Now the Gan family and the Shi family are once again trapped in the situation where the ancient masters calculated that the earth is a ball, but there is no way to explain how humans can survive on the sphere and how to ensure that the sphere will not fall them. Get down! After all, some of this group of people had crossed the equator and been to the Southern Hemisphere last time, so they naturally understood that there was no such thing as being thrown away. So the current situation is that this group of people are racking their brains to think about what is going on. It is thanks to this, otherwise some conflicts will definitely break out between the Gan family and the Shi family, but now this situation is completely meaningless. Situation, bringing everyone together will not solve any problem. At most, the Gan family can feel at ease - it turns out that the Shi family has no clues. We, the Gan family, need to invest heavily in this area. This is a great opportunity for us to surpass the Shi family and establish the first family in astronomy and calendar. The Gan family Everyone, please use your brain to think! Of course, the Shi family felt a little relieved after seeing the situation of the Gan family - it turned out that the Gan family had no clues. When it was time for our Shi family to find a way to spend resources vigorously, this was God's gift to our Shi family to surpass the Gan family. , it¡¯s a great opportunity to establish the first family in the astronomical calendar. All the old and young in the Shi family should mobilize for me! Driven by this mode of thinking, the two families who have been fighting for almost a thousand years, well, these two families were still the same family a thousand years ago. Anyway, the two families who started fighting after they separated and changed their surnames, when they saw each other After the state, everyone has an additional intelligence-enhancing buff. However, even after adding this, both sides are still confused, and even a little confused and want to explode. At most, the leaders of the two families feel guilty, but on the surface, they maintain that our X family will win the crown sooner or later, so get out of here. look. "But after all, after fighting for so many years, who doesn't know who is who?" He held his breath. After a while, the old men of the two families could no longer maintain their previous momentum, because they really couldn't do it. "What the hell is going on." The master of the Gan family stroked his beard. From time to time, a few strands would be broken by him, but he didn't know anything about it. "Why didn't we drop it?" The old man of the Shi family also looked annoyed now. According to the shape of this ball, the terrain of the Central Plains should have collapsed from north to south. "Is it because of attraction?" a young man whispered. "Hey, this makes some sense." Both the Shi family and the Gan family agreed. They were most afraid of not having an answer at all. There was a plausible direction that would be easy to study, but they were afraid of having no direction. "Shi Tao, get up and talk, tell me what you think." The old man of the Shi family directly called his name, and his momentum was completely different from before in an instant, which showed that our Shi family had the courage to be one step ahead. "Now in this situation, we have calculated that the thing under our feet is a ball. Moreover, we have measured it several times. In fact, if the change on the sphere from Moling to Chang'an is really in a downward direction, then we should have done it long ago. Go down." Shi Tao quickly stood up and explained. Because the Central Plains is very wide, and the two families are still far apart. By the way, they are very far from north to south, and from east to west. As a pure ball, the distance between the two families on the ball is enough to appear very far. The degree of curvature changes. Therefore, if we infer from this aspect, if they did not fall, there must be an external force. Then the question now becomes how the external force came. "Well, it makes sense." The old man of the Shi family touched his chin, feeling very proud, and then gave a look to his arch-enemy, the old man of the Gan family. The two families not only fight among themselves, but also like to drag their own offspring into fights. They are all-round. of fighting. The old man of the Gan family felt a tightness in his chest and turned to give his junior a look. Some people stood up on the spot. This was related to the face of their Molinggan family. There is no reason not to fight back after being provoked by the Shi family, so a few young people with immature ideas stood up on the spot. Our Gan family is not a vegetarian either! "The problem of spherical surface change is actually only one aspect. In fact, it can be seen from the dust and various things we throw away. In fact, the direction of force on these things is actually perpendicular to the earth, and the spherical surface is perpendicular to the intersection line of the earth. " A big mathematician from the Gan family stood up on the spot. People who do astronomy don't understand mathematics. Do you think you are joking? "Based on the trajectories of some of the things we threw, we can see that the direction of the force is vertically downward. What's more, someone in our family has made more than 10,000 parabolic arcs." Gan Fu kicked his cousin beside him. "He figured out the rules for calculating parabolic arcs!" "Cousin, it's time for you to bring glory to our Gan family. Show the calculation rules for ten thousand different parabolas you made