The dinner was very lively, and many of Li Hu and Li Quan's villagers also came. Wang Xiaopang, a foodie, learned to be honest this time, didn't look for food everywhere, and always stayed by his mother's side.

Li Na and Shangguan Yuyan, they also accompanied their parents, recounting what had happened in the past few years, and they were shocked when they listened.

Wang Ling, Wang Ying and Wang Jun, they had no relatives, so they sat with Lin Yifan. As for Tanas, her mother also came here.

Chen Xing, who has been working silently behind the scenes, also followed Lin Yifan back to Earth this time. When he saw his father, he couldn't say a word, just kept crying.

"Don't cry! A man bleeds without tears, and he cries his nose when he is so big! ”

Chen Yaohua said very sternly.

"Hmm!"

Chen Xing nodded.

"How are these years? Did you hold Lin Yifan back? ”

Chen Yaohua asked.

"Dad! Don't worry, although I can't help Lin Yifan fight, I'm not idle, I've been helping in the logistics department! ”

Chen Xing hurriedly explained.

"That's good, your mission this time is very important, you must do your best to help Lin Yifan, this is not just helping him, but helping all weak civilizations!"

Chen Yaohua said very seriously.

"Hmm!"

Chen Xing nodded heavily.

"Huh! Professor Chen, Chen Xing has made a lot of efforts in the past few years, and many mechanical problems have been solved by him. ”

Lin Yifan smiled and said.

"Don't praise him, or he'll be proud!"

Chen Yaohua said.

"Hahaha!"

Chen Yaohua's words made everyone laugh.

Several young people toasted the elders one after another, and finally called Lu Hao and Li Tianao to this table, and drank happily together.

Everyone was in a very good mood at the dinner, and everyone drank until dawn. Even the old generals and old scientists, they all raised their glasses and drank bitterly.

Chen Yaohua and his old buddies drank at least two bottles of high liquor. Professor Chen Yaohua is mainly too happy, his son has made a difference over the years and inherited his major.

Now Chen Xing and Wang Ling are the two of them, and they are in charge of the battle armor. On the basis of the crystal stone warframe technology, they put forward many valuable suggestions to make the warframe more practical.

Although the technology mastered by Queen Ulantis is very advanced, the armor she made has not had a chance to be used in actual combat, and the technology in the crystal stone is basically theoretical, at most it has only been experimented in a simulation trainer.

Lin Yifan is very optimistic about Wang Ling and Chen Xing, and when Tice analyzes the crystal stone technology, he will let the two of them help on the side.

In addition, talking about Tanas's mother, after a perfect evolution, her mother is now very healthy, and her life expectancy has been greatly improved.

In fact, not only her mother, but also those top scientists and some important personnel have all accepted the perfect evolution, otherwise those old scientists would not dare to drink so much high-grade liquor.

At present, the federation is implementing a longevity plan, and the people are also using super gene drugs in batches.

The population of the earth seems to be large, but compared with the big civilizations in the interstellar world, this population is not as large as that of a small colony star.

If a civilization wants to develop and grow, it must first have a certain population base. But the short lifespan of earthlings is a big problem, and even today, the maximum age can only live to 200 years.

After a perfect evolution, the age is doubled. Now those old antique scientists are excited to add a few hundred years.

For these old antique scientists, they are not afraid of death. It's just that they still have a lot of research projects that have not been completed, and none of them are giving up.

Doubling their lifespan has completely left them behind. Many of the old antiques volunteered to return to the Academy of Science and Technology to continue their unfinished projects.

Four hundred years old already sounds pretty good. But when compared to those aliens, it is really negligible.

Not to mention aliens, some developed civilizations, their average age is two thousand years old. Compared to the four hundred years old of earthlings, it is really nothing.

But this time Lin Yifan came back and solved the problem. Obtained the Life Stone, which completely solved the problem of short lifespan of humanoids.

