Chapter 308

In the large conference room of Gliese 581g and satellite 1, it is a sea of people and bustling. More and more researchers and journalists came to hear the news.

After moving, there was a heated and excited discussion, especially about the reply work in this area.

A female congressman blushed and shouted, "we can build a large signal transmission device... Let the people of the golden sun know that their strength is not in vain, and let them know that our branch of mankind is still full of vitality 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! People are more emotional and irrational than us... "

"Our scientific and Technological Development in recent years is actually quite good. Although it takes only a hundred years, it is really good."

"Everybody, everybody, 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 captain, there is still dignity. Soon, the meeting room was quiet again.

Zhang Yuan said cautiously, "there is no doubt that you must reply to your letter. But first of all, we need to find out what information to send. Our scientific and technological progress over the years is quite good, so we must pick some key points. If we keep trying, how much data will we need? We simply can't afford this consumption. "

"The second is about the construction of electromagnetic wave communication devices, which is a big project. At present, the most important thing in the whole civilization is the Kunlun Mountain project. It is impossible for us to transfer the manpower for the construction of Kunlun mountain to build these large communication devices... "

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

"What do you think?"

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

If the energy consumed by effectively sending information for one light-year is 1, then sending the information to a place 20 light-years away will cost 400! Send the information to a place 30 light-years away, you have to 900!

This requires more huge equipment and more energy. The original deep space foundation was dragged down by this consumption, and the original deep space foundation only sent signals six light-years away.

According to the distance between Gliese 581 and Kaptan, the device needs to be at least 10 kilometers in diameter. It is not impossible to consume the productivity of a civilization for two months.

Therefore, Zhang Yuan's words are quite reasonable. Sending information is important, but first of all, you can't delay what you're doing.

"Secondly, the speed of light communication of electromagnetic waves is not enough in the face of huge space distance. In the past, it took more than 20 years to transmit. It won't be a problem to delay for a few more years... The golden sun should be able to estimate that we have only developed here for 100 years. According to the conventional development speed, 100 years is not enough..."

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

Many fanatics also calmed down quietly and agreed 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 the more important play, about the golden sun, the scientific and technological progress in the past 500 years!

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

Soon, Zhang Yuan heard that the group of scientists behind him had begun to stir up fanatically.

People have a comparative mind. They are assessing each other's scientific and technological strength through these materials. Everyone eats the old capital of earth civilization. Many things are half 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 on hypergravity and cosmic strings. A new propulsion mode of spacecraft is contained in this paper!

"Use cosmic strings to trigger gravitational fluctuations and promote!"

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

Therefore, scientists introduced a concept called "cosmic string".

Cosmic string, a hypothetical theoretically possible space-time. This is a special "matter". As a one-dimensional topological defect, it can be said to be a very high-density energy line. It is very thin. Its theoretical diameter is only 10 ^ - 29 cm, which is equivalent to 10 ^ - 17 times the radius of hydrogen nucleus. It has huge gravity.

What do you mean?

Take water freezing as an analogy. If water freezes rapidly, 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 substances, it is difficult to detect it by conventional means. Therefore, there is only one macroscopic force related to cosmic strings - gravity.

Things related to gravity become very complex. In particular, this material only exists in the micro environment, but the force caused is macro. You know, quantum mechanics and relativity have not been completely unified!

A doctor of physics sitting in the back has begun to shout enthusiastically: "the best theory at present is called hypergravity theory!"

"So, what is the theory of hypergravity?"

Hearing someone talking, a group of reporters rushed up as if they had seen a bad dog with meat and bones. Today's news is too big, too big. They can already expect the sensation of the people!

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

But because I couldn't understand these papers, I scratched my head and ears and kept asking questions.

"... in the theory of hypergravity, it is assumed that space-time has a Fermi property. After the introduction of anti commutation, we use real numbers and anti commutation to describe this Fermi 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 effect of matter on quantum field. If in a certain force, the description of elementary particle quantum becomes a part of the description of space-time geometry... "

"In a way, let the cosmic string regain its vitality... Oh, it can't be said to be vitality, that is, the birth of a small-scale shock, it can show its own huge gravity, which can suck the spacecraft! You know, the cosmic string itself has a lot of energy... "

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

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

Seeing so many people watching his crazy speech, the young doctor blushed and couldn't 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 peers and didn't speak to reporters at all.

Then another pile of microphones came.