Outside, Li Kongrong met with international students and others, and on the small balcony outside the living room, Zhi Bingyuan was discussing the research and development of liquid floating gyroscopes with Lin Shige. Unlike the first generation www.biquge.info of mechanical gyroscopes, liquid float gyroscopes use liquid buoyancy to reduce the friction of the gyro motor when rotating at high speed, thereby improving accuracy and reducing the drift angle.

Although it is simple, but the liquid floating gyroscope is not so simple, first of all, there needs to be a suitable liquid, its density, viscosity, specific heat, conductivity, chemical stability and other extremely high requirements. Solve the floating, the second is the thermostatic device, the gyro motor should work under the constant temperature of one tenth of the degree, which should require a double-layer thermostatic device, that is, the outer layer to maintain a constant temperature of about one degree, the inner layer to maintain a constant temperature of about one-tenth of a degree, and finally to have a high-precision gyro motor and high-precision bearings. The entire gyroscope must achieve a drift angle of less than 0.1 degree in order to achieve tactical accuracy, and if it is raised to below 0.001, it can achieve strategic accuracy.

The world's first liquid float gyroscope was born in 1942 at the Massachusetts Institute of Technology, developed by Dr. Draper, the purpose is not to navigate, but to install on the gun to improve its shooting accuracy, and so on the German V2 missile on the inertial platform came out, this gyroscope was improved to tactical accuracy, in the fifties increased astronomical star navigation to achieve strategic accuracy, equipped with all missiles of the US military.

In addition to the simple principle of the liquid-floating gyroscope, what Li Kongrong knows is the inertial navigation platform composed of a combination of gyroscopes -- it is composed of two gyroscopes and an accelerometer, one gyroscope stabilizes the missile's course and roll, and the other gyroscope controls and stabilizes the missile's pitch angle, which makes the pitch angle deflect according to a predetermined time program, thereby controlling the direction of thrust. The electrolytic integral accelerometer on the missile will calculate the angle of the missile, and when the missile deflects to a predetermined pitch angle and the velocity reaches a predetermined value, the electrolytic integral accelerometer will issue a command to shut down the engine, and the missile will begin to dive towards the target.

This is the inertial platform device on the V2 missile, and its accuracy depends on two instruments: a gyroscope that controls the course and pitch angle, and an electrolytic integral accelerometer. If the drift angle of the gyroscope is too large, there will be an angular deviation during the voyage, and this deviation is only a few centimeters in the laboratory, but when the missile flies several hundred kilometers, the actual deviation will reach several kilometers; The electrolytic integral accelerometer is actually a simple mechanical device using the principle of suffocation pendulum, and gravity is a given parameter value, but the gravity value in different regions of the earth has different differences, so there are some errors in nature. The gravitational error is not a problem to be solved by the current inertial platform, because it is negligible for the time being compared to gyroscopes with an error of up to one percent (error/distance).

Even if you know the principle of a thing, it is very difficult to do, and now Lin Shimo has been stopped on the first step of the float for half a year, he can't find a suitable float to make a gyroscope, and he also lacks a gyro motor with sufficient accuracy, so at the beginning of the report, he felt a little ashamed, because the current work has only begun.

"So...... Now you're experimenting with brown sugar water? Although there is a difference of nearly ten years between the graduation times, Zhi Bingyuan and Lin Shimo are both Jiaotong University, and the two alumni are not strangers.

"Yes. For the time being, I am simulating experiments with brown sugar water, and it is too difficult to find a suitable float, although the density of brown sugar water is not high, but the viscosity is more appropriate. I mainly want to understand the principle of liquid float gyroscope first, and at the same time experiment to find a better float. Lin Shimo was embarrassed when he talked about brown sugar water, and the people in the school's instrument laboratory were almost driven crazy by him, but he had drunk brown sugar water when he was a child, and he could think of only a few suitable floats with a density greater than water.

"How's it going? Is it possible to significantly improve accuracy by floating? Zhi Bingyuan is not interested in brown sugar water, he also thinks that this is something that is easy to obtain, and there is nothing wrong with verifying the principle for the time being.

"From a theoretical point of view, it is indeed more accurate than a mechanical gyroscope, but to achieve it, it must spend energy to do experiments, and the material is very important." Lin Shimo sighed with emotion. MIT's instrument laboratory is the research and development of various precision instruments, research equipment is quite complete, because of this, he was able to verify the principle of liquid float gyroscope within half a year, of course, there is also the help of his mentor Dr. Draper, he is also fascinated by this brown sugar water gyroscope.