The Biotechnology contained in the Life Stone can increase the lifespan of human beings to tens of thousands of years. However, the extension of life is not something that can be done with life potion.

Life elixirs can improve the genetic structure of the human body, so that cells can maintain their youthful vitality forever. But there is also a premise, that is, a reasonable schedule and diet.

If the scientific and technological level of agriculture and animal husbandry is not improved, the long-term use of low-grade food will also reduce the life expectancy of human beings who have used life medicine, and eventually they will not be able to escape the end of early death.

Therefore, if you want to solve the problem fundamentally, you need to improve it in an all-round way. Agriculture, animal husbandry, and other industries related to human life all need to be upgraded by one or even several grades.

Lin Yifan regards the earth as his second home, and he is not stingy and directly contributes the cutting-edge science and technology he has mastered to the Academy of Science and Technology.

When those old antiques and a group of top scientists saw these technologies, they were all shocked and speechless.

For these old antiques, it is like opening a door to the unknown. The technology contained in the crystal stone was something they could not have imagined.

Lin Yifan contributed top technology to the Federation, but there was also a condition. Those who master these technologies must be people in the science and technology institutes, and the people of the alliance can enjoy the benefits brought by high technology, but they cannot be popularized at present.

The high-level of the Federation understood Lin Yifan's purpose very well, he was afraid that after it was popularized, it would be easy to be obtained by the alien powers.

For the security of these state-of-the-art technologies, the Federation has also set up a special department. This department is dedicated to the protection of scientists from the Academy of Science and Technology and the Academy of Science and Technology, who are all elites selected from various ministries.

In addition, anyone who enters the Institute of Science and Technology to work must move to the Institute of Science and Technology. The federation has also built several high-end residential areas for this purpose, which are specially used by these scientists.

With the technology brought by Lin Yifan, the top level of the federation made a major decision. Comprehensively improve the scientific and technological level of the Federation, and begin to upgrade military facilities in batches.

The first to enjoy the upgrade are the Falcon Task Force and the Kamikaze Task Force. All of their armor has been upgraded to level three, and their simulation trainers have also been upgraded by a few notches.

Sea Soul, as Lin Yifan's main battleship. It has also been adopted by the Federation, and now all ministries of logistics and spaceports are working hard to build this kind of warship.

As for the Dawn, the Federation did not abandon it. Although the battleship needs to be operated by a real person, the advantages of this battleship are still great.

On the basis of the original Aurora, Tis has increased its core power, defense, mobility, and attack power.

The Dawning and the Sea Soul Battleship were combined to form the main force of the Federation's current long-range attack force. In addition to this, new drone carriers and destroyers, are also under construction.

The old Destroyer began to be fully upgraded, and the logistics mothership was also towed back to the spaceport, ready to upgrade to the version mastered by Lin Yifan.

Lin Yifan not only wants to protect the alliance, but also his parents. Sooner or later, he will have to leave, only when the Federation is strong, he has no worries, otherwise he will not be able to leave with peace of mind.

His mother had almost left him this time, and he couldn't let that happen. He wants to use half a year to raise the military and scientific and technological level of the federation to the third level of science and technology.

It has to be said that the population base is an important condition for development, and the population of more than 10 billion has made the development of the federation very rapid.

The same technology is not developing as fast as it is here. This also made Lin Yifan more sure of his idea and continued to increase the population base of the Blue Wing Star.

In the future, Lin Yifan will also build starships and large flagships. Fighting those hegemonic forces also requires a population base, otherwise it will not be able to compete with the hegemonic forces at all.

Any top force, their population base is in the trillions. And Lin Yifan's population in the Blue Wing Star Base is only 10 million, and the comparison between the 10 billion on the earth and the big forces is also negligible.

Lin Yifan plans that in the next five years, he will increase the population of the Blue Wing Star Base to 100 billion. During these five years, he would search for his people and take them all to live on the Blue Wing.