Before returning to the college entrance examination, I became popular in the science circle

Chapter 466 Chasing the Moon

China takes off, Shenzhou reaches the sky, traveling in space with the great desire and enthusiasm of the nation. Let’s raise a glass to the moon and drink to the sky, inspiring generations of Chinese people who dream of spaceflight.

From ancient myths and stories, the nine-day sky embraces the moon, and the Chinese flying dream has always run through the entire five thousand years of Chinese civilization.

The Dunhuang rock paintings on the Silk Road in the Western Regions give the Chinese people the best interpretation - the dream of flying. The romance of the myth has created the eternal story of Chang'e flying to the moon. Missing the fairy in the Guanghan Palace, looking at the Moon Palace in space, looking for and flying in the sky for thousands of years.

Since the founding of the People's Republic of China, domestic aerospace engineering has been pursued for a long time since the founding of the country.

It has been more than 60 years since the founding of the People's Republic of China. They have experienced many ups and downs along the way. However, from beginning to end, the dream of a rich country, a powerful country, and a flying dream... has indeed never paused, and has never been separated from the place underfoot. piece of land.

"Dongfanghong"; the "Two Bombs and One Satellite" project; the "Long March" series of carrier rockets... are all burning with enthusiasm on this fertile soil. The older generation left them and went west, Mr. Deng, Mr. Qian... but their energy will last forever with the country. The aerospace industry has not stopped at this moment, but is heading towards the vast space.

Overseas countries have already taken the lead, and their aircraft are even chasing Mars and Saturn. The country is not discouraged and is always pursuing bravely! Wu Tong had a big smile. She loved her country, her iron bones, and her majestic spirit! Pay tribute to those ancestors who have fought for and contributed to the country.

Now, she has inherited the wishes of her ancestors, and Wu Tong explained solemnly:

"At this stage, we are in charge of taking a step-by-step approach. In this silent competition, I suggest that the country can first enhance our influence in controlling the earth and moon. The first step is to try to build our own Guanghan Palace! From the control of the earth and moon to the imagination of more distant star systems and galaxies! We move forward step by step and never miss a step!

As you know, controllable fusion technology currently has the basis for commercialization, but the current fuel for controllable fusion is deuterium and tritium. We have only solved the problem of tritium self-sustainment. However, no matter how high the self-sustaining efficiency is, it will still be Inevitable losses of tritium occur.

The first generation of controllable nuclear fusion technology can only be said to be an initial success. If you want the reactor material to have lower losses and release greater energy, in the academic world, there has always been a further cognitive perspective and the best prediction, Deuterium and helium 3 are used as reactants to perform fusion reactions.

Since the fusion of D and helium 3 produces electrons instead of neutrons, helium triple fusion is also generally regarded as the most ideal fuel for second-generation fusion! "

Wu Tong quickly pulled out the scratch paper and pen and wrote down groups of data.

According to relevant data calculations, using helium 3 nuclear fusion to generate electricity, the total annual power generation across the sea only consumes 25 tons of helium 3; the total annual power generation in China in 1992 was only 8 tons of helium 3, and the world had 100 tons of helium 3 per year. enough. Calculated based on global electricity prices and space transportation costs, one ton of helium 1 is worth approximately US$3 billion, and with the development of space technology, space transportation costs will definitely decrease significantly.

Although the cost of generating electricity through the deuterium-tritium reaction is sufficiently low and clean, they are likely not to be troubled by energy crises for hundreds of years to come.

However, compared to the thermonuclear fusion device that utilizes the reaction of deuterium and tritium that they have mastered so far, using helium-3 for nuclear fusion reactions has more advantages than using tritium as fuel! First of all, the reaction produces more energy and consumes less energy. This is the most critical point! The second is that during the traditional tritium reaction process, a large number of high-energy neutrons are produced along with the generation of nuclear fusion energy, and these neutrons can cause extensive radioactive damage to the nuclear reaction device; on the contrary, if helium-3 is used as the reactant , it mainly produces high-energy protons instead of neutrons, which is more beneficial to environmental protection; third, tritium itself is radioactive, while helium-3 is not.

Of course, if helium-3 is really used as a fuel, there will be technical hurdles. The more charges the nucleus has, the greater the Coulomb repulsion, and the greater the kinetic energy required for the nucleus to approach, that is, the smaller the reaction cross-section.

According to theoretical calculations, the deuterium-tritium fusion reaction cross-section is dozens of times that of deuterium-helium 3 fusion reaction. And this means that if they want to achieve the Lawson criterion of fusion reaction, for helium fusion, this data means that they need to have materials that can withstand temperatures of billions of degrees.

With current technical means, it is obviously not possible to use helium 3 as fuel for fusion reactors. However, it all depends on people. Regarding the future layout, they must first determine their positioning. The earth's helium-3 reserves are only one ton, and the real rich resource lies in the moon they look up to, which has been passed down since ancient times and represents countless places of hope.

There are abundant helium-3 reserves there. Although the utilization may not be realized in the near future, this does not affect it. It is a strategic resource that they must plan and master in advance!

From the ancient but passionate desire of the people to love each other for thousands of years, many people of Yan and Huang have followed this desire for thousands of years.

The Weaver Girl meets the Cowherd, leaving many beautiful legends in the sky, but the symbol of the Dipper is the character of Sinan.

In this lofty country, standing on the Great Wall and looking at the horizon, and overlooking the Great Wall from the horizon are so magnificent. Look at the rising sun, covered with endless rays of light; look down at the Yangtze and Yellow Rivers, the three mountains and the five mountains, and the blue planet. China asked the sky with Shenzhou, asking about the boundless horizon; asking about the dream of flying in the world; asking about the domestic scientific dream; asking about the great rejuvenation of China!

Wu Tong's eyes were bright at this time. She had the courage to continue her ancestors' great dream of rejuvenation and pursue the space mission to the moon. She only looked at the above to see whether the manned moon landing program and the establishment of an orbital space station could be launched!

"Okay, Mr. Wu, regarding your suggestions, I will give you honest feedback to the superiors! If you don't think long-term, you will have immediate worries. Your foresight and foresight to plan the future in advance are things we must consider first!" Chu Hengyuan is very sensitive. , Wu Tong has only touched upon it briefly, but he has already realized a lot.

Although they have the first opportunity to successfully seize controllable nuclear fusion, the people in the world already know which path Mr. Wu will take to succeed. With the feasible technical route and solutions already clear, one or two at the latest Within ten years, there will be the next country to master controllable fusion technology.

This is no longer the ancient and modern times when information was blocked. No matter how good the protection is, in the information age, no technology can keep secrets forever.

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(End of this chapter)