**Can Solve Dark Matter on the Ground**

Xu Qi-ming

E-mail: xuqiming2005@163.com

Hebei University of Science and Technology Tangshan’s Branch

2012-8-30

1. Question

The word “dark matter” came from the astronomers’ observation to the spiral galaxy in which the rotation curve tends to level. If we can find what causes the curves to tend to level, it is equivalent to solving the mystery of the dark matter on the ground.

As everyone knows, It has been proved by experiments that a suspended shot gives off outward own gravitational field as same form in its above and below two directions (i.e., The shot coincide with Newton's law of gravitation only in the two direction) .In other words, shot gives off own gravitational field as same form in the same or opposite to the two direction of the acceleration of gravity. Because have confirmed the gravitational mass is equal to the inertial mass, therefore , This sentence can be extended for: the matter gives off its own gravitational field as same form, in the same or opposite to the two direction of the acceleration to outward .

This is important conclusion.

2. Different Types of Gravity Field

In the gravitational field was described by Newton's law of gravitation , the gravity is inversely proportional to the square of the distance f∝1／r2.It is characterized by the gravitational intensity equal points on the surface of the sphere; the distance from the center of mass is equal,

Therefore, this is a kind of spherical gravitational field, which has only a gravitational constant (hereinafter referred to as the ES ). However, gravitational intensity f ∝1 / r2 can also be ellipsoidal gravity field (referred to as the Ee), that is, the points of the same intensity are on the surface of the ellipsoid that wraps the center of mass. The difference between is that the latter there are different gravitational constant in different directions, the maximum value in the direction of the long axis; the minimum value in the direction of short axis, but the former is only one .

As a general rule, the earth's gravitational field can be approximated as a spherical gravitational field in which there was only one gravitational constant G, but, because the acceleration of gravity is 9.78m/s2 on the equator , the gravitational acceleration is 9.814m/s2 that is larger than 9.77m/s2 of gravitational acceleration at 21 km above the poles where the radius is equal to equatorial radius, so strictly speaking, the earth's gravitational field is an oblate rotating ellipsoid gravitational field, its shorter axis coinciding with axis of rotation of earth. Although earth's rotational speed is not high. The existence of Ee shows that the material radiated gravity is not uniform in space.

Is ES or Ee the shot on the ground?

Although, the classic gravitational experiments have reported to get the same result at the shot a side just as on the top or below of the shot. However, so far, these classical experiments are all relatively isolated two shot: with a small to a large to make measurements of in only one direction, it has not been done on a horizontal plane in more than 2 directions at the same time. Therefore, it is the lack of experimental evidence that Confirmation the shot’s gravitational field was a spherical gravitational field and it has only a gravitational constant G by textbooks recorded.

The author had measured a shot’s gravity with "T" type balance that the experiments showed as follows:

1. On the ground, the shot’s gravitational field is a long rotating ellipsoidal field whose long axis perpendicular to the ground.

2. When a small shot m is put on the side of the large shot M, due to from influence of m near, the M’s ellipsoidal field is pulled into flat toward the m’s direction, M’s field was change into a oblate rotating ellipsoid gravitational field that was perpendicular to the ground and its shorter axis perpendicular to the line of connecting the two shots’ centers but the length of the long axis basically unchanged ,it is why that the gravitational constant G value has measured on the side of a shot as basically same as on the upper and lower two direction.

3. When two small shots is put in the large shot M’s sides on a horizontal plane along the vertical each other different two direction, and at same time measuring for the M gravitational pulls to the small shots, the pulls that each of them will be reduced than there is only one in the M’s side, but in Perpendicular to the ground direction remain unchanged.

This experiment shows that:

The currently accepted gravitational constant G’s value , just is a peak value of long axis direction from the shot’s ellipsoid gravitational field, it is larger than gravitational constant real value of the shot’s spherical gravitational field, so it is greatly exaggerated that the contribution amount of the unit mass to the gravity field, when this G value is used as a parameter to calculate quality of the earth and other celestial body ,the calculation results are less than their true value.

The reason that the shot’s gravitational field is different from the earth's is both background gravitational field completely different: on the ground near, the background gravitational fields which come from the sun, the moon and other celestial bodies, are so small that it was been enough ignored, but near the shot the earth’s gravity field strong far greater than the shot its own field.

The earth's gravitational field is approximated as spherical gravitational field, not only the roles of other celestial bodies are ignored, but the rotation and revolution of the earth also are ignored.

If the gravitational source M is a rotating planet and " P " is an arbitrary small unit of mass on the planet, P is not only subjected to the action by the universal gravitation Gw which is pointing to the center of mass, and also is subjected to the action by the inertial centrifugal force L, (although the inertial centrifugal force L is balanced by a component of Gw, but L is objective existence), as shown in figure 1.

According to the front conclusion, unit of mass P not only outward radiates own gravitation

along the same or opposite to the two direction of Gw ,and also does along the same or opposite to the two direction of L, as a whole, the kind of attraction pulls by the planet produced can form a special gravitational field，in which the gravitational acceleration just point to spin axis of the gravitational source M, as the shape of disc in space, so it can be referred to as diskal field ED. It is different from Both the Es and Ee, in both the gravitational pulls are all point to their respective center of mass.

In the Es and Ee, the mode of outward expansion of gravitational pulls are according to the 2 dimensions (i.e., f∝1 / r2 ), its decay quickly; In the ED, the mode of outward expansion of gravitational pulls is according to the 1 dimensions (i.e., f∝1 / r), its decay more slowly.

Specifically, the outward expansion of discal gravitational field is only the disk circumferential edge，although the diskal field has a certain thickness, but, The thickness is not dilatation.

In the ED, due to the gravitational pull is attenuation as mode of f ∝ 1 / r , therefore, according to the kinematical equation can come to the relation:

v2/r∝1／r, i.e., v= constant.

Thus, in where far from the vortex galaxy center, when the spherical field of gravitational source attenuation was so more that the Es can be neglected, where almost is pure diskal gravitational field, the celestial circular velocity of course can are constant.

From what has been said above, the so-called “dark matter " phenomenon is only error results which people with calculation formula of spherical gravitational field that is described by Newton's law of universal gravitation, incorrectly applied in the discal gravitational field ,and with an imaginary great matter to cover the mistake.

Anyone completing gravitational orthogonal experiment and the gravitational source rotation experiment, he can know the so-called “dark matter” is does not exist.

(Diskal gravitational field derived see Appendix)

The two types of radiation which make up the gravitational field

------ Mainstream radiation and Secondary radiation

http://xuqiming2005.blog.163.com/blog/static/127902122007816101049738/

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