...But two neutron stars, forming
a binary system, can merge suddently, which would correspond to the hard scenario
of mass transfer to twin universe. Then the throat of the space bridge could
extend at relativistic velocity and devour the majority of the mass, transfering
it in the twin space. Such very violent process would produce strong short duration
gamma bursts, and gravitational waves. In effect, hyperspace transfer reverses
the "apparent mass". The specialist in theoretical physics will find
the justification in the papers devoted to the geometrization of twin universe,
through group theory. As shown for example in a paperpresent in our website the twin universe is CPT symmetric with respect to
our universe. As shown by J.M.Souriau in 1972 [15]
T-symmetry goes with a M-symmetry. Then particules travelling in a "reversed
time stape-time" just give a negative contribution to the gravitational
field. But the extra mass pushed in the twin space is still self-attractive
and can form a compact object, in the twin space, after its transfer there.
...Some remnant mass could stay in place in our
space, now repelled by the transfered mass. This self-attractive material could
be kept at distance by this new "twin neutron star". . Ihave suggested
that "proplyds" could correspond to the remnants of of neutron star,
which was changed into a twin neutron star. So that the twin universe would
contain two kinds of objects. Huge proto-stars and transfered neutron star (or
sprayed transfered gas, due to soft hyperspace transfers). If this idea is true,
black hole would not exist. Some proplyds could be cold. In effect, after a
strong mass transfer, due to the merging of two neutron stars, the mass of the
remnants can be too small to produce any energy, by contraction. The, isolated,
this gas would get cooled rapidly, to the general cosmic owen's temperature
: 2,7°K. Will we find cold proplyds?
...A last remark. After its transfer in twin space,
the (still self attractive) matter is now repelled by any mass present in our
space. For example, in soft transfer, the transfered gas is pushed out of the
galaxy. Considering the hard version of the transfer of matter towards the twin
space (binary neutron star merging) the transfered mass will also be repelled
by any "ordinary mass", including the mass of a cloud in which the
process occured. That's for proplyds could be found out of large massive clouds,
like Orion could.
6 - Technological hyperspace transfer.
...If the constants of physics are strongly modified
by a strong increase of pressure (energy density), we can search how this energy
density increase could be operated, locally. Atoms, molecules, have metastable
states. Helium has a wellknown metastable state. If we gives energy to helium,
a lot of energy can be stored that way.
...Similarly nuclei of atoms have metastable levels.
Imagine a space craft which emits a shell of gas :

Fig.11 : The space craft emits a shell of gas.
...Then wall grasers emits a strong pulse of gamma-rays,
which are absorbed by the nuclei of the gas. If the excitation level is metastable,
the nuclei cannot dissipate this energy and reach criticity.

Fig.12 : A wall-graser emits g-rays whose energy is stored
in a metastable level of atoms.

Fig.13 : 2d analogy : tiny space-bridges form, linking the
two folds Fand F*
( our fold and the twin fold).
.
Fig.14 : The tiny space bridges which formed merge together
along a closed surface.
The cont of this volume and the content of the adjacent volum of the twin space
are exchanged.
..This hole would be filled rapidly by the air.
Isaid that the transfer in the twin universe reversed the "apparent mass".
Then, what happens to the space craft, after its jump in the twin universe.
For the passengers, Earth has dissapeared (photons cannot travel from a fold
to to the other, on geometrical grounds). For terrestrial observers, the space
craft seems to have disappeared too.
...Instead to be attracted by the Earth by gravity,
the space craft is repelled by this "invisible Earth". If the hyperspace
transfer is done again, the craft comes back and falls towards ground. Rapid
alternance of hyperspace transfers would produce "zero gravity effect"
as a result of the two movements (a fall in our fold, and a lift when the craft
is in the twin space). That's my own vision of "antigravitation".
...In addition, this fast change of the sign of
the apparent mass would produce gravitational waves. Space crafts could communicate
with gravitational waves, simply produced by a mass whose presence is radpidly
changed, by local hyperspace transfer.
...Following, a 2d analogy showing this idea of
hyperspace transfer, exchange of the contents of the two folds Fand F*. A a
2d world, a "flatland", a space craft is a closed curve (here figured
by a circle).

