As I walked back, I explained to Haytham what I had just learned, and the three of them couldn't understand Chinese and had been in a daze just now. I was very happy to hear that these lads were willing to help us build our house and have an antidote.

On the way back, I chatted with Wang Sihan and Liang Cheng again, the two young men were so enthusiastic and similar in age to me, we soon became very acquainted. From time to time, the green frost in my hand intentionally or unintentionally cut off the weeds and branches on the side of the road, and even the thick branches were also broken, which made Wang Sihan and Liang Cheng stunned.

Liang Cheng stared at Qingshuang several times, and finally couldn't help it, ran in front of me and said, "Brother Jingtian, can you lend Qingshuang to me?" ”

Looking at the young man's eager eyes, it seemed that if I didn't promise him, he would keep pestering me. And Wang Sihan kept looking at him and asked him not to do this, but Liang Cheng was too curious and ignored Wang Sihan's eyes.

I smiled and handed the frost over and said, "Be careful, it's sharp and heavy." ”

"Good! Good! ”

Liang Cheng was overjoyed to take it. As soon as the sword was in his hand, Liang Cheng's right arm was pulled down slightly, and Liang Cheng hurriedly made efforts to stabilize it.

"How can it be so heavy! How can it be? He muttered to himself, his eyes jumping between me and Qingshuang, dumbfounded.

"It's not ordinary steel, it's made of high-tech No. 38 Q steel, which is naturally much heavier." I had expected Liang Cheng's reaction and explained.

"What is No. 38 Q steel and is there anything special about it?" Wang Sihan asked puzzled in front of Liang Cheng.

"What do you usually learn to fly, have you studied basic physics?" I asked.

Sihan and they nodded one after another, and after receiving an affirmative answer, I continued: "No. 38 Q steel, it means that the atomic radius of this steel is 0.38 times that of iron atoms in the natural state, and the atomic radius decreases and the density naturally increases. What's more, high-performance materials can be obtained by varying the radius of the atoms. This material has been widely used in aerospace science and technology, with this material we can build engines and spaceships that travel faster than the speed of light, which is a qualitative change in physical science. In addition to No. 38 Q steel, there are also No. 68 and No. 128, whose radii are 0.68 times and 1.28 times that of the natural state, respectively. "I talked eloquently and sighed a lot. The two lads listened with great fascination, and their faces were full of admiration, as if I had discovered it.

"You should be able to calculate how much the density of No. 38 Q steel material increases!" I asked a very simple question to see their digital base.

"Of course, it should be about 18 times!" Wang Sihan immediately reported a number.

"Isn't it fast! Not bad, not bad! I couldn't help but praise it.

Wang Sihan smiled confidently and asked: "Reducing the radius of an atom in the natural state is by changing the radius of the electron's rotation around the nucleus, how is it done?" ”

I really don't know how to reduce the radius of the rotation of electrons around the nucleus, but I can't make up an answer, so I have to say truthfully: "This is too profound, I don't understand it very well, but if you go back with us, study hard and you will definitely be able to figure it out." ”

Wang Sihan was obviously dissatisfied with my answer, but he still couldn't help but stop asking, and I couldn't help but breathe a sigh of relief, otherwise if I continued to ask, the tall image I had just established in their hearts would be shattered.

"Then why is it called Q Steel!" Liang Cheng asked a very easy question.

"Guess what!" I deliberately sold it out, and I also wanted to relieve the embarrassing atmosphere that I couldn't answer just now.

Liang Cheng scratched his head, with a look of how do I know. Wang Sihan raised the corner of his eyebrows, thought for a while and said: "There are two possibilities, one is that this Q may be related to a physical principle, and the other is the code name of the scientist who discovered this principle. ”

Wang Sihan guessed well, I couldn't help but be moved, this young man is too smart.

"Yes, the great physicist's surname is Qian, and people take the first letter Q in pinyin to commemorate his great discovery."

"Oh!" The two of them suddenly realized. A pair of eyes clearly released the incomparable reverence for this physicist, compared to the eyes of a normal person compared to looking at me, but it made me much more natural, because I am an ordinary person. Liang Cheng played with it, tried its sharpness, reluctantly returned the Qingshuang to me, and continued to hurry.

I actually have a lot of questions I want to ask them, such as how they came here at that time, how they lived after they came here, it stands to reason that more than 1,000 years ago, the life expectancy of human beings should be about 160 years old, unlike today's people, who can basically live to 400 years old. I heard Wang Sihan say that Grandpa Kong is more than 200 years old, but he is still very healthy. But every time they ask a similar question, the two little guys are not clear to them, and say that they want to ask Grandpa Kong.

