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Atheist: Thank you for your reply. Earth is a very big object, but a wood or iron ball small. There is attraction between two objects because of opposite direction of their curved time-space.That is reason why Newton's theory cannot explain Galileo phenomenon. The earth's time-space is very big compareing to a small object. A observer in earth's time-space feels that small object falls down to the earth, but it is not real. Weight is the effect of resistance. If ther is not resistance, there would not be weight. Object would have not weight, if it is free or in free movement, for example, gyroscope. Yes, almost all physicists think that gravitational force acts on object and makes it and have weight and free fall. They feel that it is true. However,we know that it is not true now from my very simple experiment. Truth is important. If a theory can explain the truth, it would a good one. Of course, Newton and Einstein are big physicist and their theory is dominant in physics. However, if their theory is not consist with truth, you can judge what we would do. If you want clarify the truth, please read the theory in the reference book because of that it concern a big theory of tim-space, which I can not explian it in a word. Thanks very much Your sincerely. 424319 If you want to

Mr. Duke: All thing or its individual always move in 4 dimensions time -space, for example, in the Sun's time-space. It's track is a double centers wave. In the 4 dimension time-space, there is not a real circle or rectilinear. In a big dimension time-space, for example, in the Sun's time-space. a observer may feel that all object in small dimension time-space is or moves in 3 dimensions time-space. 424319 Please read Reference: Xiaozhong Zhai, Thing and Its Law, Chapter 2: the Active and Passive Motion of Time-Space and Chapter 5: the Duality of Time-Space and Energy (Vitualbookworm.com Publishing Inc, college station, 2003).

The mechanism of falling object is always an interested topic. Almost all physicists think that gravitational force acts on object and makes it have weight and free fall. Here a very simple experiment negates the above parlance. Galileo demonstrates that different mass bodies increased their speed at the same rate (Stephen [1]). Galileo phenomenon implies that there may be two different mechanisms that govern it. One is the equality of gravitational and inertial mass based on facts that object has weight (Einstein [2]). Another is that falling object is not governed by gravity. Under this condition, falling object must be weightless and stay on how it is left in falling process. So, falling object is passive. Let us see a very simple experiment. A object, a solid iron ball (diameter is 4cm) with a long handle (diameter 0.5 cm and length 15 cm), is kept on balance by hand at angle 0,60,90,120 degrees with vertical line respectively in air showed in Fig. up-up A, B, C, D. Release the object, and then it is free falling. The angles of object in space are always not changing in free falling process showed in Fig up-down A, B, C and D. The object stays on how it is left. Its solid ball with big mass does not go further downwards than handle with less mass. When the process of free falling object is blocked by floor, it falls down on it at once because of weight showed in Fig up-down E. Obviously, the object is weightless. Its weight does not exhibit, until it meets resistance. If it has weight in free falling process, the ball part with very big mass is very heavy and must be more downwards than light handle. Weightlessness, unchangeable state and Galileo phenomenon are three properties of free falling object. Weightlessness verifies that Galileo phenomenon is not a direct consequence of the equality of gravitational and inertial mass. Time-space or field of any body is spherical. Its curvature direction points to center. The curvature direction of time-space of two bodies is always opposite. This is the reason why they attract each other. In their closing process, they respectively move from other’s low curvature to high. In a word, the motion of them is the direct consequence of time-space curvature contraction. Gravity is not the cause of attraction between two bodies. Any force including gravity is an index of resistance (Zhai [3]). The time-space of the Earth is very big, but that of an iron boll employed in experiment limited. So, the Earth can be seen as a fixed body, the phenomenon of falling object is just the result of its time-space converging at center. In this way, the curvature surface of time-space of the Earth on which object stays converges at its center. Object that follows the motion of time-space curvature surface falls showed in Fig 2. The motion of falling object is passive one. This is reason why object in falling process is weightless and continue in rest or motion. So, it is easy to understand why the acceleration of falling object does not concern with mass. When object meets resistance, it gets behind the curvature surface motion of time-space that moves continually. So, weight that resists the change in height may be seen as an index of mass inertia, not gravitational force, because the change in quantities of mass only causes the change in weight, not in gravitational acceleration determined by curvature and curvature intensity of time-space (Zhai [3]). The change in weight is equal to that in inertia. This is reason why inertial and gravitational mass is equality and exactly proportional to one another. Weight is a direct consequence of passive motion of object that is blocked. The converging motion of time-space at center is accelerated one. So, the object that follows it gains the same acceleration, then kinetic energy and momentum. Any object or body that has three properties may be called free one. For example, gyroscope, spacecraft and instrument in it and Moon that can be seen as free object relative to the Earth. . Obviously, here a very simple experiment demonstrates that falling object is the direct result of the converging motion of time-space or field at center, not gravity. The mechanism of falling object is the touchstone to test gravity and general relativity theory. My observed result and theoretical discussion may be a complement to Newton’s theory. References: 1. W. H. Stephen, a Brief History of Time (Bantam Books, New York, 1988). 2. A. Einstein Relativity, the Special and General Theory (Bartleby.com, New York, 2000). 3. X. Z. Zhai, Thing and Its Law (Vitualbookworm.com Publishing Inc, college station, 2003). chapter. 2. [The Active and Passive Motion of Time-Space] and chapter. 5. [The Duality of Time-Space and Energy]. Figure1 Figure caption: Figure1 Process of free falling object and object meets floor for an instant Figure2 Figure caption: Figure2 Process of centripetal convergence of the earth’s sphere time-space and of falling object

