There are four questions circled on the paper, and the difficulty is really greatly improved, one of which also involves the calculation of gravitation, which is the movement of three planets, seeing this type of question, Liu Lang remembered a science fiction book called "The Three-Body Problem" in his previous life, yes, this question involves the "three-body problem", the knowledge learned in this question has reached the stage of advanced physics, of course, the "three-body problem" The calculation is very complex, even if it is not easy for a physicist to really figure it out, this problem does not require an accurate answer, just calculate the range of speed changes, and even then, it is very difficult.

Liu Lang had a course in advanced physics in his freshman year, although this question was difficult, but it was not too big for him, he only took more than three minutes to get the answer, there are four ways to answer, even he used half a piece of paper to write.

Another question is about the calculation of the internal force mode of the alloy, which may be more difficult for others than the "three-body problem", but for Liu Lang, it is simple, and the mechanics of materials can be done easily.

As for the other two questions, it's just that the process is complicated, and it's nothing at all.

"Professor Lu, do you think I'm right?"

Five minutes later, Liu Lang finished writing and handed the answer to Liu Lang.

"Okay, okay, Liu Lang, you won't have to participate in the training tomorrow, it's just a tyrannical thing, I'll tell Lu Tianming in a moment and transfer you to the youth group to participate in the training......... If you come to my department to study, you will probably become a scientist like Albert Einstein in the future, Liu Lang, do you think about it?"

Although he felt that it was impossible, Lu Hua still wanted to try to dig into the corner of the mechanical department.

"Hehe, thank you Professor Lu, I still have a material class, let's go first, see you later, Professor Lu!"

After Liu Lang finished speaking, he picked up his schoolbag and went out to leave.

"What? Liu Lang's Physics Knowledge Plenum? Professor Lu, are you saying that if Liu Lang goes to participate in the junior competition, he will win the first place?"

Zhao Tianming was taken aback when he heard Professor Lu Hua's report.

"I can't guarantee the first place, but what I can guarantee is that as long as the questions in the exam belong to the category of high school knowledge, Liu Lang has no problem.

Of course, the test papers we are getting now are all from the Soviet Union and Eastern European countries, and our country's curriculum is borrowed from them, and the teaching content of the two sides at the same age is similar, but this competition is in the United States, and we don't know their teaching content, so we .........!"

Lu Hua is a physicist, everything he does and says must be proved by facts, and without the support of facts, he will not easily make assertions.

"He doesn't have a problem with high school knowledge! So he can compete at the youth level?"

Zhao Tianming asked.

"Hehe, this needs to be decided by the leaders, but in my opinion, you can try it, after all, the content of the high school level is not challenging for Liu Lang!"

Lu Hua said with a smile.

"Okay, Professor Lu, your proposal is very good, I'll ask the Education Committee for instructions!"

Zhao Tianming picked up the phone and dialed Lu Mingzhi's phone.

"What? The topic of the juvenile group is not difficult for Liu Lang at all......... Okay, okay, I'll ask the leader for instructions right away!"

Lu Mingzhi couldn't be the master, and immediately asked for instructions from a bigger leader.

Zhao Tianming and Lu Hua waited for more than an hour, and finally Lu Mingzhi gave a reply.

Liu Lang still has to participate in the competition of the junior group, but this time it is not only the physics competition, but all three aspects of mathematics, physics and chemistry, and he must ensure that all three of them get good results.

"What?"

Lu Hua was dumbfounded when he heard this.

"Alas, there is no way, Lao Lu also explained to me just now, saying that the leaders were very happy to hear the news, and they felt that Liu Lang had the best chance of winning the championship only by participating in the competition of the junior group!"

Zhao Tianming said helplessly.

"If that's the case, then why add math and chemistry, which are fundamentally different subjects?"

Lu Hua asked loudly.

"The leaders said that Liu Lang is good in physics in high school, and mathematics and chemistry are not bad, anyway, mathematics, physics and chemistry are not separated, let him participate together and win awards if he doesn't get three prizes!"

Zhao Tianming replied.

"This ...... This...... What nonsense!"

Lu Hua wanted to refute, but he really couldn't.

"Forget it, I can't take care of this matter, I'm leaving!"

Lu Hua slapped his ass and was about to leave.

"Lao Lu, don't go! This incident was caused by you, and you have to be responsible for telling Liu Lang!"

Zhao Tianming hurriedly stopped the other party, he knew that Liu Lang didn't want to participate in this competition, or he put forward a few conditions before finally agreeing, but now it's okay, from the original physics single event suddenly became mathematics, physics and chemistry triathlon, if Liu Lang knew, he wouldn't have to "go crazy" on the spot! He didn't want to touch this mold.

