There were Chinese workers in Britain and France, and students in Germany.

For students like Li Hua who go to Germany to study, Cheng Nuo attaches great importance to it.

In other words, for all young students who have talent, potential, and more importantly, a patriotic heart, Cheng Nuo values them from the bottom of his heart.

After the small concert was out of the limelight, Cheng Nuo did not continue to stay, declined the kindness of Planck and others, and quickly left the venue with Li Hua.

Here Li Hua was immersed in the activity just now, and some of his thoughts were still unfinished: "Professor Cheng, you blow it so well, you blow out the spirit of our Chinese, don't you know, just when you blew it, those big foreigners, their mouths are like a small scoop, where have you seen this battle."

Cheng Nuo patted the student's back and said with a smile, "You're not bad at blowing this sheng! Looks like there's some inheritance at home?"

Li Hua rubbed the back of his head, and said a little embarrassed: "What kind of inheritance, it's just that when I was a child, people did white things, and I liked to run behind my ass to beg for meat to eat, and then after a long time, I slowly understood a little bit, and I was just a layman."

Cheng Nuo picked up the handkerchief and wiped the suona several times to ensure that it was clean, and then solemnly handed it back: "It's enough to deal with this dying German Empire, as for those big noses, it's just a fun."

"That's right, I've been in Germany for so long, and I've never seen anyone blow this." Taking the suona, Li Hua nodded: "But even if you hear it, they are mentally prepared, so what? Aren't you crushed by our combination?"

Looking back at those people, Cheng Nuo couldn't help but smile: "That's right, it is estimated that this incident can make these people remember."

"But then again, how long have you been in Germany, and what subjects have you studied?" Turning his gaze, Cheng Nuo looked at the student and asked curiously, "Look at the school emblem on your schoolbag, it seems that it is a student of the University of Berlin?"

"Professor Cheng has good eyesight, I am a student at the University of Berlin, but unlike you, I came to Germany to study at my own expense." Li Hua turned over his schoolbag, pointed to the school emblem and said, "My major is automotive engineering, and I want to go back to do a career after learning a skill."

"Automotive engineering is good, at the moment our domestic market is blank, and the future development prospects are very broad." Cheng Nuo smiled and said, "By the way, where do you live? Can you show me around?"

The smile on Li Hua's face froze instantly, and he said, "Cheng ...... Professor Cheng, I'm a pig's nest, the guests have passed, and there is not even a place to plug in the feet, so I really don't want to find you like this, why don't you wait for me to go back and clean up, and I'll invite you over another day?"

Cheng Nuo's steps stopped, and he shook his head with a smile: "I'm afraid this won't work."

Li Hua was afraid that the other party would misunderstand, so he quickly explained: "No, Professor Cheng, don't misunderstand, I'm really not talking nonsense, and my house really can't be put on the table, it's not just a mess......

opened his mouth and hesitated for a long time, but in the end, Li Hua still didn't tell the follow-up reason.

"And even if you go, I don't have anything to entertain you, so if I go back and let my father know, I have to say that I don't know how to be polite and break my leg."

Cheng Nuo just mentioned it in passing, if he wants to see what the real life of students in Germany is like, he doesn't have to go over to visit.

But now that the other party is pulling more and more, the language hole is getting bigger and bigger, and he can't justify himself, and the real reason must not be as simple as a health problem.

As a result, Cheng Nuo's curiosity was really hooked: "Could it be a hygiene problem?"

"It's not."

"It's inconvenient to share a roommate?"

"Not really."

"Kanaya Zangjiao?"

"Not to mention, Professor Cheng, what are you talking about?" Li Huazhen blushed and quickly denied it.

Seeing that Cheng Nuo had the posture of breaking the casserole and asking to the end, Li Hua simply gritted his teeth and said seriously: "I'll tell you directly, the dormitory is full of radishes, stacked higher than others, even if you pass, except for me, the only one left to greet you is radish."

Sure enough, after turning around, Cheng Nuo and Li Hua came to his dormitory, and when they opened the door, they saw bags of stuffed radishes, on the floor, under the bed, and on the desk, the figure of radishes could be seen everywhere.

Looking back at Li Hua, it seemed that the whole figure looked like a radish close together.

"Xiao Li, why did you stock up on so many radishes in your house, have you finished eating? Don't let it sit for a long time, it will taste bad in your mouth."

Li Hua cried and mourned: "It's not that I want to hoard, but I have to hoard, I have been eating radishes every day recently, and I feel that I look like a radish, and my blood is green."

Cheng Nuo couldn't help but laugh and said curiously, "Tell me why you are hoarding so much, because of the European war?"

