Chapter 301

In the large conference room of glitzer 581g-1 satellite, it is just a sea of people. More and more researchers and journalists come to hear the news.

After being moved, there was a heated and exciting discussion, especially the voice of reply work in this aspect was very high.

"We can build a large-scale signaling device Let the people of the golden sun know that their efforts are not in vain, and let them know that our branch of humanity is still full of vigor and vitality. "

"I believe that as long as these news reports are published, the people are very willing to make such a choice Not very willing, but strong demand! The people are more emotional and irrational than us. "

"In fact, our scientific and Technological Development in these years is not bad. Although it is only 100 years, it is really good."

"Ladies and gentlemen, please listen to me first." Listening to all kinds of confusion, Zhang Yuan raised his hand to signal everyone to be quiet.

After so many years as a captain, there is still some dignity. Soon, the meeting room was quiet again.

Zhang Yuan said cautiously: "there is no doubt that the reply must be answered. But first of all, we need to figure out what information to send. We have made quite good progress in science and technology over the years, so we have to select some key points. If we send all the information in one go, how much data will be needed? We just can't afford that. "

"Secondly, the construction of electromagnetic wave communication device is a big project. At present, the most important part of the whole civilization is the Kunlun Mountain project. It's impossible for us to deploy the people who are building Kunlun mountain to build these large-scale communication devices... "

"So, I plan to build a communication device to send this information to the golden sun after the completion of the construction of Kunlun Mountain and before the real start of the wandering project. It should be a better choice to let them know our ambitious wandering plan and share with them the technology we got from the aliens.... "

"What do you think?"

The electromagnetic wave communication between the universe is too energy consuming. The attenuation of electromagnetic wave obeys the law of inverse square, that is, the distance is doubled and the intensity is one fourth of the original.

If the energy consumption of effectively sending a light-year message is 1, then it will cost 400 to send the message to a place 20 light years away! To send information 30 light years away, 900!

This requires more equipment and more energy. The original deep space foundation was dragged down by this kind of consumption, and the original deep space foundation only sent the signal to six light years away.

According to the distance between glitzer 581 and captan, the device needs to be at least 10 kilometers in diameter. It's not impossible to consume two months of productivity of a civilization.

So, Zhang Yuan's words are quite reasonable. It's important to send information, but first of all, you can't delay what you are doing.

"Secondly, the speed of light communication of electromagnetic wave is not enough to see in the face of huge space distance. It took more than 20 years to transmit the electromagnetic wave in the past, but it will not be a problem if it is delayed for another few years Golden sun should be able to estimate that we have only developed here for one hundred years, but according to the normal development rate, one hundred years is not enough... "

"So they won't wait blindly for our reply. Don't worry, either. "

Many fanatics calm down and agree with Zhang Yuan from the perspective of the whole civilization. After all, this is not an ordinary email. Click here and you will receive it immediately.

Next is a more important play, about the golden sun, the technological progress in the past 500 years!

All the written reports are very concise. There are a lot of data and even vacancies, which make people confused. But as long as there is a general meaning and research direction, it is enough to make people feel excited!

Soon, Zhang Yuan heard that the group of scientists behind him had begun to make a fury.

People have a comparative mind. They are estimating each other's scientific and technological strength through these data. We all eat the old books of the earth's civilization, many things are half the weight, but the papers really sent are quite innovative, including materials science, physics, mathematics, biology and so on.

One of the most important papers is a study of supergravity and cosmic strings. A new propulsion method of spaceship is contained in this paper!

"Use the cosmic string to trigger gravitational waves and push forward!"

Normally, after the big bang, all matter will be evenly distributed in the universe, but if the matter is evenly distributed, it will be difficult to form real stars, galaxies, and galaxy clusters, which is inconsistent with reality.

So scientists introduced a concept called "cosmic string.".

Cosmic string, a hypothetical space-time that may exist in theory. This is a special kind of "matter". As a one-dimensional topological defect, it can be said to be a very high density energy line. It is very thin, with a theoretical diameter of only 10 ^ - 29 cm, which is 10 times the radius of hydrogen nucleus, and has a huge gravity.What do you mean?

Take water freezing as an analogy. If water freezes quickly, there will always be some cracks or bubbles in the ice, which is not so perfect. The cosmic string is a topological defect naturally born in space after the big bang, similar to a crack in ice.

Because it does not interact with normal materials, it is difficult to detect it by conventional means. So, there is only one macroscopic force related to the cosmic string - gravity.

Things related to gravity become very complex, especially this kind of material only exists in the micro environment, but the force caused by it is macro. We should know that quantum mechanics and relativity are not completely unified!

A physics doctor sitting in the back has already started to shout wildly: "the best theory at present is called super gravity theory!"

"So, what is the theory of supergravity?"

Heard someone talking, a group of reporters like to see the flesh and bones of the dog, rushed up. Today's news is too big, they have been able to anticipate the public sensation!

For journalists, how can they miss the big news that caused a sensation?

But because I couldn't understand these papers, I was so anxious that I kept asking questions.

“…… In the theory of supergravity, it is assumed that there is a Fermi property in space-time. After introducing the anti commutation number, the real number and the anti commutation number are used to describe the Fermi property of space-time

"Doctor, can you make it clear?"

"Well, general relativity regards gravitational interaction as the bending of matter to space-time, while basic particle theory regards interaction as the interaction of matter to quantum field. If, in a certain force, the description of elementary particle quantum becomes a part of the description of space-time geometry... "

"Through a way to rejuvenate the cosmic string Oh, it can not be said to be vitality, that is, the birth of a small-scale shock, it can show its own huge gravity, which can absorb the spacecraft! You know, the cosmic string itself has a lot of energy... "

Li Zhendong quickly patted him: "you see, so many beautiful reporters behind are confused by you. You just need to say what the new way of promotion is. Don't make it so complicated. "

"Yes, doctor, say the point, say the point."

When the young doctor saw so many people watching his crazy speech, he blushed and could not speak.

In particular, some lovely female journalists are staring at him and looking at him curiously

What's the matter? He just discussed with his colleagues and didn't speak to reporters at all.

And then there was another pile of microphones.