About Anti-Gravity Technology（1） by zhaoshanhu Our physics is quite developed, but there is no accurate answer about the physical mechanism of the gravitational field. Although Newton and Einstein have made significant contributions in this field, human beings still do not understand the gravitational field. Then, it can be considered as blindness to study anti-gravity without understanding the physical mechanism of gravitational field. Before researching anti-gravity, we need to think about the solar system and the Milky Way. Why does the earth revolve around the sun, but not fall into the sun? We all know that there is a region of zero gravitational force between the sun and the earth - the Lagrangian point! From the Lagrangian point, we can understand that the anti-gravity of the sun's gravity is the earth's gravity, and the anti-gravity of the earth's gravity is the sun's gravity. That is to say, the anti-gravity is actually the problem of researchin

g the gravity.