Li Hua gritted his back molars and said hatefully, "Isn't that it! Last winter, the German people were hungry and cold, there was not enough coal to heat most people, and the British blockade and poor crops meant that many people had to rely on turnips to feed their hunger."

Patting the radish on the ground, Li Hua added: "Don't look at the fact that this thing was not worth much before, the price will increase several times now, this is still the result of the government's price control, put it on the black market, then the price will be better, don't look at the lot in the house, in fact, it is easy to get hungry, not to mention, there are also other students."

From a purely geopolitical point of view, Germany is surrounded by hostile countries, and it is particularly vulnerable to blockade.

Germany's economic difficulties in World War I not only affected the direct supply of war materials, but also weakened national morale, which became an important impetus for its defeat and peace.

Looking at the radish that was already a little wilted, Cheng Nuo didn't dislike it, and put it in his mouth after washing it a little: "I haven't eaten German radish yet, don't you mind if I taste it?"

[In view of the general environment,

"You can eat with confidence, as long as you don't dislike it, this place is open to eat as you like." Li Hua not only allowed Cheng Nuo to eat, but also handed over a knife and said politely: "This skin is spicy, it tastes much better after peeling, and there is a sweet taste in your mouth."

Cheng Nuo waved his hand, quite skillfully peeling off the skin of the radish like peeling an orange: "For our rural children in the north, if cabbage is one of the few vegetables we have in winter, then radish is our fruit."

Immediately, a bite came to pass: "Oh, it's not bad! Would you like to eat some?"

As he spoke, Cheng Nuo broke the radish in his hand in half and took the initiative to hand over the part that had not been bitten.

Unexpectedly, Li Hua shook his head again and again: "Don't, I want to vomit when I look at this thing, if I don't have anything else to eat, I won't eat radishes anymore."

Cheng Nuo smiled dumbly, took back the turnip, and ate it to himself: "Let me say that Germany's current economic predicament is fundamentally constrained by the fragility of its economic system, and this fragility has an effect on the direction of the war, which is inseparable from the blockade policy implemented by Britain."

Moved over a small Mazha, Li Hua listened carefully to Cheng Nuo's "lesson", and hated that iron does not become steel: "Our ancestors are right, meat eaters are despised, even I know the truth that soldiers and horses go first before moving grain and grass, these people were still selling grain abroad before the European war, not the other way around, buying and storing grain in order to prepare for the war, which is too short-sighted."

In fact, the responsibility cannot be completely shifted to the German businessmen, and the problem of insufficient food preparation is also inseparable from the German government.

At the time, Germany's economic policy provided that grain exports could be subsidized through tariff differentials, which induced grain producers to export quickly after the harvest for cash, even to the United Kingdom.

Even though the German side has repeatedly urged the government to cancel the policy, it has had little effect.

The long-standing grain export policy of German agricultural interests has prevented Germany from making strategic grain reserves, and as a result, it has been unable to temporarily mobilize existing economic resources and has failed to prepare for a long war that consumes a large amount of resources.

In the later period, the people did not have enough food and clothing, and the international students also suffered.

Wiping the juice from his mouth, Cheng Nuo suddenly asked, "Among the many forms of warfare, siege warfare is characterized by its ability to block the flow of resources

You said that with the progress of military technology, if our country wants to blockade other countries in the future, what means will you choose to do so?"

"Me?" Li Hua pointed to himself, and after making sure that he was asking him a question, he thought seriously for a while, and then said: "The purpose of the blockade is to cut off the flow of resources to the adversary, so the blockade must strike at the trade and transportation on which the flow of resources depends, or simply prevent the trading partners of the enemy country from trading with the enemy country."

Cheng Nuo nodded: "But in this way, it is necessary to require our country to have both the military ability to destroy the opponent's lines of communication, and the political and diplomatic power to force neutral countries to reduce or stop trade with enemy countries, no matter which one, it seems that it is not easy."

Li Hua's face darkened: "If you think about it carefully, it seems that we can only be a blocked person forever!" How can there be any ability to block others? Even if international law requires a ban on the blockade of non-military goods, including food, they are doing so."

Cheng Nuo sighed: "Isn't the current Britain bypassing international law and directly blockading Germany to cause you to eat turnips, which is essentially a typical Machiavellianian value."

Machiavellianism asserts that the means can be used to achieve the end, so it has become synonymous with power and strategy.

Li Hua was unwilling, clenched his fists and hammered his thigh fiercely: "Isn't there any solution?"

Cheng Nuo raised his eyebrows: "Although we can't overcome the root cause, we can still work the surface."

Li Hua's eyes lit up, and he hurriedly asked, "What's the way, Professor Cheng, tell me quickly."

