All current applied technologies are developed based on basic physical theories such as theoretical mechanics, electrodynamics, quantum mechanics, thermodynamics and statistical physics.

The grand unified theory will be the foundation for the application of technology by higher-tech civilizations, and its importance is self-evident.

At the same time as the Large Hadron Collider was being built, humanity's communication technology also made a leap forward.

Previously it was radio communication, but now quantum communication technology has been developed.

Quantum communication is achieved through the quantum entanglement effect.

The so-called quantum entanglement refers to two particles in an entangled state. If one of the particles is affected, the other particle will be immediately sensed.

The principle of quantum entanglement is also a communication technology based on the grand unified theory.

Although the grand unified theory has not yet been proven, it does not prevent Jiang Yu from using this principle.

The three principles of uncertainty, measurement collapse and non-cloning in quantum mechanics provide absolute security guarantees for communications that cannot be eavesdropped or cracked by calculations.

Quantum communication is instantaneous and absolutely secure.

No matter how far apart the two communicating parties are or how strong the interference is, it will not be affected.

As for how far the communication distance is, it cannot be verified for the time being, but scientists still call it quantum long-distance communication.

The benefits of developing quantum long-distance communication are obvious, because it prevents the enemy from depriving us of communication security and control over weapons, spacecraft and other equipment through cracking and interference.

After the quantum long-distance communication equipment was developed, experiments were conducted. At least there will be no interference or delay in the communication and control between two points in any corner of the Alpha Galaxy.

In the future, even if the distance is too far and affects communication and control, it is entirely possible to build a transfer station to extend the distance of quantum long-distance communication indefinitely.

Jiang Yu also started designing the entire Alpha Interstellar Defense Fortress with interstellar military experts.

In addition to the Blue Planet and the Moon, thousands of interstellar docks will be built on Mars, Jupiter's satellites, Saturn's satellites, and even the asteroid belt, deploying tens of thousands of interstellar spacecraft and millions of interstellar artillery batteries.

Interstellar artillery is mainly composed of giant energy cannons, laser cannons and field force bomb launchers.

More field force bomb interstellar mines disguised as asteroids or meteorites will also be deployed in the asteroid belt.

These controlled interstellar mines will not be affected when friendly spacecraft pass by.

If an enemy attacks, these interstellar mines will be detonated, causing devastating damage to the enemy.

Jiang Yu wants to turn the entire Alpha Galaxy into an impenetrable interstellar fortress, forming a firepower network that stretches from heaven to earth.

Any alien spacecraft that enters the Alpha Galaxy will be submerged in endless firepower coverage.

Not long after, humans made a major breakthrough in materials technology.

The first truly city-level spacecraft was built.

The empty mass of this city-class spacecraft reaches an astonishing five million tons.

Twenty nuclear fusion reactors and ten nuclear fusion engines were installed.

Twenty nuclear fusion reactors not only output powerful power for the nuclear fusion engine.

It will also provide energy for twenty energy cannons, ensuring that each energy cannon can fire fifty times.

It will also provide energy security for the field shield, allowing the field shield to withstand more and stronger attacks.

In Jiang Yu's plan, city-level spacecraft will become the absolute main force in interstellar wars for a long time to come.

The county-level spacecraft has changed from the main firepower output to the flanking guard of the city-level spacecraft, ensuring the safety of the city-level spacecraft.

Village-level spacecraft have been eliminated because they are too small to be equipped with energy cannons, and their functions will be replaced by township-level spacecraft.

The function of a town-level spacecraft is to serve as the mother ship of a township-level spacecraft, ensuring the endurance and firepower output of the township-level spacecraft.

Jiang Yu plans to build at least one hundred city-level spacecraft, ten thousand county-level spacecraft, and one hundred thousand township and town-level spacecraft.

According to the strength of today's spacecraft, a small fleet consisting of one city-level spacecraft, ten county-level spacecraft, and one hundred township-level spacecraft is enough to defeat the previous Crocodile Star civilization so badly that even its mother would not recognize it.

During this period, human computer technology also made great progress.

The latest photonic computer has a computing power equal to the total computing power of the entire technological race.

Photonic supercomputers will be deployed in every city-level spacecraft, ensuring that there will be no delay in commanding the entire fleet.

Under the leadership of Jiang Yu and under the tremendous pressure of possible invasion by alien civilizations at any time, the entire technological human race has exploded with incredible development potential.

One interstellar spaceship after another was built, and one interstellar artillery battery after another rose from the ground.

It is unknown how many field bomb mines have been deployed in the small strip.

The entire Alpha Galaxy is filled with a thriving scene.

It is under this situation where everyone is working hard.

15 years later, a great piece of news came.

The large particle collider that humans spent huge resources to build was finally built.

In the lunar orbit, an 8,000-kilometer pipeline was laid from section A to section B.

This length exceeds the radius of the blue planet, and two such pipelines have been built.

It is no exaggeration to say that it is the greatest miracle of civilization.

Jiang Yu plans to spend 20 years to build a large particle collider.

But it was completed in just 15 years. Isn't this a miracle?

After the two pipelines are built, they need to be connected.

Today is the day when the two tracks are connected.

In order to ensure that the connection work is foolproof, Jiang Yu came to the lunar base.

Two pipelines over 8,000 kilometers long stand in orbit around the moon.

Two such huge technological creations need to be connected end to end in space, and the error cannot exceed 0.1 meters.

Two 8,000-kilometer-long pipelines need to be tightly connected. How much precise technology is required?

This is an almost impossible task, but technological leaps in recent years ensure its success rate.

Jiang Yu took a spaceship to a joint and personally directed the miter joint work.

As expected, the pipeline connection work went very smoothly.

After the two pipelines were connected, tens of thousands of workers entered the pipeline.

Laying of lines, installation and inspection of various instruments and equipment.

Then comes the debugging of various equipment, which only takes about a year.

During this year, Jiang Yu almost lived and ate with the workers to ensure the perfection of all the processes.

Jiang Yu has poured a lot of effort into the Large Hadron Collider and will not allow any mistakes to occur.

A year passed quickly, and after all preparations were completed, Jiang Yu came to the particle collider control room.

He gave the order with great solemnity: "The first collision test of the Large Hadron Collider has begun!"