THE THEORY OF GRAVITATION
Here we face the Ultimate Challenge: Explaining the value of G 
as now measured in the year 2000
Copyright, Harold Aspden, 2000
Over the past 40 years I 
have sought to interest the world of science in my theory of gravitation. It is 
a theory based on interpreting the quantum activity which underlies our 
immediate environment and pervades all space. There are energy transitions 
involving what are called 'leptons', constantly occurring, even in the vacuum, 
in an underworld scenario which some physicists refer to as the field of 
'zero-point energy'.
My theory is a comprehensive 'unified field theory' 
in that it explains gravitation as an electrodynamic process and is successful 
in that it allows G, the Constant of Gravitation, to be determined 
quantitatively and qualitatively in terms of the electric charge to mass ratio 
of the electron.
The theory has developed in stages, but its 
phenomenological basis, the link with electrodynamics, stands on the firm 
foundations disclosed in the first edition of 'The Theory of Gravitation' 
published in 1960. I wrote that text in the latter part of 1959 to put my theory 
on record at a time when I had decided to make a career move by joining IBM in 
England as a Senior Manager. I had not opted for an academic university career 
following my Ph.D. research years at Cambridge. Instead I decided to develop 
specialist skills concerning technological innovation and its protection in an 
industrial environment.
The theory of gravitation was of interest to me, 
essentially because my research had shown how the electromagnetic energy we 
associate with magnetic induction is stored in what we term a 'field', whether 
within solid matter or in vacuo. I could see a basis for connecting that with 
the phenomenon of gravitation, but had come to see the need to believe in the 
existence of a real aether, something of a 'taboo' subject in the world of 
academic science. Physicists had come to accept the Einstein doctrine implicit 
in his theory of relativity and the aether has no place in that doctrine. 
'Four-space', a concept that defies visualization in physical terms, had 
displaced the 'aether' and I well knew that, to project my theoretical notions I 
would have to contest territory that was the exclusive province of the 
physicists who were addicted to Relativity.
Over the years, I did update 
the my theory of gravitation as it advanced step-by-step, notably in 1966, 1969, 
1975, 1980 and 1996. [See book titles in list of references]
However, the 
scientific community has remained unconcerned and has seemingly ignored my 
efforts. So, with two new major advances of this the millennium year 2000, the 
one reported in the preceding web page item and that I now present, I venture 
now upon what I presume will be the culminating step, namely the task of 
deriving G, the constant of gravitation, by theory which gives the precise value 
in accord with the 1.5 part in 100,000 precision of the year 2000 measurement, 
which has involved a quantum leap in the degree of experimental measurement 
precision of this very-difficult-to-measure quantity.
Contrary to 
conventional practice, and contrary to the natural and logical path I followed 
in reaching the result, I will present the formulation first and then show how 
it is derived. I want the numbers to point to the underlying physical picture, 
because it is all too easy, if I start by portraying a physical scheme, for the 
unbelieving reader to presume that that I rely on hypothesis and that the 
assumptions implicit in that scheme were deliberately chosen to give the correct 
numerical result.
Of course, even with this approach, critics will be 
critical. They will suggest that I am merely playing with numbers, pressing the 
buttons on a calculator until I find a mathematical relationship that gives the 
right answer. However, I think the mathematical odds against finding the formula 
I present below, as one fitting the known answer, are high enough to upset that 
argument, but you must judge. I can only say that I have been guided by what I 
see as the physics underlying the formulation and believe it portrays how Nature 
regulates the phenomenon of gravitation.
The formula defines the action 
of gravity as a quantum phenomenon, quantum in this case meaning 'as involving 
discrete units of action'. Two distinct quanta are needed, as I shall explain 
later, and these are odd integer numbers that signify a multiple of a unit based 
on the form of the electron. These numerical quanta are denoted A and B, 
respectively.