According to a new theory of time-space, time is an expression of distance or curvature. Time is space. Space is time. Two things are same. It is unnecessary to postulate that time is the forth dimension. For example, time-space of the earth system, sun system and atom, and so on, is spherical. The rectilinear motion in plane coordinates or three dimensions in classical physics occurs in spherical time-space and must be influenced by it. This is reason why time-space is a four dimensions. Reference book: THING AND ITS LAW (ISBN 1-58939-525-5)

Is there gravity in the process of falling body? The answer is not. Galileo demonstrated that the acceleration of falling body is not concerned with mass, volume and chemical elements. This is Galileo phenomenon. Newton and Einstein attempted to use their theory, gravity law or general relativity to explain Galileo phenomenon, but it is not perfect. All physics know this. All physics also know that many phenomena can not clarified by Newton’s gravity law. For example, Newton’s law of gravity can only perfectly explain why tides occur on the side nearest to it, but not on the other side. In fact, there is not necessary relation between the phenomenon of falling object and Newton’s law of gravity. We need a new time-space theory. Is it Pseudoscience and Metaphysics? Reference: THING AND ITS LAW (ISBN 1-58939-525-5), chapter 2: timedistance and timecurvature (the active and passive motion of time-space) and chapter 5: natural force(the duality of time-space and energy)published by Virtualbookworm.com publishing Inc

There is not gravity. Some one may think that it is laughable. According to three zone theory, The center and central zone of a sphere time-space, for example, the earth's time-space, is a absolute contraction zone. The middle zone is relatively a weak contraction zone. In the above two zone, the contraction or centripetal motion of time-space curvature is dominant. With the motion of curvature, a body is moved from the law curvature surface to the high. However, the body self does not move actively. It is moved with the motion of curvature, as if it is on a balloon that is gradually shrinking. An observer who takes the center of the earth as a reference feels that the body is falling down. Reference:THING AND ITS LAW (ISBN 1-58939-525-5), chapter 2: timedistance and timecurvature (the active and passive motion of time-space) and chapter 5: natural force(the durality of time-space and energy)published by Virtualbookworm.com publishing Inc.

The formation of wave is determined by The double-focus principle. In the spherical time-space, there are two focuses according to the duality principle of curvature. One is real focus caused by contraction motion of time-space. A nother is virtual focus decided by expansion motion of time-space. Two focuses overlap and interplay each other, which causes a serial vabration of time-space. So, wave is born by it. This is just theSo-called double-focus principle. Reference:THING AND ITS LAW (ISBN 1-58939-525-5), chapter 2: timedistance and timecurvature (the active and passive motion of time-space) and chapter 5: natural force(the durality of time-space and energy)published by Virtualbookworm.com publishing Inc.

The main idea of new theory of time-space is that time is a expression of change in motion distance and curvature. In a word, time is equivalent to space, and vice versa. According this new theory of time-space, there are three kinds of clock. Those are current clock, thing clock and Doppler clock. Every clock has its own second unit. Time-space is moving. Active and passive motion of time-space form a whole world of physics. The new theory gives us a definite answer to what the nature of wave, light,gravity,energy,passive inertia, active inertia, electricity, magnetism, special and general Doppler principle is. Reference:THING AND ITS LAW (ISBN 1-58939-525-5), chapter 2: timedistance and timecurvature (the active and passive motion of time-space) and chapter 5: natural force(the durality of time-space and energy)published by Virtualbookworm.com publishing Inc.

The passive inertia is caused by the passive motion of time-space. The active inertia is caused by the active motion of time-space in spherical time-space. The passive inertia is determined by mass. But, the active inertia is decided by the curvature of time-space and speed of time-space motion. For example, the variable of the reaction in the Newton's law is determined by the active inertia. Reference: THING AND ITS LAW ( ISBN 1-58939-525-5), chapter 5, formula 5.1, published by Virtualbookworm.com publishing Inc.

Light wave is a effect of the vabration of atom's sphere time-space determined by the double-focus principle. Light wave is a serial time-space spherical wave. light wave carries curvature and kinetic energy, but not mass.Suppossition that light wave transfers a equivalent mass is wrong. So, the mass-energy formula created by Einstein is also wrong. Energy is equivalent to the change in the curvature of time-space. Reference: THING AND ITS LAW ( ISBN 1-58939-525-5), chapter 2,5, published by Virtualbookworm.com publishing.Inc.

There is not gravity, only motion of time-space curvature. Reference: THING AND ITS LAW ( INBN 1-58939-525-5) published by Virtualbookworm.com publishing INC.