Fan Zeng's report was soon delivered to the King of Qin. The report details the need for a national security strategy. And in particular. The specific role of military generals in the national security strategy and the reality that it is not in step with the national strategy. The emergence of this position will combine the effective and specific roles of military generals to jointly accomplish major strategic needs.

The King of Qin also understood that the Qin State was somewhat blind in foreign wars. In particular, the practice of fighting any enemy is a bit excessive. He vaguely felt that it should be controlled. Now there is such a position. King Qin was very receptive. So the king of Qin accepted such a request.

The emergence of the National Security Adviser signaled that the Qin State would set up a special foreign duty to manage foreign operations and the handling of foreign relations. The external and peripheral security strategy was formally incorporated into the mechanism of Qin's operation.

Although the state of Qin established such a special position. But it still needs a lot of technical support.

The holding of the Qin Geography Conference will bring no small contribution to the Qin State. Since the state of Qin has held various sporting events. The academic community, which is not willing to be lonely, has also begun to set up a spontaneous organization to hold various conferences and exchanges. It was against this background that the Geographical Congress was established.

With the advent of various measuring tools such as the Qin astronomical telescope, sextant, etc. It made the Qin State a great achievement in geography.

Astronomical telescopes observe the moon's orbit, and researchers confirm the idea that celestial bodies are spherical. At the same time, when measuring the meridian, the Qin State discovered the fact that the earth was also spherical. Subsequently, the trajectory motion of the sphere became a new object of study. in the process. The fact that the sun is in the center has been discovered again. Although there is some prejudice. But it has greatly pushed astronomy into a new theory of knowledge. These theories will then evolve the relationship between the Earth, the Sun and the Moon.

After proving that the Earth is spherical. The Geography Congress succeeded in measuring the length of the meridian. The data cannot be compared with the current one. Because there's a big conversion relationship between the two. Shangwen was unable to find a connection between the two. But a new unit appeared. It's called seconds.

The second zhang is actually a later section. The unit of a section is actually the unit of one second of latitude. The Qin State Geography Conference successfully calculated the unit distance between one degree, one minute, and one second of latitude. One second is 800 zhang. It is approximately 1.85 kilometers of a modern nautical mile. Shang Wen believes that there must be an error in this. In fact, there are such errors. But it's a significant step forward.

The first theodolite was made at the Geographical Assembly, and the geographical latitude and longitude lines began to be divided on the existing maps of the Qin State. For this purpose, they specially made a globe and gave it to the King of Qin. Although only known geographic information is marked on it. But this is already a great development that transcends history.

Subsequently, the geographical area was measured according to the division of latitude and longitude. Every 15 degrees is a local time period. The state of Qin was divided by the meridian where Xianyang was located as the starting meridian. To the east is the east longitude. To the west is the west longitude. Fifteen degrees for a place. That's an hour's local time difference. Since the warp distance is not measurable. There is no definite number. So it's time instead.

The congress also declared that the time of Xianyang of Qin State was the time of the unification of Qin State. The advent of the telegraph made it possible to discover great differences in geography at the same moment. Qin was still in the morning when the sun was rising. It is still night when the west enters. This made the King of Qin feel the huge difference in geography for the first time. The King of Qin agreed to this. To this end, the Geographical Assembly also established a chronological method of east plus west subtraction.

Great geographical discoveries require close calculations. Especially mathematical, geometric support. Triangulation has become commonplace. Even the children of the Qin Kingdom knew how to use their arms to estimate distances at a distance.

The Mathematics Conference was also held in Xianyang. But not many people participated. It is mainly caused by the boredom of mathematics. The entry of ordinary people is also mostly related to surveying work. They just want to learn something new.

The Pythagorean theorem was recognized at mathematical congresses and began to be used in elementary education textbooks. With the application of triangulation. The state of Qin will continue to study. And it starts to extend to trigonometric functions. this period. Qin's mathematical knowledge began to mature in the one-dimensional one-time two-dimensional mathematical knowledge. The main thing is artillery, as well as mathematical problems with the accumulation of a lot of life knowledge.

Industrial production. In particular, the bearing design requires a round shape. Bearings are not bearings in the current sense. Rather, the bearing is fixed with lubricating oil by an inlay. Synthetic liquid ammonia has not yet appeared. There is also a lack of refrigeration equipment for industrial use.

For the first time, the concept of pi was introduced at the Mathematics Congress. At the same time in the process of making circles. Someone proposed the infinite cutting circle method. This was the earliest prototype of calculus. Next, the mathematicians of the Qin State will focus on this topic. Another result is that graphs solve mathematical problems. The parabola is derived from artillery. The four-limit graph comes from stock analysis, and there is also probability. This is also brought about by speculation. Mathematics comes from life.

The results in chemistry are very good. But the differences are extremely serious. Chemistry began to break up. Because some chemists insist that they are genuine chemistry. This divergence stems from the differentiation of organic and inorganic chemistry. But the state of Qin did not have such a division. Rather, it pushes a part of chemists into the field of agricultural research.

These chemists mainly study phytochemistry. Along the way, the study of oil and coal began. They think it's in the realm of biology. They burn substances that are broken down into carbon dioxide and turn them into biochemistry. This is naturally opposed by chemists who study metallic and non-metallic conductive substances. So the two are very different. These weak scientists almost started fighting. However, the issue was put on hold. Even veteran chemists can't explain these problems. They need research to come up with an answer.

But chemistry has been a great success. First of all, the discovery of various metals made rapid progress in the metal aspect of the Qin State. For this reason, the first periodic table of chemical elements appeared. However, there are only metals, and the main reason for people is prepared according to the displacement reaction. Although there are limitations. But it's nice to recognize that.

Then there is microchemistry, quantitative chemistry is starting to be determined. And it became the most important chemical method. However, there are also places where chemistry is impossible. For example, chlorine. People are doing electrolysis experiments as a by-product. However, it was soon applied to tap water. The Qin people have abandoned well water to drink this disinfected water. Scientists have demonstrated experiments to kill a dog with chlorine gas. It is also thought to kill harmful germs in the water. Biology always summarizes a lot of things to be afraid of for people to accept.

But the problem arises. This toxic gas can kill animals as well as humans. Then can it be used as a weapon? The answer is yes. But chemistry conferences are academic exchanges. Killing is a weapon thing. Can poison gas be used to kill? Chemists don't think it's their thing. So the matter was shelved and handed over to other areas. Only the government did not know about it. Because they are busy developing things in the south.