My nephew told me, “When Apollo landed on the moon, it increases the mass of the moon. So, if NASA keeps sending spaceships to the moon, the moon can fall to the earth!"[read the short summary of conception]The acceleration of gravity had formulated by Newton with his general gravity theory. But the gravity force is not a pull force of a mass; it is the action-reaction of two gravitational fields.

The gravity field of two masses is influencing each other as shown in figure 1. The gravity field of lighter mass is bended by the stronger gravity force of higher mass as shown in figure 2. The bending space causes unbalance space compression as shown in figure 3. Therefore, the lighter mass falls to the bigger mass.

Figure 1.2 and 3

From figure 3 we find there is a smaller force that tries to hold the smaller mass to fall to the bigger mass. Then, I just make an oversimplified calculation about this, the result is amazing. The oversimplified calculation about interaction of gravitational field shows the force that holding smaller mass does exist in the orbital system.

I call the force that holds a mass from falling to higher mass as orbital properties. If two masses have high orbital properties, these masses can be coupled into an orbital system. But this calculation leads to a phenomenon that most people do not agree, the phenomenon is the existence of free energy.

When I calculate the orbital property of moon and earth, the result shows high number of orbital properties. High number of orbital properties can make the moon has various angle of orbital shape as shown white line in figure 4.

Figure 4

The Kepler law of energy conservation of orbital system said that the line from a planet to the Sun sweeps out equal areas in equal times. But the sweeps only work for two dimensions. Three dimensions orbital system sweeps wider area. The moon also has three dimensional areas that makes solar eclipse cannot occur every year. That is why the orbital system of Moon and Earth produces ‘free energy’ that makes moon move away from earth about 3 cm per year.

Many publications had said that the Moon moves away because of the ocean tide on the earth. But I can find the mathematical evidence to support this publication. A calculation that tries to support this publication was written at http://oceanworld.tamu.edu/resources/ocng_textbook/chapter17/chapter17_04.htm. But this page does no longer exist, because it shows a big mistake. It concludes that the gravity of moon is higher than gravity of sun. Simple high school calculation shows that the gravity of Sun is higher.

Furthermore, my calculation confirmed the orbital properties of sun, planets, moon, Jupiter’s satellites, and asteroids. It also confirmed that ordinary masses; including our communication satellites, have no orbital properties. Perhaps, that is why we have many cases of satellite orbit anomaly.

In the satellite orbit business*, most anomalies were observed to occur early in the mission* [1]. Common analysis on the anomaly blames the manufacturing defect while material fatigue has less effect. Since the trend of anomaly associated with GN&C (Guidance, Navigation & Control), we may consider the probability that anomaly in early mission is caused by wrong parameter of gravity calculation.

[1] Brent Robertson, Eric Stoneking, ** SATELLITE GN&C ANOMALY TRENDS, **NASA Goddard Space Flight Center,

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