~New space propulsion secure system exceeded the existing (risky) rocket propulsion etc~

First of all, It is said that a (spaceship) body of the closed system has never moved in accordance with the conservation law of momentum until now, unless something (propellant) is released outside the system....

However, in consideration of the closed [...] system,
it could not apply the momentum conservation law, including even a flowable substance inside the same system.

Because it would be able to be easily judged when rightly understood Pascal's principle is defined as :
When there is an increase in pressure at any point in a confined fluid, there is an equal increase at every other point in the container.
(and/or)
In a fluid at rest in a closed container, a pressure change in one part is transmitted without loss to every portion of the fluid and to the walls of the container.

In brief, just the thing that the Pascal's law (which may well apply the momentum conservation law only in the above container) could be applied is limited to a state of "rest" in fluid statics (not fluid dynamics).

So, it must move necessarily (not remain at rest) for an object (with a hollow body) of the closed [fluid] system in case of being able to cause aptly some pressure difference according to mainly Bernoulli's Principle, using a fluid moving body (flowable substance) in the same container.

*Note : Please pay attention to that Bernoulli's principle is not always based on the law of momentum conservation, even though it corresponds to the law of the conservation of energy.

[The Supplement]
As for the definition of the closed system related to the conservation law of momentum,
it is basically classified as follows.

*The momentum conservation law can be applied in the closed non-fluid system.
*The above important law can not be applied in the closed fluid system at all.

In a closed system (one that does not exchange any matter with its surroundings and is not acted on by external forces and does not allow certain types of transfers in or out of the system),
the total momentum is constant. (the momentum conservation law)

However, just inside a closed fluid system that does allow certain types of transfers (such as transfer of mass and/or matter) in the closed system of a hollow type,
the total momentum is "variable". (the momentum non-conservation law)

So, Pascal's (first) law is defined as
A change in pressure at any point in an enclosed fluid at rest is transmitted undiminished
to all points in the fluid.
And Pascal's second law (or King O's principle) may be defined as
A change in pressure at a point in an enclosed fluid not at rest is transmitted increasing
(and/)or decreasing to any other point(s) in the fluid.

Therefore, the hollow body (as a spaceship body) in the closed fluid system must always move forward
(or backward) in case of being able to cause pressure difference by the fluid at both ends (etc) of its body,
just considering Bernoulli's principle that is not necessarily based on the law of momentum conservation and that corresponds to the law of the conservation of energy yet.

[Basic Points of Attention to Newton's laws of motion]
The established first law is...
Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

That revision of the above law should be...
Newton's first law states that every object (except one with a hollow body included flowable substances in it) will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

[Basic Points of Attention to Thermodynamics]
The fixed first law of thermodynamics may be principally stated as follows :
The increase in internal energy of a closed system is equal to total of the energy added to the system....

But, it should be revised (added) more precisely thus,
*The increase in internal energy of a closed (non-fluid) system is equal to total of the energy added (from its surroundings) to the system....{Equilibrium Thermodynamics}
*The increase in internal energy of a closed (fluid) system is not always equal to total of the energy added to the same system...{Non-equilibrium Thermodynamics}.

As for the following space propulsion devices (not a perpetual-motion machine) of the closed fluid system,
no matter how much frictional heat (frictional force) has been generated during the engine operation of the apparatus(es), they could not have affected so much the moving force (motility) produced by the pressure difference...

[The Consequence]
F = (P1-P2) Ae
F : Thrust force by (internal) pressure difference
P1 : (Internal) Pressure pertaining to one direction (a forward direction)
P2 : (Internal) Pressure pertaining to the opposite direction (a backward direction)
Ae : The area of the (inner) surface on contact

Its formula is similar to " (pe-po)Ae" of "F =-meVe + (pe-po)Ae"
as the existing rocket thrust's formula.

An object of hollow structure (that does allow certain types of transfers in its body) can be moved itself by an inner force (not an internal force in the action-reaction law) resulting from internal pressure difference without external forces (from the outside of the body).
*King O's law of internal motion (by Kingo Ueuchi)

***Several unique ways of producing the pressure difference inside the hollow body of the closed fluid system are shown as below.

{The space propulsion (by pressure difference) of (air &) water jet propulsion type}
In case of the following spacecraft propulsion unit, to put it briefly, it is possible to produce just a thrust force by the pressure difference, laying (an air and) a water barrier and so forth.

[THE WATER (PUMP) JET PROPULSION VERSION]
space444

[THE NEW UNIQUE WAY OF THE WATER JET TYPE]
In the first place, it generates a water jet flow for this propulsion from a water jet nozzle (g).
In the second place, it lays a water barrier for mainly the backing power stop from each pump (e) of the both side.
In the third place, it circulates the above water via suction pumps (c) etc.

