The Maxwell-Heaviside Equations Explained by the Theory of Informatons ()
1. Introduction
Generally, the gravitational field is set up [1]-[4] by a given distribution of—whether or not moving—objects and it is completely defined by a vector field with two components: the “g-field” characterized by the vector
and the “g-induction” characterized by the vector
. These components each have a value defined at every point of space and time and are thus, relative to an IRF O, regarded as functions of the space and time coordinates.
Let us focus on the contribution to a gravitational field of one of its sources: a certain moving mass particle with rest mass m0. More specifically we focus on the contribution of that particle to the flow of g-information at an arbitrary point P in the field. That flow is made up of informatons that pass near P in a specific direction with velocity
and it is characterized by N, the rate per unit area at which these informatons cross an elementary surface perpendicular to the direction in which they move. The cloud of these informatons in the vicinity of P is characterized by its density n: n is the number of informatons per unit volume. N and n are linked by the relationship:
(1)
The definition of an informaton implies [1] [2] that every informaton that passes near P is characterized by two attributes that refer to its emitter: its g-index
and its β-index
. sg, the magnitude of the g-index, is the elementary quantity of g-information. It is a fundamental physical constant.
refers to the state of motion of the source of the informaton and is defined by the relationship
(2)
The informatons emitted by m0 that pass near P with velocity
contribute there to the density of the g-information flow with an amount (
). That quantity is the rate per unit area at which g-information emitted by m0 crosses an elementary surface that, at P, is perpendicular to the direction of the g-indices of the involved informatons. It is the contribution of m0 to the g-field at P. We refer to it as
And the same informatons contribute there to the density of the g-information cloud with an amount (
). That quantity determines at P the amount of β-information per unit volume. It is the contribution of m0 to the g-induction at P and we refer to it as:
In Figure 1, we consider an informaton that is part of the flow of informatons that—at the moment t—passes at P with velocity
. It is completely defined by its attributes
and
. Δθ is its characteristic angle: the angle between the lines carrying
and
that is characteristic for the movement of the emitter.
The infinitesimal changes of N and of n at Q between the moments t and (t + dt) are determined by the spatial change of the density of the flow and the density of the cloud of informations that during that elementary period travels from P to Q. This also applies to the infinitesimal changes of
and
at Q between the moments t and (t + dt): they are determined by the spatial changes of the g-index and of the β-index of an informaton that during that elementary period travels from P to Q.
Figure 1. An informaton moving from P to Q
On the macroscopic level, this implies that there must be a relationship between the change in time of the gravitational field (
) at an arbitrary point P and the spatial variation of that field in the vicinity of P.
The intensity of the spatial variation of the components of the gravitational
field at P is characterized by
,
,
and by
and the rate at which these components change in time by
and
.
From the above it can be concluded that it makes sense to investigate the relationships between the quantities that characterize the spatial variations of (
) and the rate’s at which they change in time.
2.
—The First Equation in Free Space
The physical fact that the rate at which g-information flows inward a closed empty space must be equal to the rate at which it flows outward, can be expressed as [1] [2]:
So (theorem of Ostrogradsky) [5]:
Thus, in vacuum the law of conservation of g-information can be expressed as followed:
1) At a matter free point P of a gravitational field, the spatial variation of
obeys the law:
.
This is the first equation of Maxwell-Heaviside in vacuum.
Corollary: At a matter free point P of a gravitational field
.
Because [5]
(3)
It follows from the first equation of Maxwell-Heaviside that:
1. First we calculate:
.
Referring to Figure 1:
Because an informaton that at the moment t passes at P is at the moment (t + dt) at Q, (with PQ = c∙dt).
So:
And:
(4)
2. Next, we calculate:
.
For that purpose, we calculate the double integral over the closed surface S formed by the infinitesimal surfaces dS that are at P and Q perpendicular to the flow of informatons (perpendicular to
) and by the tube that connects the edges of these surfaces (and that is parallel to
).
is the infinitesimal volume enclosed by S:
Because an informaton that at the moment t passes at P is at the moment (t + dt) at Q, (with PQ = c∙dt) is:
So
And:
(5)
3. Substitution of (4) and (5) in (3) gives:
Or:
(6)
3.
—The Second Equation in Free Space
We refer to Figure 1 and notice that:
and
From mathematics [5] we know:
(7)
1. First we calculate:
because grad(n) is perpendicular to
. Indeed n changes only in the direction of the flow of informatons, so grad(n) has the same orientation as
.
2. Next we calculate:
We calculate the double integral over the closed surface S formed by the infinitesimal surfaces dS = dz∙dy that are at P and at Q perpendicular to the X-axis and by the tube that connects the edges of these surfaces.
Because
is oriented along the Z-axis the flux of
through the planes dz∙dy and dx∙dz is zero, while the fluxes through the planes dx∙dy are equal and opposite. So we can conclude that:
3. Both terms of the expression (7) of
are zero, so
, what implies (theorem of Ostrogradsky) that at a matter free point for every closed surface S in a gravitational field:
We conclude:
2) At a matter free point P of a gravitational field, the spatial variation of
obeys the law:
.
