Time flies quickly, in a blink of an eye, the semi-finals of the Xinghai Cup have begun, this time the semi-finals are different from the preliminaries, the semi-finals have a total of 20,000 people, only 200 are screened to enter the semi-finals, and then, the final finalists are determined, that is, the participants in the finals, there are a total of 50 people.

"Liu Qi, come on, except for you, who is in the imperial capital competition area, we are all in other competition areas, come on!" Li Ziyue said that this competition is divided into 20 divisions according to the ranking, and there are 1,000 people in one competition area on average, so Liu Qi can only separate from Li Ziyue and others and go to the imperial capital competition area alone.

-- Dividing line --

The supersonic train is very convenient, and Liu Qi soon came to the imperial capital, as the capital of "Shenzhou", there is a super scenery rarely seen elsewhere - a giant canopy. This is a castrated version of the planetary shield technology used during wandering at that time, and although the core technology cannot be deciphered, it is almost the same in strength.

"Please go to the No. 2 exit platform for the "Xinghai Cup" Starship Design Competition, where the reception staff will wait. "The announcement is played on a loop every few minutes on the radio, and it can be said that this contest is really the attention of the public.

"Okay, welcome our students to the Imperial City, this semi-final is mainly divided into two stages, the first stage is the answering session, everyone needs to complete a test paper." If you can't escape, the competition must be a roll.

"Now, let's go to Capital TV first, we will broadcast this competition live and in real time, you don't have to be nervous, your time will not be less, and there will be experts to explain the test papers synchronously, so in order to avoid cheating, please turn in all your electronic devices temporarily." The teacher held a box and waited for the students to hand over their phones or something.

Such a scene is taking place simultaneously around the world.

"Okay, then please show the admission ticket and take your seat. Your information has been bound to the seat, don't sit wrong, otherwise when the time comes, your results will be someone else's wedding dress. The teacher said, leading the students into a huge super venue, at this time, there are a total of 4 rows, a total of 1,000 seats, after the number is completed, the exam begins.

At the same time, the TV station followed up the live broadcast throughout the whole process.

"You can see that sitting in the first row of the center is the top ten players in the preliminary round of this competition, they are all working hard, according to the experts of the Central Design Bureau, the difficulty of this competition, has reached the highest ever, it can be said that it is completely in line with the practical application, below, we will hand over the picture to the commentary seat." The hostess said, and the screen switched to the legendary comment seat.

"Okay, thousands of students gathered, and the competition questions became popular. In the wind and rain, in the festival, the sky is waiting for you. I am Zhu Quan, a supporter, and welcome to the "Xinghai Cup" Starship Design Competition. The male host sat in his seat and said with a smile.

"Next, we have invited Mr. Li Hongru, an expert from the Central Design Bureau and the designer of many super warships in my country, to show us the test papers." The host said, nodding to an old man beside him.

"Thank you, host." The old man nodded and said, "We have put the studio on the screen for the test papers of this competition, so let's take a look at the students' answers first." ”

Real-time statistics, a question only has 10 minutes to answer, and it can be submitted after answering, which is the answer form of this competition.

"Okay, the results have come out, I believe this question should be regarded as a score question for students, you can see, at present, no one has made mistakes, and the answer to this question is C." Li Hongru said, "As for why, please listen to my slow analysis." ”

Soon, Li Hongru was talking, and the official statistics were statistical, and the game soon reached the second half.

"As you can see, the speed of the students' answers has slowed down." Zhu Quan said, "Obviously, due to the increase in difficulty, it has also brought a lot of trouble to the students on the scene, right? ”

"Yes, our competition this time is completely close to reality, there is no pure theory, it can be said to change the traditional examination form." Li Hongru said with a smile, "Moreover, the most important thing is that many of the topics this time can only be understood by senior or even doctoral students, but now the first, Liu Qi is a freshman, which can be said to surprise us very much." ”

"Yes, to be able to beat the crowd and become the first, this classmate Liu Qi must not be simple." Zhu Quan said.

In the examination room, unlike other students' scratching of their ears and cheeks, Liu Qi was completely leisurely.

"Simple."

"Send the questions."

"A simple trigonometry plus calculus, send a score problem."

"I'll go, how did I take out all the two vectors, there's something!"

"What the hell, the numbers are all together? That's a fart! Liu Qi's pen turned and fell on the screen, then he quickly picked it up, looked around, and found that no one had found it, so he breathed a sigh of relief and continued to answer.

"Liu Qi's answering speed is very fast, almost half of the 10 minutes are idle, it seems that there are indeed a lot of folk masters!" Zhu Quan sighed.

"Yes, we were really surprised to see this student's test paper." Li Hongru said, "His paper can be said to be perfect and distressing, at a glance, you can know that he has done almost all the test questions on the market, and he even found some formulas that we have not found." ”

"This classmate Liu Qi is a malleable talent!" Li Hongru said.

"Okay, so let's get to the finale." The moderator said.

"Okay." Li Hongru nodded, "We gave 30 minutes for the finale question this time, but I estimate that no one should be able to answer it." ”

"The finale of this time is an extremely subtle topic of the year, and if you are used to doing ideal experiments, it is absolutely impossible." Li Hongru said.

Then, a design that is so complicated that it blows up appears on the screen.

"This is the design of a starship in the Wandering Era, theoretically speaking, the energy threshold of this starship can reach more than 2000 shures, but when it is actually put into use, its energy efficiency is far lower than the theoretical value, host, guess what the reason is." Li Hongru asked.

"I don't know." Zhu Quan smiled, "Let's take a look at the answers of our classmates." ”

"I'll go, what the hell is this, this is a starship of the old era, Nima has such a complicated line, I'm going to faint!" Liu Qi looked at the lines that went around and around the picture, and only felt that there was one head and two big.

"Below the theoretical threshold, this wire, connected here, this one connected here, etc., the wires used on the starship at that time were all copper wires!" Liu Qi suddenly remembered something.

"The total length of the ship's wires is 2,000 kilometers, and the resistance is definitely very large, is this the reason?" Liu Qi pondered, "No, the designers at that time would never ignore this problem!" ”

"It's a problem with the reactor!" Liu Qi was taken aback, "This kind of trial-type antimatter furnace, the supply of antimatter is unstable at all, the wire is unevenly electrified, and then the local temperature is different, that's right, that's it, and then the most important thing is that his antimatter annihilation coefficient is too small, and the energy output is unstable!" ”

Liu Qi remembered the time when he was dragged by Mo Qinghan to study in the quantum sea, and this content was also a key point.

The formula for the energy generated by antimatter annihilation is: E=m*ac (annihilation coefficient)

Once the annihilation coefficient is low, the annihilation process will be unstable, resulting in intermittent energy output, and it is impossible to make the output energy reach the theoretical value.