I shall formulate an expression for the square root of G, 
which I express as Gr, the reason being that I see the action as 
between systems each involving the same two basic quantum units, each such unit 
comprising one A quantum and two B quanta, for reasons that I shall explain in 
detail later. Then, without further ado, I present the formula:
Gr = 
(4π/3)(4.8032x10-10)/(108π)3(A)4(9.10939x10-28)X
where:
X = [1 + 2(A/B)3]/[1 + 2(B/A)]
Now, if you use 
your calculator and substitute the numbers 5061 and 3485, for A and B, 
respectively, you will discover that G has the value 6.67435x10-8 and 
I ask you now to compare this with the latest, year 2000, value of the Constant 
of Gravity G reported in SCIENCE, v. 288, p. 944 (2000), which is 
6.67423+/-0.00009 times 10-11 
N.m2.kg-2.
Note that my derivation, as formulated, 
involves the old-fashioned cgs system of units, as applied to a vacuum assigned 
unity permeability and permittivity. I prefer that because the vacuum is my 
reference base and the numbers are easier to work with if one bases the units on 
that as reference, given that the object is to understand physical phenomena 
occurring in vacuous space, rather than find a convenient way of dealing with 
practical problems by avoiding numerical expressions that put 4π into the 
calculation.
Those G values differ by very slightly more than one 
standard deviation of the year-2000 measurement. That is more than one order of 
magnitude more precise than any previous measurement of G.
So, I claim 
that my formula, as just presented, has something to say about the nature of the 
force of gravity, subject of course, to it having a true physical 
basis.
Well, first of all, if you are astute on matters relating to 
physics, you will already have noticed that the electron charge/mass ratio 
features in the equation for Gr. The charge of the electron in cgs 
esu is 4.8032x10-10 and the mass of the electron is 
9.10939x10-28 gm.
So here is that 'Unified Field Theory' 
connection. The mutual force of electrodynamic attraction between two discrete 
electrical charges separated by unit distance is equal to the product of their 
charge values in esu, if they are moving mutually parallel at the limiting speed 
governing electromagnetic wave propagation in vacuo. That, in physical terms, 
raises certain questions, because we see particles generally as being close to a 
position of rest in the electromagnetic frame of reference. However, note that I 
am using the electron as a unit only. I do not say that gravitation stems from 
the interaction of electrons. Instead, I say that it arises from interactions 
between what I call gravitons, a kind virtual lepton that lives in a world that 
is ever moving at the speed of light, c, relative to the frame occupied by 
matter.
You see, the quantum energy activity underlying everything 
imparts a universal motion to matter (physicists call it the Zitterbewegung), a 
jitter associated with Heisenberg's Principle of Uncertainty. That system of 
matter in motion in an inertial frame defines the local electromagnetic frame of 
reference, and so the material universe would be dynamically out-of-balance 
inertially, were it not for a hidden counterpart system of gravitons moving in 
juxtaposition about the inertial frame. The relative motion, as between 
that graviton system and the matter it balances, is the speed of light c. 
However, we are dealing here with a system that is kept in step by synchronizing 
actions which override certain considerations that govern material particles 
moving linearly at high speed through the electromagnetic reference frame. The 
gravitons do not gain kinetic energy in the context of the relativistic mass 
increase that applies to material particles. I accept that this may seem a 
little complicated, but it is fully explained in my published works and here I 
am intent on justifying the numerical formulation just presented.
The 
formula contains four other quantities, namely 4π/3, 108π, 5061 and 
3485.
As to 4π/3 you can guess that this is the numerical coefficient 
used to derive the volume of a sphere from the radius. So we are concerned with 
units of electric charge that sit within a spherical unit of space, or, 
alternatively, that, as part of a uniformly dense system of charge, are excluded 
from a spherical space.