After eating the remaining radishes in two bites, Cheng Nuo smiled: "At present, Britain mainly relies on the navy to block the shipping routes, and then control the steamer and prevent it from docking in Germany. I mean, what if we can find a way to get rid of these navies?"

Li Hua hesitated, "Are you talking about developing the navy?"

Cheng Nuo shook his head: "The history of giant battleships has slowly passed, and the caliber of naval guns alone cannot determine the victory of a naval battle."

Li Hua was puzzled, "Then what should we do?"

Cheng Nuo raised his eyebrows: "Of course, it is to develop aircraft and develop the Air Force."

Now it's Li Hua's turn to be dumbfounded, although he has heard of such a thing as an airplane, but to actually contact it, it is really a big girl on a sedan chair - the first time:

"Build an airplane?"

Seeing that he was close to his goal, Cheng Nuo smiled and said, "Yes, the importance of aircraft will become more and more prominent in the development of the future era. Whether it is used to engage in civil aviation or to turn back to the military, the industry has great potential, and I recommend you to try this direction."

Li Hua was dumbfounded, and quickly explained: "Professor Cheng, you're really not kidding, although the four wheels of a car look like one more than the three wheels of an airplane, the actual difficulty of research and development is just the opposite, not to mention that I don't know anything about airplanes."

Cheng Nuo smiled and waved his hand: "At least, you have a foundation, unlike me, that is the real layman."

Although Li Hua is excited, he knows his own skills best, and this accumulation of experience is not enough for aircraft manufacturing: "No, although the method you said is good, it is not suitable for me, and I don't even know where to start dismantling the aero engine."

Cheng Nuole said, "That's not necessarily, although the engine can't, you can study something else."

For example, the engine fairing can not only reduce the drag of the aircraft, but also solve the problem of cooling difficulties of the air-cooled engine, and even design the engine with two or four rows of cylinders to create conditions for increasing power.

Another example is the exhaust gas turbocharger, which can increase the intake pressure in high-altitude conditions and improve the high-altitude performance of the engine.

Another example is the variable pitch propeller, which is used to increase the efficiency of the propeller and the output of the engine......

Every time Cheng Nuo finished saying an example, Li Hua nodded on the side, giving him a lot of confidence.

The technological progress that Cheng Nuo said was not made up by him, but several important inventions in the field of piston engines between the two world wars.

In addition to what Cheng Nuo said, there are also cooling exhaust valves, cylinder water spray and deflagration fuel, etc., these inventions have created conditions for greatly improving the performance of engines and aircraft.

The reason why Cheng Nuo wants Li Hua to stay in Germany to change his major, in addition to thinking that Li Hua is a talent that can be created, is actually part of the reason that Germany's aviation industry has developed rapidly after World War I, such as the world's first jet fighter put into use - Me262 fighter.

After the war, the United States, the Soviet Union, and France successively developed their first generation of turbojet engines by buying patents or with the help of materials and personnel obtained from Germany.

At the same time, the five or six years after the First World War were two golden periods in the history of studying in Germany.

In Berlin alone in 1924, there were nearly 1,000 Chinese students.

On the one hand, the signing of the Sino-German Agreement after the war and the strengthening of Sino-German cultural exchanges made it possible for a large number of students to study in Germany, and the two countries were completely on an equal footing, and the German government shifted the focus of its development in China to the cultural and economic fields.

Studying abroad was the main form of Sino-German educational exchanges at that time.

On the other hand, the post-war inflation in Germany was extremely severe, the value of the mark was greatly depreciated, and the various expenses of living in Germany for foreigners holding hard currencies such as the dollar were greatly reduced compared with before the war, which stimulated the flow of foreign students to Germany.

When most of the Chinese students are poor, they have to change their study countries in line with the changes in prices in various countries for the sake of livelihood.

At that time, many Chinese students studying in other countries in Europe and the United States transferred to Germany to study.

For example, Lin Yutang, whom Cheng Nuo met after going to Europe, was originally Cheng Nuo's younger brother and had been studying at Harvard University in the United States.

However, due to financial reasons, in 1920 he transferred to Germany to study at the University of Bizig, where he later obtained his doctorate.

The reason why many of our party's predecessors choose Germany as a study destination is actually due to the practical pressure of economic constraints.

In other words, in addition to taking a fancy to Germany's industry, Cheng Nuo also wants to send some good domestic student seedlings to study in Germany.

Li Hua is the candidate that Cheng Nuo is preparing to install in Germany, not only to learn advanced technology, but also to manage international students.

"Don't look at Germany, but there are still 3,000 nails in the broken ship, and there are still a lot of good things waiting for us to discover!

Li Hua, I see you very much."

"Professor Cheng, don't do this, you make me feel very pressured like this......