We crossed the hill, the shore was in front of us, and in the distance we could see several figures swaying by the treehouse. The group quickened their pace, and the boys were clearly eager to see the other guests from Earth who had come from afar, and at last they almost trotted when they reached the base.

"Captain, come quickly!"

Only about 50 meters from the treehouse, I called out to everyone about my joy. But what I saw were some of my companions clenching their weapons and looking grim. The old man was holding a scimitar to chop weeds, and the captain was holding a sharp axe, and the two of them stood guard at the intersection, waving weapons in their hands, as if they did not want to come. Hongyin and Daniel hid in the treehouse with the only two pistols they had, while the others were either holding sticks or simply a cut of branches, as if they were facing a great enemy.

I was stunned and looked at Haytham on the side, who were also looking at me in confusion. Has the base been attacked? Or something else unexpected. I looked at the old man with his eyes swept straight on Wang Sihan and Liang Cheng next to him, and then looked at Wang Sihan and their primitive clothes, and then I understood what was going on. I was afraid of an accident, so I motioned for the team not to move forward yet.

I walked to Wang Sihan's side, patted him on the shoulder, and shouted to the old man and the captain: "Don't worry, we met them from the forest, they are human beings who came here more than a thousand years ago, they are earthlings, and they are our ancestors. ”

"What!" The old man was still confused, and he exchanged views with the captain, but he didn't know if it was a little far away and didn't hear clearly or for some other reason, but the scimitar in his hand still didn't put it down.

I saw that the situation was a little embarrassing, and I saw Hongyin come down to the door, so I had an idea. I smiled embarrassedly at Wang Sihan and said, "My partners may have misunderstood, thinking that you are primitives, and the three of us are coerced by you at the beginning, afraid that you will be unfavorable to them." ”

"Then it would be better if you went over and made it clear to them." Liang Cheng asked puzzled.

"They have laser pistols in their hands, so it's not good to shoot at you if they misunderstand."

"What then!" The young man was visibly upset.

"There's a way!" I suddenly had an idea and said, "You just have to shout together: 'Sister Hongyin, I love you like a mouse loves rice.' ”

"Who is Hongyin, what does it mean that rats love rice!" Wang Sihan scratched his cheek and asked.

"It's nothing, a joke, that's Hongyin." I pointed in the direction where Hongyin was, and the young man tried to look in the direction I was pointing.

"Looks pretty good!" The young man scratched his head, and suddenly such a sentence came out.

"Can you see what she looks like?" I felt very embarrassed by Wang Sihan's words, you must know that my eyesight is good, but I can only see the length of Hongyin's hair at such a distance.

"You can see it clearly!" Wang Sihan looked at me strangely. I didn't dwell on the question anymore and got them to shout.

So the valley surrounded the loud voice of "Sister Hongyin, I love you, just like a mouse loves rice", Wang Sihan and they laughed while shouting at me, and Hayson, who couldn't understand Chinese, was still stunned.

My trick still worked, and after a while, Hongyin rushed out first, and then Lao Mai and the captain also threw their weapons and followed, and then the others also threw away their things and ran out.

As soon as I saw that the misunderstanding was cleared up, I shouted, "Let's go!" And he ran over.

The two men approached rapidly, the earth beat the drums softly at their feet, the birds from the forest cried merrily, and the mountain springs gurgled down and ran happily on the rocks.

My body collided heavily with the captain, Wang Sihan and Liang Cheng hugged Hongyin, the cheap sister, tightly, and Hongyin also hugged the two young men tightly, muttering in their mouths: "Earthlings, there are earthlings here, great!" That's great! ”

She couldn't help but shed tears. This is destined to be an encounter that will go down in history!

"Boy, after going for so long, I thought you were caught by primitive people!" The captain laughed out loud and out loud. "How can it!" I patted Qingshuang, "Can you catch me, can you catch it!" ”

Everyone laughed, and the old man also came over with a smile and said, "Tell me quickly, how did you meet them, and how did they come here?" ”

"Let's go back to the treehouse first! Just now, you showed us the ancestors that we knew that we were going to die of laughter. I joked, pulling the old man as I walked towards the treehouse.

Wang Sihan and Liang Cheng pestered Hongyin, a cheap sister, and they didn't even look at me much. It's really a guy who values his sister and doesn't care about his brother.,It seems that I won't give some color in the future.,I'm a little unhappy.。 Hongyin should like them very much, speaking Chinese that is not particularly proficient and the two of them have a sentence without a word, looking at their hands from time to time, touching their faces, really like a sister. When the group arrived at the treehouse, I asked about Mobuto's condition, only to learn that he was still unconscious. I hurriedly called Wang Sihan to ask him to take out the antidote, and as soon as Lao Mai heard that there was an antidote, he asked for two copies, one for Song Mingsheng to analyze, and one for Ferasche to send to Sijia.