Note then that 108π appears as a cubed 
expression. This also suggests a volume measure, where 108π is proportional to a 
side dimension of a cubic form. You will further notice that it has the effect 
of very substantially weakening the mutual attraction force implied by the 
interaction of two electrons. However, the force of gravity as based on the 
interaction of two electron masses is still far weaker than that reduction would 
imply. So we look, not to the unit charge of the electron, but rather to the 
unit charge excluded from a spherical form on the basis that the charge density 
is determined by e, the electron charge, as distributed uniformly over a cube of 
size involving that expression (108π)3.
Here I am going to 
digress for a moment to refer to a paper published in Physics Letters, 
41A, 423-424 (1972), which I co-authored with Dr.D.M.Eagles. It was 
entitled 'Aether Theory and the Fine Structure Constant'. The fine-structure 
constant is a numerical quantity linking the three properties of the aether, 
namely c, the speed of light, e, the charge of the electron and h, the symbol of 
the energy quantum, Planck's action constant. Measurement indicates an 
approximate relationship:
hc/2πe2 = 137.0359and, back in 1972, based on the 
development of my theory pertaining to gravitation at that time, I discovered 
the physical basis of this numerical quantity. My formulation was:
hc/2πe2 = 108π(8/1843)1/6
That number 
1843 was determined by an energy minimization argument, subject to energy not 
becoming negative, but with the physical quantity represented by that 1843 
number being the number of electrons and positrons that could fill the volume of 
space occupied by one unit charge particle in the aether. The number had to be 
an odd number. Its value was derived by rigorous analysis from first principles, 
as that paper shows.
The 108π term has the following meaning. The unit 
charge particle sat in a cubic volume of space with its charge balancing the 
opposite polarity of a uniform charge density filling that space. The aether is 
electrically neutral on a macroscopic scale but has electrical structure on a 
microscopic scale, as needed to account for Maxwell's displacement 
currents.
Analysis, based on explaining the energy quantum of the photon 
and deriving the action underlying Planck's radiation law, which includes h, 
told me that the side dimension of a unit cube of space is 72π times the 
classical radius of the electron, the latter being 
e2/mec2 in cgs units. Here you see that 
charge/mass ratio of the electron mentioned above. Now, the so-called classical 
radius of the electron is a notion only. In fact, the correct formulation of 
electron radius is that advocated by J.J.Thomson, which is two-thirds of the 
value of the classical radius. So one can say that the unit cube side of the 
space occupied by one aether charge e is actually 108π times the actual radius 
of the electron. You can, by cubing this quantity, and dividing by 4π/3 obtain a 
measure of the unit volume of a cubic cell of the aether in terms of electron 
volume.
It is, simply, 9,324,644, but one needs to divide this by that 
number 1843 to get a measure of the volume of that unit cube in terms of the 
volume of the unit aether particle that sits in that cube. The result is 
5059.49. That explains how I first began to see something special about such a 
numerical quantity pertaining to the aether. You see, I could work out the 
electrical charge density that filled those cubic units of space, and I 
suspected that units of a spherical particle form in dynamic balance with matter 
would displace a tiny amount of charge owing to their finite volume, and I 
simply worked backwards on the assumption that this would account for gravity to 
estimate the physical size of that particle. I found that, using the J.J.Thomson 
formula, it would have a mass of approximately 5063 times that of the electron. 
Hence my interest when I saw that analysis of the photon by deriving the fine 
structure constant had led me to that 5059.49 quantity.
So I come to that 
5061 term which appears in the gravity formula to a fourth power. The fourth 
power arises because, in electron unit terms, a non-composite particle of charge 
e that is N times the mass of the electron, has a volume that is 1/N3 
that of the electron. Then, since volume determines the electrical charge 
involved, but gravitational action, in the Gr context, is scaled 
according to mass, we need to adjust that by the factor 1/N to obtain 
1/N4 as the appropriate term to use.
Now, why have I used 
5061, rather than 5059 or 5063? This is the real breakthrough in the development 
of my theory, guided now by this new year-2000 report of the latest G 
measurement.
The answer to this is that my theory has evolved in stages. 
