The portal is indeed a door, but it is a door with only door frames and no door panels.

The quaint portal has mysterious colors, totaling two meters high and three meters wide. The overall structure is quaint copper, with mysterious patterns painted on it, which is extremely magical.

Wang Xing gently activated the portal, and the portal fell to the center of the hall, and then was directly embedded into the floor of the hall.

"System, is that okay?"

Wang Xing always feels that it is a little unreal, and the layout of the portal is too simple.

"The host, the portal is actually a space node, and can be connected to another space through one space node. The host can now try it out, and the connection has been established on the academy."

"Okay, I get it."

Wang Xing walked into the portal and felt like he had passed through a half-high tunnel full of colors. There was also a sticky feeling that passed through his body. He tried hard to see everything in the space, but found that his eyes were a little sore and uncomfortable.

Suddenly, his eyes lit up and he had arrived at the gate of the college.

Looking back, there is already a slightly smaller space gate to the outside world where the college leads to.

Wang Xing nodded. The portal has both in and out, and it is indeed the same connection point as Tianxian Mountain, which can greatly facilitate students' travel in the future.

Returning to the Magic Society again, Wang Xing saw that Banion and Bellom were actually trying to use the portal.

"What's going on? Why can't we get through it?" Barnien was a little puzzled.

"This is a portal dedicated to our academy, so you naturally cannot use it." Wang Xing said lightly, "Now the Immortal Academy has been connected with the Magic Association. If there is any change here, you can call me as soon as possible. In order to prevent the other party from blocking the mobile phone signal, I will also send students to stay here for a long time."

When the two of them heard this, they were completely relieved.

However, they also knew that the Immortal Academy could reach the Magic Association at any time, and the Magic Association would be completely controlled by the Immortal Academy in the future, and it would soon become the back garden of the Immortal Academy in the West. Although the Immortal Academy did not make further moves, it was basically a foregone conclusion that the Magic Association transformed into an affiliated primary school of the Immortal Academy over time.

Chinese Academy of Sciences.

Wang Xing met Mu Liuli. Now her cultivation level has reached the seventh level of true energy, but she has not yet fallen due to scientific research.

"The 329th test failed, continue to prepare for the 330th time."

"Okay, Dr. Mu."

Mu Liuli's assistant whispered beside Mu Liuli: "Doctor, someone is looking for you."

Mu Liuli looked at the visitor's information and hurriedly left the laboratory.

In a separate research room, Mu Liuli took out some information: "Director, after my research, I found that all spirit stones should have the same shape, which is the size of this egg yolk, and appear as blue hexagonal crystals. The energy contained in the spirit stone is exactly the same, which is equivalent to the energy released by a kilogram of TNT explosion. According to speculation, it should be an ordinary object, mainly stones, and after absorbing such a portion of energy, it will be converted into spirit stones."

"Oh, in this way, the spirit stones in the world are the same. I thought there would be higher-level spirit stones."

"The energy contained in spirit stones, the shape they maintain, and the shape they are too small, just form a perfect structure, so in theory, the spirit stones are the same."

Wang Xing nodded: "The energy in the spirit stone can be easily absorbed by practitioners, but it is difficult to find spirit stones on earth. Only those small worlds can exist. What do you think is the reason?"

"The formation of spirit stones is a process of gathering and storing energy. Humans on Earth have developed rapidly and have been seeking energy from the earth. There will be no extra energy to form spirit stones. However, in the ancient times of the earth, humans had less demand for energy, so spirit stones should be formed. If they think of this, energy has formed a blockade in the depths of the sea and other places where humans have not entered. If the spirit stones inside have not dissolved and returned to nature, there should be some."

The earth is so big, it is normal to have a spirit stone, but if you really look for it, it will be more than worth the loss.

"Is there a way to detect spirit stones?"

"In principle, any substance has its own specific attributes, and it can be detected by relying on these specific attributes. However, because most spirit stones are hidden deep underground, and the underground environment is complex and there are many interferences, large-scale detection will have deviations. Of course, this is also because our technology has not been achieved. I have tried many times and made a single-term detector that can detect energy bodies containing a large amount of energy at a depth of 30 meters underground, and the spirit stone is within the detection range."

“30 meters are too little.”

"The dean said it right. 30 meters is not much, but if we have 100 detectors of this kind, we can detect energy bodies at a depth of 3,000 meters. If there are ten thousand detectors of this kind, all energy bodies within a radius of ten miles will be gone. The most important thing is not this. Based on the scientific and technological data brought back from the alien world, I developed a small engineer detection robot that mines resources, which can be perfectly equipped with this detection system."

Wang Xing was stunned, and then he was ecstatic.

"In the alien world, humans have developed other planets to a very powerful level, and the research on robots is also extremely powerful, and even biochemical humans similar to humans have appeared. I dismantled a spaceship and gained a lot. I am still slowly digesting these science and technology. The dean comes with me, let's take a look at this kind of detection robot first."

Mu Liuli is full of fanaticism about technology, which is something that no one can compare to.

Wang Xing soon saw Mu Liuli's invention, which was a silver metal drill bit that was thirty cm high, six cm long and ten cm long, and two eight cm long arms that could shrink into the body, but their feet were only six cm long, which seemed to be head-heavy and light, which was very awkward.

Wang Xing almost couldn't help laughing. This effect was so interesting.

Mu Liuli pressed a sunken button on the chest of the detection robot, and actually opened a door from the chest of the detection robot, looking inside, and there was a space the size of an adult's fist.

"If a detection robot discovers a spirit stone, it will be excavated and stored here. If it is completely filled, five spirit stones can be placed here." Mu Liuli said slowly. This is also her proud work. "The energy used by the detection robot is solar energy, full of energy, and it can shuttle about a thousand meters underground. However, because the current solar energy technology is not very mature, even if it is sunny, it will take three days to fully fill the energy."

Wang Xing was actually very satisfied when he heard this.
Chapter completed!