12 members of the 183 Action Group, divided into two groups, landed quickly in the aircraft.

The landing process this time was very smooth, and everyone was not scattered as before. After just 10 minutes, the six aircraft landed firmly on the planet according to the set path.

Yue Xingwen walked out of the cabin door and looked around——

As seen on the holographic screen just now, the surface of this planet is full of mountains. Unlike the lush mountains on Earth, which are full of green plants, the mountains here are bare, no trace of plants can be seen, and the soil is brown-black in color, as if it was 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 Earth is about 21%, and the oxygen content here is only 10%... Fortunately, we have Xinyan, the source of oxygen is not a problem."

Lin Manluo comforted everyone and said, "Compared with the place where the escape pod landed before, the environment here is much better. The high temperature of 38 degrees and the humidity of 20% can be tolerated. 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 until the end of the test. Do you prefer to work together or collect in groups?"

Ke Shaobin said: "If you are playing online games, this kind of collection task is definitely the fastest way to split up. But now, the environment on the planet is harsh, and if you encounter the same monsters as before, it will be very dangerous to team up. The more people, the greater the power. , I think it is more reliable for everyone to work together?"

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

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 to ask Ke Shaobin: "Can Xiaotu detect the coordinates of the ore?"

Ke Shaobin turned on the small map's range detection function and said, "It can be reconnaissance, but," he pointed to the dense dots on the screen: "There are too many ores around here, and the small map can't accurately lock the mission target we need! It only It can detect whether the target is an animal or a non-living material, and it is impossible to 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 put forward a suggestion: "This planet is not large in size. We use plate transposition and coordinate system to speed up our journey. In 19 days, we can scout the entire planet. Mark it."

There is no change of day and night like on the earth, and it is impossible to locate the east, west, north and south, and it is easy to get lost while walking. Therefore, it is very necessary to mark the places that have been visited so as not to repeat 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 and south, according to the mathematical algorithm, this planet is defined as a sphere with the center as the origin, divided into four quadrants, and the surface of the planet is four equal areas. 4 days of speed carpet search of an area, no corner will be missed."

Ke Shaobin asked: "Divided into four areas, is it necessary to calculate the area of ​​the planet first?"

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

Calculating the surface area of ​​a sphere, which is 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 encountered danger?

Aware of Yue Xingwen's concern, Jiang Pingce looked at him and said, "Don't worry, I'm flying from a high altitude by myself, very fast. Even if there are beasts on the surface of the planet, it won'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 a crow's mouth, I just can't let you take the risk 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. Let's go together then. I will control the collective movement of 12 people. We can also collect ores along the way and investigate the environment."

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

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

It didn't take long for them to fly over the nearby mountains.

Yue Xingwen looked down at the mountains that meander like a river, scattered with a large number of stones of various shapes. These stones all exude a reddish-brown light, which looks very similar to the precious ores they saw in the data. .

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

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

Ke Shaobin thought thoughtfully: "What do you mean, among these thousands of similar-looking stones, there are only a few of them that are really the target of our mission? All the others are distractions?"

Xin Yan said, "Just try it and you'll know."

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

Jiang Pingce put on gloves and leaned over to pick up a stone. The task progress can be displayed in the floating box in front of him. At this time, a line of words is displayed in the floating box: ore collection degree 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, all of them are distractions! Do we have to slowly find them one by one among thousands of stones? This is too pitiful!"

Suddenly, a light 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 mountain.

When the magnet flew at first, the ore on the ground did not respond.

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

Yue Xingwen's eyes lit up: "You actually 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, which is brown in appearance and contains a large amount 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 appearance of the ores here are very similar, the real ores containing nickel are , will be attracted by the magnet, so that we can quickly screen out the mission target."

Ke Shaobin suddenly realized: "It really is a course in the School of Physics, and it uses magnets to find targets! If we can't think of this, we will look for it piece by piece. The appearance of these stones is similar, let alone 19 days, give us 99 days. You must find them all!"

Liu Zhaoqing couldn't help but complain: "If the students in the Department of Physics did not point out the magnet skills in the team of this course, wouldn't they have to finish 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 stupid enough not to use the magnet skills, right?"

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

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

Screening targets with magnets greatly saves them the time to filter out distractions.

Yue Xingwen thought that if the process went smoothly, maybe they could complete the task in less than 19 days!