Live Beautification System

After dinner, Ding Yan felt a little sleepy first. Although he is smart, he is still a child after all. He was so excited today that he didn't even take a nap, and he was already very sleepy now.

Gongsun Xiao was careful, and when he saw Ding Yan's sleepy expression, he said: "Ding Mu, your Lord Yan is sleepy, why don't you rest in my room. I'll give him a new set of toiletries. Ours The apartment is relatively remote and there are no better hotels nearby.”

Ding Mu and his second daughter hadn't seen each other for a long time. There were a lot of things he wanted to talk about, which were not suitable for children. He wanted him to go to bed quickly, so he said, "Okay, I'll bother you then."

Ding Yan was very obedient, brushed his teeth and washed his face, then lay on Gongsun Xiao's bed, smelling the fragrant quilt, and fell asleep quickly.

After his son fell asleep, Ding Mu gently closed the door and chatted with his two daughters on the sofa in the living room. You had a drink and I had a drink. They drank happily.

Ding Mu specially told them the most awesome black technologies he had developed over the years, one by one, and showed off his achievements in front of his old classmates. You know, if wealth does not return home, it is like walking in brocade at night. Ding Mu also wanted to share his results. However, there are many things here that are really top secret and sensational, so he can only say the most trivial things.

"I have been developing ultra-high-speed aircraft recently. You know the triple barrier to aircraft speed, right?"

Gongsun Xiao and Xue Lingyun shook their heads together.

Gongsun Xiao said: "I don't know."

Xue Lingyun joked: "It seems that neither of us knows. We are medical students, and we know that pain, infection and blood loss are the three major difficulties in clinical operations."

Ding Mu was a little embarrassed, but still managed to say: "The three barriers to aircraft speed are the sound barrier, the heat barrier and the black barrier. These are also called the three barriers to aviation. Before me, humans had basically overcome the sound barrier and initially overcome the heat barrier. But Black barriers are always inevitable, but I solved the problem of black barriers."

"That's great. I like hearing this. Please tell me more about it."

Ding Mu said: "You should know the sound barrier. The sound barrier is a physical phenomenon. When the speed of an object is close to the speed of sound, it will gradually catch up with the sound waves it emits. The result of the superposition and accumulation of sound waves will cause the generation of shock waves, and then There is an obstacle to the acceleration of the aircraft, and this obstacle to the increase in speed due to the speed of sound is called the sound barrier. Breaking the sound barrier will produce a sonic boom."

"You have seen the old men in the country who wake up in the park in the morning and use whips. Some people can shake out sonic booms. The strong sonic boom of the aircraft not only causes damage to the surrounding area, but also causes damage to the parts of the aircraft itself that extend beyond the impact surface. Destruction. It’s still a tough one. But we’ve gotten over it long ago.”

"Oh! It's true what you said. We have been abroad for so many years, but we haven't seen that kind of old man who exercises early in the morning. He always gets on the treadmill in the 24-hour gym early in the morning."

"There are cultural differences." Ding Mu continued: "It is actually difficult to break through the heat barrier. In fact, Great China has never broken through the heat barrier before me."

"What is thermal barrier? Is it so difficult?" Gongsun Xiao asked curiously.

"To put it simply, high-temperature friction generates heat. When the friction heat generated between the aircraft shell and the air reaches a certain temperature, the aircraft body loses its strength. The aviation industry calls this high-temperature condition encountered when the aircraft flies at high speed. It is a thermal barrier. Specifically, if it exceeds 2.5 times the speed of sound, the thermal barrier must be considered. If it exceeds 3 times the speed of sound, the aluminum alloy will have no strength. Titanium alloy or high-temperature-resistant steel plates must be used. However, both of these have their own shortcomings. Titanium alloys are expensive and difficult to process, and high-temperature resistant steel plates are too heavy and have limitations.”

Xue Lingyun said: "This must not be difficult for you. Aren't you an authority in materials science?"

"Hehe." Ding Mu smiled, "You're right. The aircraft materials I researched are high temperature resistant and lightweight, allowing the aircraft to challenge the black barrier."

"What is a black barrier?" Gongsun Xiao asked, still looking like he was very curious about knowledge.

"As I just said, the friction between the aircraft and the air will generate heat. But this example is more appropriate to use a satellite return capsule. Satellite return capsules often encounter this problem. The gas in the high temperature area and the molecules of the surface material of the return capsule are decomposed and ionized. , forming a plasma zone. It wraps the return capsule like a sheath. Because plasma can absorb and reflect radio waves, it will attenuate or even interrupt the radio communication between the return capsule and the outside world. This phenomenon is called a black barrier. For For astronauts, encountering black obstacles is very dangerous. There is currently no solution on earth. But I have solved it. Not only the solution, I also have two methods. The local method is to open windows with special materials, which can form a cooling area to transmit signals. There is also a more high-end and western-style way, which is to use other communication methods. This has been successfully tested, but it is not suitable for promotion yet..."

Of course he can solve it. Sir Mathiha of Named Star is best at planet logging, and many of Ding Mu's black technologies are related to aerospace. All this information remains.

Seeing Ding Mu's eloquent words, although Xue Lingyun and Gongsun Xiao didn't understand everything, they listened with gusto and drank more and more wine. Slowly, the conversation turned to personal life.

Gongsun Xiao said: "Old classmate, I haven't seen you for so many years. You don't seem to have changed much, but you are now a father."

"How are you doing?" Ding Mu asked intentionally, "Have you not talked about love in so many years?"

Gongsun Xiao shook his head and said: "I don't have time. The pressure of studying abroad is too great. For two years, I only slept four hours a day to read all the books required by the teacher. But everyone in Xue, many people are chasing her, not just now Does anyone else send her flowers? It's just that she must have someone else in her heart. She never pretends to be so."

"Oh?" Ding Mu looked at Xue Lingyun with a meaningful look, which made her hair stand on end and couldn't help but say, "Why are you looking at me like that?"

Ding Mu's eyes were bright and interesting: "I'm very curious about the person in your heart. Is it me?"

Xue Lingyun brushed her face, and her face was covered with red clouds. Her ears were all red. This Ding Mu was too naked. Moreover, this was done in front of his best friend, Gongsun Xiao. She could feel that Gongsun Xiao also liked Ding Mu very much. When the two of them were chatting, they would often mention this character who streaked across their lives like a shooting star.

She had known for a long time that there were many women around him, and she had also known for a long time that Ding Mu's status was getting higher and higher, his achievements were getting bigger and bigger, and he was getting further and further away from her. No matter how hard I try, I may never have any interaction with him again, and I can only silently watch him shine brightly in the sky on the ground.

Unexpectedly, just today, in a foreign country overseas, this star-like legendary figure actually came to them again and returned to their lives. The two of them even ate the food he cooked with his own hands. meal. It's a pity that he already has a son. Moreover, they are all carved from the same blank and have the same temperament.

In one thought, Xue Lingyun thought a lot and couldn't help but be speechless. But Ding Mu said reluctantly: "Is it me?"

Gongsun Xiao spread his hands and said speechlessly: "Although you may be telling the truth, you are too narcissistic. Tsk, tsk, tsk, you still haven't changed after so many years."

"Hahaha." Ding Mu said with a hearty smile, "I'm just looking for the feeling I had when I was a kid. Everyone, Xue, we are all adults now. If you have something to say, say it directly. Don't hide it. Just tell me which aspect of me is most attractive." you?"

Xue Lingyun also took advantage of the alcohol, her head became hot, and she said: "Okay, I'll let you be proud once. The first time I saw you, I wanted to go to bed with you."