"That's it......" Lynser stopped talking, but finally he said, "My mentor, Dr. Draper, has been very helpful in the experiment, and he is already planning to help me apply for a patent, so what should I do about this?" ”

"The liquid float gyroscope cannot be patented for the time being, this is a military product, if it is applied for other countries, it will be imitated, and once it is imitated, if it is a hostile country, it will be a disaster for us and our allies." Zhi Bingyuan said solemnly, "You can tell him that after this new gyroscope is finalized, it can equip the Chinese army and the American army, except for these two countries, any other country must be kept secret, and the consequences after leaking it are unimaginable." ”

Zhi Bingyuan nodded while saying Lin Shimo, not to mention the mysteries of the company's final use of gyroscopes, that is, the use of a single gyroscope is also extremely extensive, not to mention the navigation of airplanes and ships, just the use of the shooting sight is very amazing. For example, naval guns have long been equipped with gyroscopic stabilization devices, and there are also gyroscopes on anti-aircraft guns, and higher precision gyroscopes will bring higher hit rates.

"Is he Jewish?" Zhi Bingyuan suddenly asked about Dr. Draper's background. He had already met the law firm that Li Kongrong had helped the company find, one of the six largest law firms in the United States, with excellent services and low prices, all thanks to the help of the Jews.

"No, he's said to be a native of the country." Lin Shimo thought for a moment before he said, he really didn't care much about the race of his mentor.

"How's the talk?" After Lin Shimo finished reporting his work, Li Kongrong and Zhou Maobai also finished talking with international students, and the next thing is to leave a day for them to consider, and the international students who are willing to join the company at this time tomorrow will come for an interview. It is said that it is an interview, but in fact, all of them are admitted, as long as the major is right.

"It's almost over." Zhi Bingyuan looked at Li Kongrong and Zhou Maobai, and he handed over Lin Shimo's report. "Shimo has made a liquid float gyroscope for verification in the laboratory, which is very large, but the principle has been completely figured out, and now it is necessary to improve it."

Li Kongrong looked through Lin Shimo's report, and the photo attached to it showed that the gyroscope was indeed very large and weighed more than 100 kilograms, which obviously could not be loaded on a missile.

"By the way, his mentor, Mr. Draper, advised him to apply for a patent and prepared some materials for him...... Zhi Bingyuan added.

"Can't apply for a patent!" Li Kongrong put down the report, "Once the application Axis powers see it, they will put this gyroscope into practice, and we will be in trouble with Britain, France, and the Soviet Union, and the United States will also suffer if it joins the war in the future, you have to make this clear to your mentor." Are your mentors on China's side? Is he Jewish? ”

"He was not Jewish, and he was extremely sympathetic to our country being invaded by Japan." Although there was no military training, Lin Shimo still unconsciously straightened his chest in the face of Li Kongrong, and his words became louder.

"That's going to be easy. In the past, you were alone in the United States, and many things were difficult to handle, but now New China Defense will set up a subsidiary in the United States, and many things will be easy to handle. Although we don't have much money, we still have to pay a certain fee to those people in the laboratory, to your mentor, Dr. Draper, and the Americans pay attention to equivalent exchange, so we will exchange at equal value, and we can't be too stingy.

In addition, after the establishment of the company, a precision navigation research laboratory will be established, and you will be in charge of this laboratory. Don't worry if you don't finish your Ph.D., as long as you can do a good job in the lab, I'm sure MIT will take the initiative to send you the Ph.D. cap......"

"Colonel, Dr. Draper has asked me to write my doctoral dissertation, I ...... I'm not going to be out of business. Lin Shimo said with a smile, he got his master's degree last year, and after only one semester, his supervisor allowed him to write a thesis, which is an extremely rare thing in the whole MIT, and many people will not say that you can write a thesis after three or four years of study.

"If you don't have any worries." Li Kongrong nodded, between his degree and career, he was worried that international students wanted both and delayed the progress of research and development. "Your job is extremely crucial, the gyroscope is equivalent to the head of the weapon, the head is not good, no matter how strong the physique is, it is useless. The jet engine that Mr. Mober is responsible for is constantly improving, but no matter how much it is changed, without high-precision gyroscope navigation, it is in vain. ”

"Brother Shimo, what the colonel said is completely reasonable, whether the weapon can be useful or not depends on your research progress, there is no scope, and the gun is in vain." Zhou Maobai was extremely polite to Lin Shimo, calling him a brother, and let Lin Shimo wave his hand again and again.

