The Wandering Planet

Shen Huabei led Qiao Lv into the main body of the Antarctic Garden Project. Such a huge building was built around a deep pit with a diameter of hundreds of meters. It was covered with an iron gate like a nuclear bomb silo. After evacuating the personnel, Just now, it slowly slid to the sides.

Qiao Lv stood on a small bridge with tight security measures and slowly lowered it to the bottom of the deep well. The bridge deck was made of high-strength glass, so he could clearly see the scene under his feet.

"Welcome to the entrance of the Earth Tunnel." Shen Huabei introduced to him, "Be careful not to see your feet go soft."

The scene in front of you can indeed make people with fear of heights die on the spot. The large pit with a diameter of more than 100 meters is bottomless, and there is a ring of light at intervals on the wall of the pit, which marks the existence of the deep pit in the darkness where you can't see your fingers. .

Looking down from the bridge, the countless circles of light on the wall of the pit gradually shrink until they shrink into a single spot of light, just like staring at a large target with blue light. It is completely impossible to imagine how far the bottom of the pit will extend. .

It looks like the gate of hell here, and it is also a literal bottomless pit, because this is a tunnel that runs through the earth. If you jump from the South Pole, you can come out from the North Pole on the other side. What you need to worry about falling into it is not to fall to your death, but A drastic temperature change midway,

At the same time, we must also pay attention to nutritional supplements. If you accidentally fall back and forth in the earth tunnel, it is not a joke to be starved to death on the way to jump off the building.

"Is there a 12,756-kilometer earth tunnel underneath?" Qiao Lv asked in amazement.

"It's also an earth cannon." Ding Yi added, "This is where the shells are loaded."

Faced with this bottomless pit, it will really make people instinctively fear. As Nietzsche said, when you gaze into the abyss, the abyss gazes into you.

Just looking at this abyss, one will feel as if the whole person is going to be swallowed. This is a kind of fear from the heart. Faced with something that cannot be observed in its entirety, human survival instincts will be awakened.

Qiao Lv also took a deep breath before recovering, and asked Shen Huabei: "Such a large-scale project must be very difficult."

"It's more than tricky." Shen Huabei said with a wry smile, unbearable to look back: "At the beginning, the whole project was dancing on the tip of a knife, and a screw that fell from here could cause a big explosion at the other end. Later we gave the whole project The magnetic levitation force field was added to the tunnels, and this disaster was finally avoided. However, other problems still emerged one after another, so I won’t talk too much here.”

"It's really hard work for you.

"

Among other things, just daring to enter this abyss to build an earth tunnel is already an act of courage, and it is even more difficult to be careful in this situation to avoid making small mistakes.

"Fortunately, most of the project is nearing completion, so I can finally feel a little relieved." Shen Huabei said with a sigh of relief.

Qiao Lv stared at the earth cannon that was nearly completed, and always felt that something was missing. Suddenly he realized, turned his head and asked:

"Since it's an earth cannon, what about its shells? It's impossible to use screws as weapons, right?"

Of course, this so-called screw, as part of the earth tunnel, is also a new solid material with extremely high structural strength and can withstand the high temperature of the earth's core.

It's just that since even a screw in the earth tunnel must be made of new solid materials, the shells fired as earth cannons of course need something more exaggerated.

Ding Yi smiled slightly and said, "Haha, Director Qiao Lu, you've got the point."

Shen Huabei explained: "As you can imagine, the ammunition of the earth cannon is of course a new solid material, but the density is much higher. We can't put it on the earth, otherwise the shell will sink directly into the earth." heart."

"Then where do you put it?" Qiao Li asked curiously.

Shen Huabei raised his finger towards the sky, and replied confidently: "Of course it's in space."

In order to see the truth about the materials launched by the earth cannon, Qiao Lu followed Shen Huabei and Ding Yi in the Antarctic to take the space elevator to the sky above the earth orbit, where a huge space station was floating, which was also built as part of the Antarctic Garden Project.

Qiao Lv was surprised to find that this space station is very similar to the Navigator space station in the past, that is, there is an obvious raised part at the tail of the space station, which makes the whole space station look like a huge key, pointing at the Antarctic courtyard below Engineering the Earth Tunnel Entrance to this keyhole.

He walked inside the space station with Shen Huabei and Ding Yi, and Qiao Li asked the two people in front of him in surprise:

"Could it be that this is also part of the Antarctic Garden Project?"

Shen Huabei turned his head and smiled, "That's right, this is the firing pin of the earth cannon."

"You call this thing a needle?"

Qiao Lv couldn't help but blurted out, if the firing pin of a planetary engine is as amazing as an ancient battering ram, then the entire giant space station, which is comparable in size to the navigator space station, is actually the firing pin of the earth cannon, which is even more shocking. People can't complain anymore.

"So, this is a big project." Ding Yi explained, "Our bullet is inside this firing pin."

After walking for a while, Qiao Lv and his party arrived at the central control area of ​​the space station.

Here, Qiao Lv finally got his wish and saw the shells of the Earth Cannon kept in a weightless glass cabin, surrounded by a large group of staff busy, as if they were going to accidentally break out of the window all the time.

It's just that it's different from the people around who are waiting in full battle. The things stored in the glass cabin are not scary at all, and it can even be said to be full of beauty.

It was a silver metal sphere, which looked like a drop of rounded mercury. Its surface was as smooth as a mirror, or even surpassed a mirror, and it could perfectly reflect everyone's face on it.

There is another characteristic, that is circle, reaching the ultimate circle. Just like its smooth surface, as a sphere, it is also an absolute circle. No matter how many points are randomly checked on it with optical instruments, there will be no slightest circumference error.

Just like the definition of a circle, the distance from each point to the center of the circle is equal, but when there is no error at the atomic level, the difficulty of achieving it is unimaginable!

The entire metal sphere exudes a natural artistic atmosphere, which makes it hard to believe that it is made by human technology.

"What exactly is this?"

Qiao Li took a deep breath and asked, even he didn't know that there was such a thing on the Wandering Earth.

"The final form achieved after compressing the new solid-state material to the extreme." Ding Yi replied: "We should call it - strong interaction force material."