Lin Yuan thought of this and said: "Mr. Schwart, I will not give up Poland, I said in the tsarist era that I want to support Polish independence." ”

Schwarter smiled and said, "Mr. Lin Yuan, Poland has become independent with our support, and we have helped you achieve your goal, haven't we?" ”

Lin Yuan sneered and said, "Poland must become independent with the support of our China. ”

Lin Yuan's words were very resolute, there was no room for negotiation, Schwart didn't know what to say, he was silent for a minute, Schwart laughed softly: "Mr. Lin Yuan, our German Empire has made great concessions, you shouldn't be so aggressive, right?" ”

Lin Yuan said with a smile: "The wrestling of great powers is not a trivial dispute between neighbors, how can you humble me and let me say it?" ”

Schwarter smiled and said, "Mr. Lin Yuan, you don't want Beijing to be hit, do you?" ”

Lin Yuan was taken aback and asked, "Beijing has been hit?" What do you mean by that? ”

Schwarter smiled leisurely: "Our German Empire has recently developed a new type of weapon that can be directly attacked from Germany to Beijing, China, you don't want to try it, right?" ”

Lin Yuan was stunned after hearing this, and secretly thought in his heart that he could directly hit the weapon from Germany to Beijing, China? What is that? Germany is more than 8,000 kilometers away from Beijing, such a long distance, artillery must not play, Germany has a tradition of manufacturing large-caliber heavy artillery, for example, the famous "Dora cannon" in my time, but no matter how powerful the artillery is, it is impossible to fight 8,000 kilometers, right?

Lin Yuan's brows furrowed, and he asked tentatively, "What weapons do you have?" ”

Schwarter smiled: "I don't know much about these things, so let's call someone who understands these things to you, and let him tell you personally." ”

After Schwart finished speaking, he called his assistant to the front, whispered a few words, and the attendant walked out, and brought a person in after a while, Lin Yuan looked up, and saw that the young man was the one he thought was special just now.

The young man walked up to Lin Yuan and Swart, Lin Yuan asked someone to move a chair for him, the young man was a little restrained in front of Lin Yuan and Swart, looking timid, and only dared to sit on half a chair.

Lin Yuan couldn't help but laugh when he saw him like this, and said, "Young man, you can introduce yourself first." ”

The young man hurriedly stood up, Lin Yuan waved his hand, and said with a smile: "It's okay, it's okay, you sit and talk." ”

The young man smiled apologetically, sat down again, and said, "My name is Herbert, and I am a student at the Technical University of Berlin in Germany, and my teacher is Tsiolkovsky. ”

Lin Yuan was shocked when he heard this name, because Tsiolkovsky was none other than the father of rocketry in his time and one of the founders of astronautics! It was he who first expounded the basic principles of rockets and started the aerospace industry of mankind.

Lin Yuan asked, "Isn't Tsiolkovsky a Russian?" How did you get to Germany and still teach at the Technical University of Berlin in Germany? ”

The young man replied: "He was persecuted by the Tsar, so he went to Germany." ”

Lin Yuan nodded, Tsiolkovsky was engaged in rocket research, which was already an applied discipline compared to mathematics and physics, so Lin Yuan didn't get him to China.

Herbert then asked, "Mr. Lin Yuan, have you heard of my teacher?" ”

Lin Yuan thought to himself that your teacher was so famous, how could I not have heard of it, but he just said lightly: "Yes, I have heard of him, he is studying rockets, okay, let's not talk about him, tell me about your weapons." ”

Herbert's eyes showed a burst of excitement, he took out a pen and paper from his pocket, drew a ball on the paper, and said: "This is our earth, there is a layer of air outside the earth, we call it the atmosphere, now all weapons fly within the atmosphere, but our weapons can fly outside the atmosphere." ”

"After this weapon flies outside the atmosphere, it will move around the earth under the action of the earth's gravity, and we can control its trajectory and let it fall back to the earth when it flies above the enemy's head, so that we can strike at the enemy."

Herbert was writing and drawing on the paper while talking, Lin Yuan smiled secretly in his heart, and said so much, didn't he just want to say that you made a ballistic missile? However, the technical difficulty of ballistic missiles is extremely high, especially long-range missiles with a range of more than 8,000 kilometers, and with your German technical strength, you can't do it at all, and at most you understand the basic principles of ballistic missiles, but understanding the principles and being able to build them are two different things.

Lin Yuan's guess is right, Germany is indeed researching ballistic missiles, but their research is in an extremely initial stage, and missiles can hit up to 100 kilometers, and more than 100 kilometers can't even hit Russia, let alone China.

The main body of a ballistic missile is a carrier rocket, and the warhead becomes a ballistic missile, the load capacity of the carrier rocket is extremely limited, and the carrier rocket with the largest load capacity in Lin Yuan's era can only carry more than a dozen tons of items, even if these items are explosives, there is not much power, so ballistic missiles are only powerful when equipped with nuclear warheads, and the world of this era does not know about nuclear fission at all.

Lin Yuan didn't directly pierce Herbert, but smiled: "What's the name of your weapon?" ”

Herbert said proudly: "Call it a super-long cannonball!" ”

Lin Yuan nodded and asked, "How did your ultra-distant cannonball fly out of the atmosphere?" ”

Herbert immediately listed a piece of the equation on a piece of paper and said: "According to Newton's law of gravitation, as long as the velocity of a super-distant cannonball reaches ......"

Lin Yuan interrupted him and said with a smile: "You don't have to tell me this, I also understand this, let me ask you, what kind of fuel is used for your ultra-long shells?" Is it liquid hydrogen and liquid oxygen? Can you refine liquid hydrogen and liquid oxygen with sufficient purity at your industrial level? How can you control this ultra-distant shell flying outside the atmosphere? Is your electronics industry up to the mark? ”

Lin Yuan threw out a series of questions, Herbert's face was white and red for a while, because Lin Yuan's questions were beyond the scope of his knowledge, he couldn't answer, Lin Yuan smiled and said, "Your ultra-long cannonballs don't seem to be able to hit China at all, you are here to lie to me." ”

Herbert and Schwarter had a look of surprise on their faces, and Lin Yuan smiled and said, "You don't have to be surprised, your ultra-long cannonballs are not good, I'll show you ours." ”

Herbert hurriedly asked, "Does China also have weapons that can reach beyond the atmosphere?" ”