This is the second equation of Maxwell-Heaviside in vacuum. It is the expression of the fact that the β-index of an informaton is always perpendicular to both its g-index
and its velocity
.
4.
—The Third Equation in Free Space
The density of the flow of g-informaton carried by informatons that—at the moment t—passes near P with velocity
(Figure 1) is defined as:
We know that [5]
(8)
1. First we calculate: {
}
This expression describes the component of
caused by the spatial variation of N in the vicinity of P when Δθ remains constant. N has the same value at all points of the infinitesimal surface that, at P, is perpendicular to the flow of informatons. So grad(N) is parallel to
and its magnitude is the increase of the magnitude of N per unit length. Thus, with PQ = c∙dt, grad(N) is determined by:
And:
The density of the flow of informatons at Q at the moment t is equal to the density of that flow at P at the moment (t − dt), so:
And taking into account that:
we obtain:
(9)
2. Next we calculate: {
}
This expression describes the component of
caused by the spatial variation of Δθ—the orientation of the g-index—in the vicinity of P—when N remains constant. (Δθ)P is the characteristic angle of the informatons that pass near P and (Δθ)Q is the characteristic angle of the informatons that at the same moment pass near Q (Figure 2).
Figure 2. Calculation of rot(
)
For the calculation of
we calculate
along the closed path PQqpP that encircles dS:
(PQ and qp are parallel to the flow of the informatons, Qq and pP are perpendicular to it)1
The characteristic angle of the informatons at Q at the moment t is equal to the characteristic angle of the informatons at P at the moment (t − dt), so:
The rate at which sin(Δθ) in P changes at the moment t, is:
And taking into account that
we obtain:
or
(10)
3. Combining the results (9) and (10), we obtain:
(11)
We conclude:
3) At a matter free point P of a gravitational field, the spatial variation of
and the rate at which
is changing are connected by the relation:
This is the third equation of Maxwell-Heaviside in vacuum. It is the expression of the fact that any change of (
)—the density of the cloud of β-information—at a point of a gravitational field goes together with a spatial variation of (
)—the density of the flow of g-information—in the vicinity of that point.
The mentioned relation implies (theorem of Stokes [4]):
The orientation of the surface vector
is linked to the orientation of the path L by the “rule of the corkscrew”.
is called the “β-information-flux through S”.
So, in a gravitational field, the rate at which the surface integral of
over a surface S changes is equal and opposite to the line integral of
over the boundary L of that surface.
5.
—The Fourth Equation in Free Space
Figure 3. An informaton moving from P to Q
We consider again
and
, the contributions of the informatons that—at the moment t—pass with velocity
near P, to the g-field and to the g-induction at that point. Referring to Figure 3:
and
A. Let us calculate
. We know that [5]
(12)
1. First we calculate: {
}
This expression describes the component of
caused by the spatial variation of n in the vicinity of P when Δθ remains constant. n has the same value at all points of the infinitesimal surface that, at P, is perpendicular to the flow of informatons. So grad(n) is parallel to
and its magnitude is the increase of the magnitude of n per unit length.
With PQ = c∙dt , grad(n) is determined by:
The density of the cloud of informatons at Q at the moment t is equal to the density of that flow at P at the moment (t − dt), so:
And
The vector {
} is perpendicular to het plane determined by
and
. So, it lies in the XY-plane and is there perpendicular to
forming an angle Δθ with the axis OY. Taking into account the definition of vectoral product we obtain:
With
:
And, taking into account that
, we obtain:
(13)
2. Next we calculate {
}
This expression is the component of
caused by the spatial variation of
in the vicinity of P when n remains constant. For the calculation of
With dS the encircled area, we calculate
along the closed path PpqQP that encircles dS:
(Figure 4). (PQ and qp are parallel to the flow of the informatons, Qq and pP are perpendicular to it).
Figure 4. Calculation of rot(
)
The characteristic angle of the informatons at Q at the moment t is equal to the characteristic angle of the informatons at P at the moment (t – dt), so:
The rate at which sin(Δθ) at P changes at the moment t, is:
So:
And with
, we finally obtain:
(14)
3. Substituting the results (13) and (14) in (12) gives:
(15)
B. Next we calculate
starting from [5]
and from:
and
We obtain:
Taking into account:
and
we obtain:
or:
Taking into account (6), we find:
(16)
C. From (15) an (16), we conclude:
4) At a matter free point P of a gravitational field, the spatial variation of
and the rate at which
is changing are connected by the relation:
This is the fourth equation of Maxwell-Heaviside in vacuum. It is the expression of the fact that any change of (
)—the density of the flow of g-information—at a point of a gravitational field goes together with a spatial variation of (
)—the density of the cloud of β-information—in the vicinity of that point.
