The author of the article does not invent new physical laws, and in no case tries to violate the existing laws....
For the closed system, i.e., the system, which does not experience external actions, or in the case, when the vector sum of those acting on the system of external forces is equal to zero, occurs the law of conservation of momentum. In this case the momentum of the individual parts of the system (for example, under the action of internal forces) they can change, but so that the value remains constant.
This law explains such phenomena as reactive motion, return (or recoil) with the shot, work of screw propeller or oars, etc.
For example, if we consider gun and bullet as one system, then the pressure of solid-reactant gases with the shot will be for this system the force of internal and cannot change the momentum of system, equal to shot to zero. Therefore, reporting to bullet the momentum , directed toward the muzzle end face, solid-reactant gases will report simultaneously to gun numerically the same, but oppositely directed momentum , which will cause return. From the equality (where , the numerical values of speeds) it is possible, knowing the speed of bullet with the departure from the stem, to find the maximum speed of return (but for the instrument - recoil).
In the given example of body acquire the speeds under the action of the power impulse , whose value is equal for both bodies, but it is opposite in the direction (fig.1).
They move rectilinearly and evenly after the action of the
power impulse of body.
If we consider rocket and products of combustion of rocket propellant as united mechanical system, then the center of the masses of this system also keeps its position constant. (in the frame of reference, connected with the launching point.)
The situation, when the components of the system of bodies acquire momentum not due to the clearly expressed power impulse, is at the same time possible.
Let us examine the following example.
Around the body by mass revolve two bodies of identical mass (fig.2). All bodies are connected by rigid indissoluble connections. Rotation with the angular velocity occurs around the overall center of the masses of system, which coincides, in this case, with the center of the masses of body . The system of bodies is balanced. Its center of masses is fixed. The projections of momentum on the coordinate axis are equal to zero.
If we at a certain moment of time tear one of the connections, then the components of system will begin to be moved in opposite directions.
After the break of connection the system is decomposed into two components: body and system of two connected bodies and (fig.3).
Body will move rectilinear and it is even tangentially to the trajectory of its motion at the moment of the break of connection.
The system of bodies will also move rectilinear and it is even. The momentum of this system, in the absolute value, will be equal to momentum :
, where - the speed of the center of the masses of the system of bodies and .
One should emphasize that the expression "is rectilinear and evenly" it relates only to center the masses of the system in question (it is noted by red color to fig.3). The components of system, at the same time, acquire the uneven relative speeds of displacement relative to the overall center of masses.
If body at the initial moment of time, immediately after the break of connection, moves just as body (in terms of the absolute value), then for the body the initial velocity is equal to zero.
Thus, body "is late", its speed noticeably lags behind the speed of the center of masses at the initial moment of time, immediately after the break of connection. It is possible to show only slow (fig.4).
This process of "delay" can be increased, "extended in the time".
Let us assume on board a certain flight vehicle, which is
rested in weightlessness, is established the annular centrifuge, evenly filled
throughout entire circle with pellets. Rotary motion is given to centrifuge. The
axis of centrifuge coincides with the center of the masses of flight vehicle. At
a certain moment of time, pellet they begin to leave centrifuge. They leave
consecutively, after each other, from one and the same point, relative to the
housing of flight vehicle.
If pellets fired back how in an example with the gun and the bullet, then after each shooting of pellet, the housing of flight vehicle would acquire the pulse, equal in magnitude and opposite in the direction of fraction.
In the case with the centrifuge, there is no "shooting".
Pellet simply "is released", i.e., is broken the bond, due to
which the pellet accomplished rotary motion relative to the axis of centrifuge.
In fig.5 is represented the graphic
version of the described process for the case with the centrifuge, which
contains 4 load- pellets.
At the initial moment 0 (fig.5) load are evenly distributed . Centrifuge is balanced and revolves with the angular velocity . The center of the masses of load (point"C") coincides with the rotational axis of centrifuge and the center of the masses of the housing of flight vehicle.
After each department of pellet (moments I.II.III.IY in the figure), the center of the masses of the housing of apparatus with the unbalanced centrifuge move rectilinearly and evenly (broken line 3).
Pellets also move evenly and rectilinearly (straight lines 1).
But only first and latter of pellet (moments I and IY) are separated from the center of the masses of system [ the housing of apparatus + centrifuge ] (in the projection on the axis of displacement of components).
At the moments of time the II and III loads are separated at a certain distance from the center of the masses of system [ the housing of apparatus + the unbalanced centrifuge ]. Occurs as the "delay" of the process of department. "delay" from the uniform and rectilinear displacement CM.
For the comparison, figure gives the possible trajectories of the motion of pellets in the case of their shooting from the center of the masses of system [ housing + centrifuge ] (dotted lines 2 in the figure). By "shooting", in this case, is implied the department of particles under the action of the power impulse, after which the particles would acquire the same relative speed as with separation from centrifuge. Each shooting of pellet would be produced from the center of the masses of the housing of flight vehicle with the load of the remained pellets. I.e., from the point, which is noted in the figure as point "C". This point moves rectilinearly and evenly after each "shooting".
I want to recall that with the aid of the contextual menu Flash Player (cliques by the right key for mouse in the figure) it is possible to govern the motion of the animation: to change scale, to stop, to make frame survey, etc.
After department, pellet they fly to the moment of contact with the rear wall of flight vehicle.
The center of the masses of the "chain" of the pellets, which were separated from the centrifuge (position of point to fig.5), is displaced relative to the center of the masses of the pellets, which would be "shot off" (position of point to fig.5).
After connecting the flying pellets with the housing of flight vehicle, the speed of housing will be equal to the initial velocity of entire mechanical system, or, in this case, zero.
But the position of the center of the masses of entire system "housing - load" we will be different for the different methods of the department of the particles of the load.
Graphical solution clearly shows that the center of the masses of mechanical system, with the different methods of the separation of components, has different coordinates. (solution not only is graphic. To look the graphs of the displacement of components for the conditions of specific objectives, is possible here.)
Thus, it is assumed that there is a possibility of displacing the closed mechanical system due to the internal energy of system. With this displacement the law of conservation of momentum is not disrupted.
The shift of the center of the masses of entire mechanical system occurs
during entire period of separation of the particles of the load from centrifuge.
It is possible to assume that the distance to the "rear wall of flight
vehicle" is equal to zero, i.e., the particles of load fly "zero" distance.
Blue track the movement of the body(case).
You can look the mathematical calculations, which describe this assumed phenomenon, with the address: https://varipend.narod.ru