Deep Space Fleet

"Forget it, let me explain."

Li Zhendong turned his head, took the microphone and explained to the reporter solemnly: "What is a cosmic string? A very fine and unified unified field was born in a moment when the universe was ground breaking. It is a linear defect in phase transition!"

Many reporters immediately opened their own recording pens, pretending to be a very serious look.

"It is divided into two types in total, one is a straight string that traverses the universe, and the other is a ring string of various sizes. The collection of all strings constitutes a network full of the universe."

Theoretically, the distribution of cosmic strings in the universe is a bit like a human neural network, ranging from the Milky Way, as large as the Virgo Galaxy Cluster, the Rania Kea Super Galaxy Cluster, and even the entire observable universe.

A picture appeared on the screen, an observable universe of 96 billion light years.

This image has not undergone any artistic processing, and any light spot in it represents a galaxy. At some point, these galaxies are distributed too much like neural networks.

The reason why the universe will form a network system, rather than all the materials spread evenly, is because of the cosmic strings.

"The next step is how to advance with the cosmic strings ..."

When the cosmic strings were just born, these strings oscillated at a speed close to the speed of light, emitting huge gravitational radiation. But no matter how much energy is consumed in the form of gravitational radiation for more than 10 billion years.

But there are also a few parts where the energy has never been consumed by a clean string, for some special reasons, it is hidden in space. So not many strings are really available.

It is difficult to directly observe the existence of these strings. After all, this is a one-dimensional thing, only length, no width and height.

"... the cosmic string has a very large elasticity. If a string is tied to the earth, it can accelerate the earth to 3000Km / h in 1 second!"

Upon hearing this, a female reporter asked curiously: "Professor Li, it seems a bit strange ... Cosmic strings do not participate in electromagnetic interactions, so how should they be tied to the earth?"

"Even if it can be tied to the earth and generate such a large amount of force, won't the string of the universe break? Can't a strong interaction withstand such a force? What is it made of?"

In the eyes, everyone became the focus of everyone. Li Zhendong couldn't help but feel a little relaxed, but he still pretended to say: "I just make an analogy to let you understand the nature of it."

"As a one-dimensional thing, it does not participate in electromagnetic interactions, and it cannot be sensed even near us. Like neutrinos, it can pass through our bodies without obstacles."

"So, how do you use it to advance? It can't be the pull, the answer is ..."

"gravitational!"

"But usually, we don't seem to feel its gravity. What should we do? I just said that it is a one-dimensional topology defect, and we can take advantage of this topology defect."

"Professor Li, what is a topology defect?"

"Simply speaking, defects caused by topological effects are always defective in the homotopy sense. For example, there is a certain symmetry group in a system. After the symmetry is broken, there will be a symmetry corresponding to this broken symmetry. vacuum."

"... There is a very low-energy transition state from one vacuum to another. This situation is generally known as a soliton in science, which is a topology defect. For a simple example, the magnetic chip of a ferromagnetic system , Because both ends correspond to a good ferromagnetic phase, but the direction of m is different, it is two different vacuums ... "

Many reporters were making a noise and complaining loudly.

With so many technical terms, it is impossible to understand, and even if you understand it, it is impossible to write on the report.

Li Zhendong felt very desperate. He looked back at Zhang Yuan with a smile on his face, and he was a little skeptical about how this guy dealt with reporters.

"Everyone is restless ... In short, you can use a condensed method to reactivate the gravitational pull of the dormant cosmic strings."

"How to do it, you can refer to the gravitational shielding experiment on the earth. There is something in common ... that is, the state of gravitational equilibrium needs to be broken. Of course, it is just a small segment of the cosmic string's gravity, only a few seconds Or a few minutes. "

He drew a simple image on the screen: a spaceship was slowly moving, and a string of cosmos was ahead. The airship suddenly fired a cannonball, disturbing the dormant state of the cosmic string in front, making it tiny. The vibration of the body emits huge gravitation.

"But this short period of time is also enough. Think about it, if the spacecraft is sailing, suddenly a huge gravitational force is generated in front, will the whole spacecraft be sucked in?"

"Of course, this segment of gravity will quickly disappear again, but the kinetic energy of the spacecraft, that is, the speed, has not disappeared."

"Then we activate the strings ahead and repeat this process continuously, the speed of the spacecraft will be faster and faster!"

This is ... a new way to advance!

This time, all the reporters understood.

Gravitation and Interstellar Navigation

Letter from the Golden Sun

The Humans of Captan

Only half a day later, after this series of special reports were broadcast, it quickly caused a stir in the society. The information about the Golden Sun and the promotion of gravity have naturally become the most talked about topics.

Humans who had been a little slack off have re-emerged with greater work enthusiasm!

Similar discussions can be heard on the streets.

"Kaptan, the Golden Sun, is so far away ... in almost two directions. The cosmic string in the middle is still broken, and we shouldn't go there on purpose."

"For the first time using a cosmic string for a voyage, you should pick a closer star ... at least I think so."

"It doesn't make much sense to meet the people of the Golden Sun."

Even Kunlun Mountain has to make a small change. After all, gravity propulsion can be optimized much more than the traditional working fluid propulsion ~ www.readwn.com ~ no longer need to use the vast majority of tonnage for fuel. Therefore, some fuel warehouses in Kunlun Mountain can be modified into industrial areas, living areas, and agricultural areas.

The mass of the original fuel occupied more than 70% of the entire spacecraft, but now it only needs to occupy 20% of the mass. Even a little more aggressive, 10% is actually enough.

This is the superiority of gravity advancement!

Of course, gravitational advancement also has certain limitations. Whether it is accelerating or decelerating, it must be performed near the cosmic string. In this way, there can be a lot of stars that can go. Not every star has it. Cosmic strings are available.

And the conventional way of advancement is still indispensable. Otherwise, wouldn't the entire spaceship be able to move out of the cosmic string?

On the other hand, devices that cause gravitational fluctuations are also under urgent research.

Scientists have discovered an available cosmic string near Glize 581, which is absolutely great news!

In other words, everything is ready and everything is owed to the east wind of "Kunlun Mountain".