"Colonel, Mr. Zhi, Mr. Zhou, can I know what kind of weapon this is? If it's just a shooting sight, maybe ......" Linser has been working on a gyroscope, but can't imagine what kind of weapon it is, after all, if it was only for naval guns or anti-aircraft guns, he thought that a modified mechanical gyroscope would be enough.

Lin Shimo finished asking. Zhi Bingyuan and Zhou Maobai both subconsciously glanced at Li Kongrong, and then Zhi Bingyuan said, "Shimo, this issue is too relevant to tell you for the time being......

"It doesn't matter if you tell him." Li Kongrong suddenly interjected. "He's also the director of the navigation lab."

"Hehe......" Li Kongrong laughed as soon as he spoke, and after the three of them laughed, Li Kongrong said again: "But you can't be like this today." Seeing Lin Shimo nodding again and again, Li Kongrong said again: "The navy is researching a weapon that can fly automatically, and the engine and structure of the weapon are not a problem, and now it is almost a gyroscope that can be accurately navigated." If the gyroscope can reduce the drift angle to between one degree and one to 0.1 degree, and the error of flying 500 kilometers is only about 0.5 kilometers, then it has practicality and can produce this weapon in large quantities.

Imagine that the Japanese headquarters, barracks, arsenals, and arsenals were silent in the middle of the night, and the whistling sound suddenly fell from the sky, and several tons of explosives fell on these targets together. ”

Li Kongrong heuristically described the attack effect of ground-to-surface missiles, including Zhi Bingyuan, who was extremely moved. "There are many ways to blow up important targets in the Japanese army, but it is very difficult to hit them accurately and at the same time at a low cost. What you are responsible for is how to accurately hit Japanese targets, and Brother Mao Bo is responsible for how to manufacture this kind of missiles reliably, in large quantities and at low cost, after installing your gyroscopes, the cost of each missile can be less than 10,000 US dollars, then we will produce 10,000 missiles and send them to the Japanese, not only to fight our invading Japanese army, but also to load them on submarines to fight in Tokyo. ”

Lin Shimo and a few people were excited to hear this, and Li Kongrong was also excited when he said it, he stood up and said: "10,000 US dollars is the price of 300 rounds of large-caliber cannons, but these shells can only hit the forward positions of the Japanese army, and they will kill and injure some soldiers and low-ranking officers.

If the accuracy of your gyroscope can be higher, it is not impossible to make a missile with a range of 1,000 kilometers or more, in that case, we can launch missiles directly from Ningbo or Moganshan and directly hit the Japanese mainland. ”

"Missile ......" Lin Shimo read this new term, although it was unfamiliar, but he remembered it after listening to it once.

"Yes, it's a missile!" Li Kongrong looked at him and nodded. "Bombs with autopilots." After that, he looked at Zhi Bingyuan and Zhou Maobai again, "More and more accurate, more and more dexterous, and more and more like a person, this is the future of weapon development." In the end, the new and Chinese companies will have to move back to Asia, and we can't fight European and American companies in terms of capital, and in terms of state support, it can't be compared with European and American companies. Our customers will be sub-developed countries, such as Thailand, Iran, Finland, Brazil, which have poor economies and are in dire need of high-tech weapons. It does not mean that these countries can only use bad weapons if they have no money, but the developed countries of Europe and the United States can use good weapons, and technological breakthroughs and sophistication can make up for the difference in performance to a large extent.

The weapon of criticism cannot replace the criticism of weapons, and material force can only be destroyed by material force. Isn't the reason why the Japanese were able to invade us and slaughter our people because they had more shells and better weapons? In that case, let's let them be baptized by missiles and blow him up with their broken islands. it! ”

Lee Kong-young's agitation eventually turned into anger at the Japanese, who had already decided not to reveal the atomic bomb to the Americans. For Japan, he is to land in Tokyo Bay and occupy all of Japan, and the time for the victory of the War of Resistance against Japanese Aggression will not be postponed, and he will find a way to snatch out the time to capture the Japanese mainland! (To be continued.) )