to those bastards of the Shi family!" A group of Gans The people at home started asking the man next to Gan Fu who was in his mid-twenties and loved to throw stones.For this reason, I had to throw stones every day. Then when I was fifteen years old, I suddenly had a brainwave and wanted to study why the stones flew out in such a trajectory, and why they flew out when thrown at a small angle on the water. real. To be honest, if this was an ordinary person, he would have been defeated by reality long ago, but because he was born in the Gan family, this guy is still alive and well, and has learned a lot of relevant mathematics knowledge for this, and the Gan family also has this Noncommittal. After all, calendar astronomy and mathematics are inseparable at all. Although Gan Zhen¡¯s madness in learning mathematics has a bad purpose, as long as he learns it, it is good. It is better than starting to indulge in women at the age of fifteen. Mathematics is a good subject. It¡¯s a subject that focuses on orphans. The Gan family said that they need to study hard. It doesn¡¯t matter if those who promote family studies have bad intentions, as long as they are really doing research. As for focusing on orphans, etc. , Just joking, Gan really has reliable children. There is no way, no matter how bad the Gan family is, it is still a long-established family, so that the younger generation who actually works in the family does not have a wife? Are you kidding? Do your research carefully, as long as you are a big shot, your wife will definitely be ready for you when you are born, waiting for you to marry her. "After I threw the ball tens of thousands of times and recorded its landing point and trajectory, I finally concluded based on the difference in the degree and height of the force at the beginning. There is indeed a downward force, and after comparing this value with the weight, it should be It is a fixed value, that is to say, we are always subjected to a force on the earth that is perpendicular to the place where we stand. "Gan Zhen said that it was really not in vain that I threw the stone tens of thousands of times, especially the closer I looked from behind. "Center of the ball!" Everyone reacted instantly. There was no one in the group present. After telling the force perpendicular to the standing position, everyone came up with a result. "We need detailed experimental records, and what you call should be a fixed value, and how do you achieve the degree of force?" Someone from the Shi family stood up and asked. They seemed to have discovered something important. . "I threw it casually at first, and then I threw it with the same force." Gan Zhen explained very solemnly. At this time, everyone actually noticed something, that is, the force was directed towards the center of the ball, and if it was In all directions, it can explain why it is a ball. "The same power?" The Shi family frowned and looked at Gan Zhen. "It's a trajectory recording experiment of small ball swing arm collision." Shi Bao had already answered for Gan Zhen before Gan Zhen answered, "Just use small balls of the same weight to exert force from the same height. I have this experiment at home. A lot of records." Gan Zhen nodded, he did the same thing and made a lot of copper balls of the same weight. "What conclusion did you draw?" Gan Zhen asked curiously. "A string of the same length holds the ball in a swing, and the change in mass of the ball has basically no effect. However, as the length of the string increases, the period becomes longer. There is a linear relationship between the length of the string and the square of the period. I tried to calculate For a moment" The corner of Shi Bao's mouth twitched twice, and he couldn't figure it out. Hahaha, Shi Bao expressed that he wanted to curse. "That is to say, we are all stuck at the downward power ratio. Is there any way to calculate it first? No matter why, let's try to see if we can calculate it?" Gan Zhen looked solemnly. said. "Obviously judging from my pile of trajectories, the ratio should be a fixed number. Although I don't know how this number came from, we can work it out in other ways." Gan Zhen began to secretly encourage Come to think of it, in this kind of family, burning money is simply a human thing. But at this point, the Gan and Shi families no longer want to continue talking to each other. Why ask others to do things they can do themselves? There is a lot of research data in our pile of papers. Now we just need to continue to burn money. . They have the direction, and they are still sure about burning money. Although they don't know what the ratio is, but who cares, just calculate it first. In mathematics, as long as the process is correct, the final result will be fine. It's against common sense, and it's definitely logical, so we've reached this point Our Gan family doesn't need scum like the Shi family. Let's go back and study the small ball parabola, summarize the rules inside, and calculate the mass first. The ratio to the power attached to the earth, as to why it is attracted, will be discussed later. The Shi family¡¯s thinking is the same. The garbage Gan family should get out of here. We, the Shi family, are going to study the period and line length in the swing of the ball. When the time comes, we will deduct the value inside, and then we will blow the Gan family to death. So the two families, under the leadership of their respective elders, had a fight with each other and broke up on bad terms. Then they rushed back and started burning money.Experiment, prepare to simply and crudely reverse the formula based on a large amount of data.