Initially I was concerned with how gravity could arise from the influence of 
very tiny masses and yet satisfy the same constant of gravitation that applied 
to large masses. Even the energy content of electromagnetic waves gravitate, 
because we see them deflected in a gravitational field and I say this in the 
firm belief that Einstein is wrong in declaring that this arises because space 
is curved. My case, based on aether theory, is that the aether medium can offer 
the same G response to large systems of mass as it does for tiny units of mass, 
meaning the mass-equivalent of energy. [I note here that I adhere to an 
interpretation of the basis of the formula E=Mc2 as justified 
historically by energy conservation theory in classical electron theory, again 
rejecting the Einstein theoretical doctrine.]
The outcome of these 
considerations led me to picture a graviton system in which a component of unit 
charge of higher mass was partnered by a pair of unit charges of equal mass 
somewhat lower than that of their companion. The idea was that, consistent with 
quantum electrodynamic principles, the charge pair could be leptons which could 
mutually annihilate to vacate space and shed energy as needed should the 
populace of the particles of higher mass have to adjust slightly in volume to 
keep the energy balance and assure that the volume to mass ratio remains 
constant. The latter is essential for G to be a constant.
The simple 
equation governing G is:
G = (σV/M)2where σ is the electric charge density 
filling those cubic cells of space and V/M is the volume to mass ratio of the 
graviton-lepton system that provides the dynamic balance for any matter 
present.
On this basis a mass M sitting at rest in the electromagnetic 
reference frame (the E-frame) has angular momentum owing to its motion about the 
inertial frame (I-frame) and its centrifugal action needs to be balanced by a 
corresponding mass M of gravitons and leptons of a gravitational frame (G-frame) 
moving with that frame in juxtaposed relationship.
So we can determine 
V/M if we know the mass values of the gravitons A and the leptons B in terms of 
units of electron mass. For a system with twice as many leptons B as gravitons 
A, one can calculate the volume V of charge they displace as:
V = (1/A)3 + 2((1/B)3in electron charge 
volume units. Similarly, one can calculate the their combined mass M as:
M = A + 2Bin terms of the unit of electron mass.
The 
ratio V/M becomes:
V/M = [1 + 2(A/B)3]/[(A)4][1 + 
2(B/A)]which one can see has the form needed to justify the remaining 
components of our basic formulation for the value of the square root of 
G.
It follows that we can say that we have here a theory that can account 
for the precise value of G, the Constant of Gravitation, guided by the empirical 
data that A has the value 5061, meaning the graviton has a mass of 5061 times 
that of the electron, and B has the value 3485, which says that the lepton has a 
mass that is 3485 times the electron rest mass.
Now, again I digress, 
this time to explain that there are in physics essentially three basic forms of 
lepton that have mass. They are the (a) the electron, which in my theory has a 
prominent role in the E-frame, as part of matter, (b) the muon, which in its 
virtual form, has a major role to play in my theory by sitting in the I-frame 
and functioning as an omnipresent energy source and (c) the taon (the 
tau-particle), which, in its virtual form, and being the only remaining lepton, 
has to be the lepton form B that sits in the G-frame.
The theory 
developed from the initial calculation of the energy content of the aether 
particle that sits in every cubic cell of the aether. Using the J.J. Thomson 
formula:
E = 2e2/3afor the electron of mass-energy E and 
charge e, a is electron charge radius, but applying this same formula to the 
aether particle, the energy scales by the factor (1843)-1/3 to a 
lower value. Here I am using the fact that the aether particle has a charge 
volume that is 1843 times that of the electron, as I knew from the photon theory 
mentioned above that gave the fine-structure constant. I regarded this energy of 
the aether particle as determining a pressure in the aether medium which 
signified a uniform energy density. Accordingly, I deduced the energy content of 
the unit cubic cell of aether, because I knew, as shown above, that the volume 
of that cell is some 5059.49 times that of the aether particle. Note then that: 
(5059.49)(1843)-1/3 = 412.6656
In energy terms, 
as units of electron rest-mass energy, this is the energy needed to create two 
virtual muons, the leptons of the I-frame. Here was the component building block 
from which Nature creates protons and I did decipher that process by 1975, three 
years after the publication of that Physics Letters paper on the aether 
derivation of the fine-structure constant. It was duly published by the Italian 
Institute of Physics in Il Nuovo Cimento, v. 30A, pp. 235-238 (1975). It 
is entitled: 'Calculation of Proton Mass in a Lattice Model for the 
Aether'. The proton/electron mass ratio was found to be:
1836.1523a value that was one part in two million too high 
according to measurements of that period, but which fitted even closer to the 
eventual measurements using a new direct method rather than merging two 
separately measured quantities.
