understanding of the nature of gravity today is due to the fruitful works
of many scientists whose main aim was to propose another vision that reflects
the realities in which we live. Throughout the history of scientific research,
men have introduced new concepts that have lived to help illuminate mankind's
course in the wilderness of space-time.
Doctor Einstein described gravity
as nothing other than escape velocity. Space-time events are influenced by
gravity in a unique way, that is it curves the whole structure into existence.
Gravity is thus a fundamental ingredient of reality. A gravitational field
is very similar to an electromagnetic field in the way its waves propagate.
The earth's gravitational field draws objects towards its centre. The intensity
of this attraction decreases as we move outwards from the earth's gravitational
field. It is different from the electromagnetic field fundamentally because
objects captured in a gravitational field endure an acceleration which is
not at all connected to the object's mass. All masses are subjected to the
same acceleration in a gravitational field. This signifies that if a man and
his horse are dropped high above the ground at the same moment they will hit
the ground at the same time. They all endure the same velocity. It is described
as an escape velocity because it has no local reality. There is a fundamental
issue here, because it means that if you hit a ball hard enough it can escape
the earth's gravitational attraction. It all depends how hard you hit the
ball. It doesn't matter whether you hit the ball at a vertical or horizontally.
The satellites gravitate around the earth the same way the shuttle blasts
towards space. It all depends on the amount of force needed. Falling in or
out are space time events with opposite coordinates. According to the principle
of relativity the laws and constants are invariant between reference frames.
CONSTANCY AND INVARIANCE
laws of physics are solely based upon the property of invariance. Diffeomorphism
sometimes referred to as "Diff" is a physical scientific concept
introduced by Einstein. It englobes the notion of isomorphism which is the
mapping together of two complex structures onto each other in such a way that
they fit to give us a perfect thought. The notion of diff invariance is applied
so as to validate conflicting theorems in physics. As the laws and constants
in physics and are invariant between reference frames, it follows that measurement
results should be identical in all reference frames. Just like in two different
types of manifolds or vacuum states in interaction to each other. All these
can also be regarded as scalar fields in which we apply the Hamiltonian operator
or matrix. Field theories engulf 'diff ' which is part of a gravitational
field. The main goal is to have a kind of diff symmetry in the whole process.
General relativity is base on gravity and a bridge towards quantum mechanics
has nothing but gravity in mind and there is no way out without quantum gravity.
mechanics is weird science; quantum gravity is both weird and mysterious.
Quantum gravity has a sort of a metaphysical connotation attached to it. It
deals with lengths and masses in quiet a different scale. Space and time at
the Plank's scale is a dimension ruled by mathematical equations, but this
doesn't in way rule out the reality it withholds. The time dilation factor
in general relativity is also present at the small scale structure. It is
a kind of a virtual real world. It's space-time is inconsistent and invariant
in the manifolds. In general relativity, the dimensions space-time are well
determined, but in quantum gravity the 3+1 dimensions presents us with other
dimensions like the length, mass and area. Quantum gravity might be the link
between general relativity and quantum mechanics. It's the core of black hole
physics and can be trace back to the early universe. We belief in the fact
that there exist a kind of symmetry which is indeed non-computable in quantum
gravity and there exist a mathematical truth that is consistent with the classical
world. Einstein's bending of the path of light by gravitational field can
directly be interpreted as an input to the curvature of space time. The understanding
of nature in the sense that uniform acceleration is gravity and that rest
mass is stored energy shows the beauty and reality of this interpretation.
are many theories out there in competition to unveil the final unifying theory.
From strings with it's dimensions to super symmetry or the more promising
loop quantum gravity and what comes next. The string theory describes the
matter in the universe as string-like objects. It presumes everything in nature
is made of strings which is the basics of everything. Strings are in a vibrational
mode with distinct discrete notes. The m-theory is most likely a theory that
unifies. By the way, if different string theories can be unified, we are heading
for one unique theory after all. Confrguration space using stings and loop
as Hamiltonian generalised momentum.
quantum gravity is a very attractive theory in the sense that, it very well
handles the non perturbative quantum field theory. Its a theory that is well
armed for the Planck scale physics and also attached to both quantum mechanics
and general relativity. It is attracting to us because it offers a limit boundary
between QM and GR.
two theories are like physical reference objects 'bolts and knots', if we
put them together. The experience of 'stings in loops' is most likely to be
observed if we consider the manner in which nature operates. With this thought
experiment we can see quiet clearly that Planck scale discrete space-time
dimensions are far greater than the conventional 3+1 in the standard model.
As it is, it seems that we can solve the gut problem with only two stokes.
is only nature that can offer an experiment that points to the inevitable
reality of its forces. It might turn out that an experiment due to the manifestation
of nature itself, would be the most precious model. This might give us a vision
of the unified theory, from nature's point of view. Just like Newton and the
apple. By nature we mean physics and chemistry.