"I'm just a physics teacher, I'm only responsible for teaching, I don't care about other things, I want to go to you, you don't go to others, no matter who goes, I won't go anyway! I'll go first, goodbye!"

Of course, Lu Hua knew that this was causing trouble to Liu Lang, how could he say it?

Without waiting for Zhao Tianming to step forward, Lu Hua rushed out of the office in a few steps, and the speed was so fast that he couldn't tell that he was already in his sixties.

"You...... You guy, really!"

Zhao Tianming shook his head, he didn't want to go! But there was no way, the leaders had to tell Liu Lang about the things they had decided, as for whether the other party agreed or not, it didn't matter if he said it himself, if Liu Lang "turned his face", then he would tell the truth, and then talk about it then!

"Oh, let me participate in the mathematics, physics and chemistry triathlon?

Zhao Tianming went to Liu Lang's house in person, but Liu Lang did not have any dissatisfaction, which made Zhao Tianming feel at ease.

"Liu Lang, you still have to participate in the junior level, the leaders said that only the junior level can you have a greater chance of winning the championship, as for the youth level, the country doesn't care much at all, after all, at this age, our country's talents have not really grown up, and there is still a certain gap compared with the world's outstanding scientists. ”

Zhao Tianming is right, the youth section of the country is basically a student who has just graduated from university, most of them are young people in their twenties, and they have not yet learned a solid degree in their studies, how can they show themselves on the world stage? Not to mention the age group in their thirties, because they were engaged in sports, they basically didn't go to school much, and it would not be a fool to let them participate in the world competition, so the country almost gave up in the youth group, and only sent a few graduate students in their thirties to pretend.

The focus is still in the juvenile group, I originally thought that Liu Lang was not a major, and the relevant knowledge was not solid, but now I found that he is an all-round in mathematics, physics and chemistry, and he is still the youngest, in the world, I am afraid that there are no people who are about the same age as him, if he can win the award, even if it is a bronze award, it will also win a huge face for the country, in this regard, the country is not wrong, and it is very wise.

Of course, Liu Lang understood that he was also because he was not a major, and he thought that the topics of those Olympiad competitions were so difficult that he would not be able to get a good ranking if he went, and he would waste time, but Lu Hua took out the topics of the previous junior group and found that the junior group was really not difficult, physics was the same, mathematics and chemistry should be similar, anyway, he had to go to the United States, and it was the same to participate in one project and participate in two or three.

"Grandpa Zhao, don't worry, win glory for the country, I am duty-bound, three is three, it doesn't matter, but my own courses can't be delayed, and I have a lot of things recently, I want to talk about cooperation with the three factories, anyway, mathematics and chemistry are not difficult for me, this training, I will participate when I have time." ”

"You little fellow, your work is busier than that of an old man like me! But you are busy with serious things, I am just busy, okay, I agree to your request, but I also have to tell those leaders about your request, they agree or not, I can't be the master." ”

"Grandpa Zhao, you just said that if you don't meet my requirements, I will go on strike and not participate, I believe they will agree!"

Liu Lang said unceremoniously.

"Haha, your little guy's words are really hard, alas, I was very tough when I was young, but now I'm old, and I'm useless, ...... useless!"

Zhao Tianming looked at Liu Lang with emotion, as if he remembered himself when he was young, when the country was in turmoil, he was also a hot-blooded man, and he never flinched in the face of the enemy's bayonets, but now, he didn't even dare to guarantee a request from his students......

Of course, he didn't take Liu Lang's "class strike" seriously, and no one would take it seriously, at best, he just thought that he was going to play a child's temper.

"Okay, I'm leaving, you hurry up and hurry up with yours!"

Zhao Tianming saw a pile of paper in front of Liu Lang, with dense words written on it, and the title was "How to manage a factory well", obviously Liu Lang was writing something, so he didn't say anything to the other party.

"Grandpa Zhao, I'll help you!"

"No, no, although I'm old, I'm in good health, I'm going to retire next year, and I'll be fine, and I can have more time to write history......... History is good! We can take history as a mirror, let us avoid some detours, and history is good!"

Zhao Tianming's "nagging" gradually walked away, and Liu Lang looked at the other party's somewhat emaciated back, and couldn't calm down for a long time.

For example, Zhao Tianming, these great intellectuals have lived in a cowshed and been criticized and fought, and they can't imagine the sufferings they have suffered, but their loyalty to the country remains the same, this is the so-called faith, because they always firmly believe that their country will become strong, and this personal suffering is nothing in front of the country's honor and interests.

I hope that these people will live a long life and see the moment when the country rises.

Liu Lang couldn't help but pray for these people in his heart.