In the blink of an eye, two years are about to pass. In forty days, he will also leave this familiar office and enter a second hibernation......

Zhang Yuan recalled that the bits and pieces of the past two years, from the beginning of the adaptation, to the later unadaptability......

He learned a lot of new knowledge, especially in mathematics, the history of new civilizations, and industry, and he is still looking forward to the future.

At present, the most cutting-edge direction of the earth's civilization is the research of space weapons, including lasers, electromagnetic cannons, and ion cannons.

Now that the existence of powerful alien civilizations has been observed, no matter how weak the human race is, it is still necessary to study these weapons. Taking one's own fate into the hands of the moral character of the aliens is an absolute fool's errand.

Needless to say, the development of condensed matter physics has made the power of lasers become larger and larger.

However, laser weapons have their own limitations.

After the laser weapon hits the target, the ultra-high temperature generated will cause the rapid plasmization of various metals, and these high-temperature plasmas can absorb a large amount of energy for the second time, preventing the laser from further destruction. So the lethality of this weapon is not strong enough.

The electromagnetic cannon is a kinetic energy killing weapon made by using electromagnetic emission technology. According to the current electromagnetic acceleration technology, it is possible to accelerate a bullet the size of a soybean to one-tenth of the speed of light.

One-tenth of the speed of light, 30,000 kilometers per second, that's a remarkable number.

Although compared to the vastness of the universe, it is still as slow as a snail......

The ion cannon is also a kinetic weapon, except that the bullets in it become charged particles such as protons, just like turning a hadron collider into a weapon.

The speed of the ion cannon can be higher, theoretically reaching more than 90% of the speed of light.

One of the branches, the Proton Cannon, has reached a relatively mature stage of research, including various materials and weapon architectures, and the Deep Space Foundation has sent some of its papers to the ship.

Zhang Yuan didn't know how the Deep Space Foundation got this kind of high-level military secret, so it was sent to the Earth Age anyway.

"Perhaps, there are some political bigwigs within the Foundation who are secretly supporting."

With his Level 16 staff clearance, he can read as many as he pleases.

In addition to the proton cannon, there is also a more advanced research direction of ion cannons, a thing called "helium hydrogen ion cannon".

Helium hydronium has the chemical formula HEH+ and is a positively charged ion.

This thing is claimed to be the strongest acid in the universe, capable of chemical reactions with almost anything, and after hitting the target, it will not only produce kinetic energy and electromagnetic killing, but also corrode surrounding materials, in short, it can be much stronger than a proton cannon.

But because of this, HEH+ cannot be prepared in condensed matter, because it will cause it to interact with anions, molecules, and atoms, so there is still a long way to go in terms of manufacturing and storage.

Call......

With a sigh of relief, Zhang Yuan felt a little excited in his heart when he put down some information.

What he likes most is big industry, big production, and he can't wait to go to the future planet immediately and engage in research in this area.

More than ten hours of self-study a day is not in vain, and it is an honor that he can understand some cutting-edge science in this new era......

"Hello, Mr. Zhang." A voice sounded in his ears, and he was replaced by a young man named Zhao Chao.

The young man had just woken up from hibernation, and with a worried look on his face, he was trying to muster up the courage to face the fact that it had happened.

Zhang Yuan sighed secretly, and just like Fang Yuhao received him at the beginning, he received the poor boy very carefully and shook hands with him.

Immediately afterward, he said the same thing: "Mr. Zhao, the psychological counseling room is over there." Perhaps, you can rest for a while and wait for your mood to recover, and then take over my work......"

"I have a couple of comedies here that I recommend to you. Including the Journey to the West series, Dragon Ball series, Pirate King series ......"

……

More than a month later.

After hand-in-hand guidance, the successor Zhao Chao has mastered all the work, and his mood has slowly stabilized.

That way, he can leave with peace of mind.

On this day, Zhang Yuan was saying his final goodbye to his good friend Lin Xuanxuan.

“…… Hibernation is such a good thing! When you wake up, you can see the latest development of human civilization again, and you can also learn new knowledge. I don't know if the helium hydrogen ion cannon can be successfully researched......"

Speaking of which, Zhang Yuan felt a slight sense of shame, because he was just studying, and did not explore nature, as if he was lazy......

"What's there to be ashamed of? It's already good to learn the most cutting-edge in two years. Lin Xuanxuan came out of the room, holding a small saucer with a few golden corn tortillas in her hand.

"It's just a small part of the cutting-edge content." Zhang Yuan said ashamedly.

Lin Xuanxuan just smiled reluctantly, not looking very happy. Still, she squeezed out a smile: "Try my newly researched pancakes!" Oven-baked! ”

After taking care of each other for such a period of time, the two have become very familiar. In addition, in such a small closed environment, it has become very difficult not to get acquainted.

This girl is very good at cooking, and all kinds of strange foods are endless, and it is a great skill to be able to cook delicious things in such a poor condition.

Lin Xuanxuan sat opposite him, watching Zhang Yuan take a small sip, and her mood was a little complicated. The hibernation batches are all planned, and under normal circumstances, the chances of the two meeting again are indeed very small when they wake up next time.

She began to try to find something to talk about: "Hmm...... What about the future of mankind, aren't you worried? Doesn't it mean that robot rearing has already been trialled in some places? ”

Zhang Yuan smiled and said, "Since what has happened, what are you worried about?" I can't help much...... Captain, they don't worry, I want to worry...... All I can do now is to donate, but I really don't have the money to donate this one. ”

Lin Xuanxuan dragged her chin with one hand and looked at him: "More than 30 billion!" It's not more than 300 yuan, why are you so generous? Why don't you donate it to me, let me also experience the feeling of being a world-class rich man, and I can raise a lot of small fresh meat! ”

Zhang Yuan glanced at her with slanted eyes, and recorded with his mobile phone: "Hello everyone, colleagues of the Deep Space Foundation. My name is Zhang Yuan, and my identity number is ...... I volunteered to transfer all my possessions on Earth to Miss Lin Xuanxuan. By the way, what is your ID number? ”

"Really give it to me...... You're so generous, do you want to take care of me! Lin Xuanxuan said happily.

……