This relation implies (theorem of Stokes [5]): In a gravitational field, the rate at which the surface integral of
over a surface S changes is proportional to the line integral of
over the boundary L of that surface:
The orientation of the surface vector
is linked to the orientation of the path on L by the “rule of the corkscrew”.
is called the “g-information-flux through S”.
6. The Maxwell-Heaviside Equations
The volume-element at a point P inside a mass continuum is in any case an emitter of g-information and, if the mass is moving, it is also a source of β-information. In [1] it is shown that the instantaneous value of
—the mass density at P—contributes to the instantaneous value of
at that point
with an amount
; and in [2] it is shown that the instantaneous value of
—the mass flow density—contributes to the instantaneous value of
at P with an amount
.
It is evident that at a point of a gravitational field—linked to an IRF O—one must take into account the contributions of the local values of
and of
. This results in the generalization and expansion of the laws at a mass free point. By superposition we obtain:
6.1. Equation 1
At a point P of a gravitational field, the spatial variation of
obeys the law:
In integral form:
6.2. Equation 2
At a point P of a gravitational field, the spatial variation of
obeys the law:
In integral form:
6.3. Equation 3
At a point P of a gravitational field, the spatial variation of
and the rate at which
is changing are connected by the relation:
In integral form:
6.4. Equation 4
At a point P of a gravitational field, the spatial variation of
and the rate at which
is changing are connected by the relation:
In integral form:
These are the laws of Heaviside-Maxwell.
In the frame of the gravitoelectromagnetic description of the gravitational phenomena and laws the Maxwell-Heaviside equations describe on the macroscopic level how a gravitational field (
,
) is generated by whether or not moving masses and how spatial and temporal changes of
and
are related. Gravitoelectromagnetism (GEM) was developed by Oliver Heaviside [6] and Oleg Jefimenko [7] as a separate theory expanding Newton’s law referring to the kinetic effects of gravity. They started from the idea that the gravitational field generated by moving mass particles must be analogue to the electromagnetic field generated by moving charges.
7. Conclusion
The mathematical deductions of the laws of Maxwell-Heaviside from the kinematics of the informatons, confirm that these equations indicate that there is no causal link between
and
. Therefore, we must conclude that a gravitational field is a dual entity always having a “field-” and an “induction-” component simultaneously created by their common sources: time-variable masses and mass flows2. The Heaviside-Maxwell equations are consistent with special relativity. Indeed they are analogue to Maxwell’s equations in EM and it is proved [8] that these are consistent with special relativity.
8. Epilogue
The theory of informatons unifies gravitation with electromagnetism. Indeed, with the theory of informatons it is not only possible to explain the phenomena and the laws of gravitation but also those of electromagnetism [3] [4]. It is sufficient to add the following rule to the postulate of the emission of informatons:
C. Informatons emitted by an electrically charged particle (a “point charge” q) at rest in an IRF, carry an attribute referring to the charge of the emitter, namely the e-index. e-indices are represented as and defined by:
1. The e-indices are radial relative to the position of the emitter. They are centrifugal when the emitter carries a positive charge (q = +Q) and centripetal when the charge of the emitter is negative (q = −Q).
2. se, the magnitude of an e-index depends on Q/m0, the charge per unit of mass of the emitter. It is defined by:
where
is the permittivity constant.
1) It follows that a point charge at rest in an IRF O is surrounded by a cloud of informatons carrying, besides g-, “e-information”. Focusing on the e-information, that cloud can be identified as the “electric field” of q, that at the macroscopic
level, is completely characterized by a vector field
. In the definition of
, the factor (
) takes the role that is played by the factor (
) in the definition of
. The laws of conservation of e-information (Gauss’s law) and of the
interaction between point charges at rest (Coulombs law) are the analogues respectively of the law of conservation of g-information and of Newton’s law of universal gravitation.
2) It also follows that a “point charge” q moving relative to IRF O is the source of informatons with two attributes: the e-index
and the b-index :
Thus a moving point charge is surrounded by a cloud of informatons carrying besides e-information also “b-information” or “magnetic information”. That cloud can be identified as the “electromagnetic field” of q. On the macroscopic level it is completely characterized as a vector field always having a field- and an induction component (
and
) simultaneously created by their common sources. In the definition of
the factor (
) takes the role that is played by the factor (
) in the definition of
. Lorentz law regarding the interaction between moving point charges is the analogue of the law regarding the interaction between moving mass particles.
3) The mathematical deductions that in the frame of this article lead to the Maxwell-Heaviside equations that govern the gravitational field, remain valid in the case of the electromagnetic field where they lead to Maxwells equations for
the EM field. The role played by the factor (
) in the case of a mass continuum with mass density
is played by the factor (
) in the case of a charge continuum with charge density
. And the role played by the factor (
) in the case of a mass flow with flow density
is taken over by the factor (
) in the case of a charge flow with flow density
.
NOTES
1The contributions along PQ and qp are equal and opposite. They cancel each other.
2On the understanding that the induction-component equals zero if the source of the field is time independent.