Fig.15 : Schematic description of (flat) universe and twin
universe, showing adjacent regions.
...In order to show the curvature
modification, let us cut the plane along the AB line :

Fig.16 : A cut of the figure 15, along the AB line.

Fig.17 : Space begins to bend, along a closed curve.
...We have not figured the emited
gas, which would be located around a circle surrounding our "2d space Craft".
The absorption of gamma-ray energy by atoms, in metastable level, bend space
as indicated. Tiny space bridges form :

Fig.18 : Tiny space bridges form.
...A "geometrical surgery"
occurs, which modifies drastically the connexion between the different portions
of the surface.

Fig.19 : After geometrical surgery.
...The use of different colours makes
possible to show how twin particles (red) have been transfered in the fold F
(supposed ti figure our space), while the space craft and its surrounding air
lies now in the corresponding adjacent portion of this (flat) twin universe
:

Fig.20 : How the different portions of the surfaces (universes)
are now connected.
...Rapidly the molecule of the air,
in our space, fill the available space, while the molecules of air, transfered
inthe twin space, escape. Then we have the following schema. Up : homogeneous
air and space. The space Craft seems to have been "annihilated". Bottom
: the space craft, transfered, cruises in the (very rarefied) twin universe.

Fig.21 : Twin matter has gone away, in our space. Molecules
of air have gone away too, in twin space.
...This does not solve the problem of the travel
towards distant stars, even if the value of the velocity of the laight is fairly
higuer in the twin space. It is somewhat difficult to understand thant the distance
between points are changed too. Consider two diatnt points A and B, as pointed
by an observer which belongs to our space. A' and B' are conjugated points in
the twin space; imape-points. The distance A'B' is shorter than the distance
AB. Then, if the goel is to go from a stellar system to another one, the gain
is double : the distance is shortened and the velocity barrier is larger. But
how to accelerate ? What propeller for our cosmic craft ?
...I Think it might own none.
...In space time, the energy-matter is conserved.
We can "read it" in the Einstein field equation (here with a zero
cosmological constant).
(34)
S = c T
...To any mass at rest we can associate a Compton's
length :
(35)

Fig.22 : Compton's length associated
to a mass, for example a proton.
...Imagine this mass, this particle, belongs to
the set of particles which form the cosmic craft. If transfered in a "smaller
univers" this particle would encounter some "Gulliver effect".
Its size would seem larger for test-particles which normally belong to the twin
space (hydrogen atoms, for example).

Fig.23 : "Gulliver effect".
...This variation in size is the sign of some
energy loss. Hyperspace transfer will be, someday, we hope, modelized through
coupled field equations. More precisely, quantum physics will be involved too,
Ithink. If we look to Einstein equation the divergenceless hypothesis is equivalent
to the conservation of energy matter. Now, if we look at coupled field equations
(36-a)
S = c ( T - T*
)
(36b)
S* = c ( T* - T
)
the divergenceless hypothesis corresponds to the conservation of energy-matter
over the two folds, even when hyperspace transfer is operated. Then we could
derive some idea from this concept of energy-matter conservation. How to transfer
a particle towards a "smaller" universe" (whose gauge factor
Ris smaller) , preserving its energy-matter ?
...Answer : it is possible if the wavelength is
shortened, i.e. if the particle materializes in the twin space at relativistic
velocity.
...Don't ask me more. They are just crude ideas.
How to give to all the particles of the craft (and passengers) the same velocity
? Idon't know. Perhaps acting on the spins before the operation ?
...If this idea is not completely crazy, a craft
could jump into the twin space and appear in it at relativistic velocity. The
journey's duration would not be zero, but possibly greatly shortened. Perhaps
some planetary systems, 10 or 100 light-years distant, could be joined in less
that a year.