Thus, it will be able to reach super high speed (close to the speed of light) by repeating the above (automatic) operation to produce the forward force larger than the backward force in the gravity-free space.

space33~~~~
In addition to the above Water Jet propulsion type, Air Jet type and Air & Water Jet type and so on
have already been originally devised...

{The Way of the other Space Propulsion System}
First, according to the following Fig.1, two (or a more even number's) iron balls (a) with large mass are shot simultaneously from each shooting device (d) of an electromagnetic type etc in vertical directions against any propulsion direction, not to cause backing power as reactions of the above shooters to the utmost.
Secondly, just after the iron ball's passing through each corner curve (on an angle of 45 degrees) in an elastic tube rail of plural ones (b), the spherical shot body in a non-contact state with the main body (c) does cause a completely inelastic collision with the nose (the end) with an electromagnet apparatus of the main (hollow) body.
Thirdly, it may be always repeated (restricken) from the beginning shot many times, recovering the iron balls to the same ball shooters slowly without causing the backing force by utilizing the shooting ball recovery equipments (f) right after cutting power supply for the electromagnet temporarily (for the moment).

[The theoretical formula]
An equation of momentum conservation in the perfectly inelastic collision between the main body and the spherical body after passing through the curve is...

m1v1 + m2v2 = (m1+m2)v3
m1 : The iron ball's mass (per shot ball)
v1 : The same ball's velocity (after its passing through the tube rail's curve)
m2 : The main body's mass (without the above ball)
v2 : The main body's velocity (involved the backward force just after the ball's passing through...)
v3 : The united body (a spacecraft module body)'s velocity

[The Experimental Method (on the ground)]
This ground experiment purpose is to examine (research) whether the main body (A) moves (works) surely (really) when the completely inelastic collision occurs between the same body (A) & the spherical body (B)
as shown in each simple design (Fig.3) of the below,

and then, the following accurate (computable) distance (x) that the united body moved actually from the first position of the same body to its last position could be calculated from the value of v3 (m/s).

*In case of the ground experiment with the temporary equipment module, a (little) backward force would have been exerted on the main body (A).

Because the spherical body (B) always comes into contact with the above body (A) up to the collision between the iron ball(s) & the neodymium magnet board, however, in case of the space flight with this spacecraft propulsion module, the A body & the B body are in a non-contact state after each iron ball's passing through the tube's curve...

[The Experiment Data]

"Proof (example) is better than argument (precept)."

First of all, please see scientific experiments in the following movie files (DS1.AVI & DS2.AVI & DS7.AVI) fairly by the third party, not by intention of the inventor (the author).

Note : Each main body in the DS1 and/or DS2 which weight is more than 150g could move slightly but surely.
Of course, it moved without hitting on a rear block etc.

As a proof, please see the ground experiments in the following video file : DS7
that replaced the shooting power with gravity (G force) even with no blocks...

***The movement has never been done by a frictional force from a ground surface,
because of no power unit (for transmission gear) to directly turn wheels of a cart used for dynamic experiments.

As for the experimental results, it's been all the same as the above movement in (re)testing many times.

Indeed, it could have been shown by means of evidence that thrust force of the spacecraft propulsion engine system is incomparably larger than thrust one of ion engines which can move only a thing (1g) on the ground.

And then, the same body would stop straightaway by that friction on the ground, however, it could certainly show uniform motion!! in the universe.

Moreover, it will be able to approximate to a dream-like superspeed (semi-light speed) by reusing repetitively some inducing substance (the iron ball...) which is not disposable just like rocket fuels.

[Supplementary Explanation]
If someone is still doubtful as to the above experimental results
just like a magic trick that can deceive one's eyes....,
shall anyone try a thought experiment
without using these experiment tools with the express purpose?

In the first place, imagine that an iron ball (A) which is large (about 7kg and over) in mass
like a shot of athletics and a neodymium magnet ball (B) which its mass is small (about 0.005kg) are floating in a (universe) gravity-free space.

In the second place, let's assume that the A body with velocity faster than B from the right side hits
the B body with velocity slower than A from the left side.

What will become of the corporate body at all?

Of course, the above united body does uniform motion, not at rest
in the direction of the left side from the right side.

This space propulsion system has applied that motion no doubt!!

The point is to take advantage of pressure difference effectively
at the perfectly inelastic collision and then, it is possible to move forward so smartly....

~~~~~
The main advantage of this space propulsion system is to be able to use it repeatedly any number of times,
(so long as the electric power isn't off) not one-time or several-times only as with a rocket thrust.

So, even if it is a small size just like a toy, it's possible to move more easily even a mega-spaceship like Starship of Star Trek floating in the gravity-free space,
moreover, with ultra high speed indeed close to the speed of light....

...You may ask NASA etc, if you have any doubt about the above matter.

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