The next advance relevant to this account 
was the discovery by which I deciphered the process of creation of the tau 
particle. It evolved from a sequence of reactions in which mesons are created, 
the subject of my paper in Hadronic Journal, v. 9, pp. 153-157 (1986). 
The paper is entitled:'An Empirical Approach to Meson Energy 
Correelation' Here I had shown that the common building block, the virtual 
muon, from which protons and tau-particles develop, gave simple formulated 
relationships from which one can deduce that the tau particle has a mass energy 
that is greater than that of the proton by a factor of 
37/12.
This was a curious result, but, given that theoretical 
proton quantity 1836.1523, it told me that the tau particle should have a value 
close to 3485.21 in electron rest-mass energy units. Here, then you can see how 
I arrived at the odd integer value 3485 as used in the above gravity 
formula.
But still, what about that 5061 value? Here I struggled with a 
dilemma for quite a while, given that I had derived that value of 5059.49 from 
basic aether theory and the empirical evidence, also from certain particle decay 
reactions, was telling me that a particle form of that mass in electron terms 
had to exist in Nature, whereas I knew that the 5063 value had a link with 
G.
The latter connection arose because I presumed that such a particle 
existed in the G-frame and worked out that, if it expanded slightly to increase 
a certain amount in volume, that would increase its gravitational effect. I 
argued that it would thereby shed a commensurate amount of energy, which, since 
energy is conserved, would assume material form in the E-frame. The 
corresponding mass added to the E-frame would then have the gravitational 
property set up by the effect of that volume change in displacing charge in that 
G-frame. Now, you can easily work this out yourself. Given a particle satisfying 
the J.J.Thomson formula and having a certain V/M ratio as applies to its whole 
spherical form, how does a small increment of V relate to a change of M? The 
answer is that it is minus three times the V/M ratio.
Now, what this 
means is that, whereas the graviton A in the G-frame can engage in energy 
fluctuations as between itself and matter in the E-frame, and keep things in 
order gravitationally, there has to be a process by which, given a steady state 
matter presence in the E-frame, creation of the latter is accompanied by 
creation of the lepton-graviton form in the G-frame. The latter must comply with 
the V/M ratio. The volume V comes into being as M is created.
This is 
what we see with pair creation and annihilation in quantum-electrodynamics and I 
imagine a scenario where a pair of tau leptons group with a graviton, so that 
the tau leptons can feature in matter creation and annihilation reactions, 
whereas the gravitons serve in regulating minor energy fluctuations.
In 
any event it then becomes possible, owing to that minus three factor, to 
calculate the ratio of the mass g of the graviton to the mass τ of the tau 
particle. The ratio is simply that obtained by solving the equation:
(g/τ)3 - 3τ/g -1 = 0which gives;
g = 1.452627τ
Given adoption of 3485 as the odd integer 
value of B based on the tau mass-energy calculation, one finds, using this 
formula, that g has to be close to 5062.4, but since A must be an odd integer 
and particle creation involves energy requirements that can exceed but not fall 
short of what is required, we need to opt for the next lower odd integer value, 
namely 5061 as the value of A.
Accordingly, I have, in physical terms, 
justified the values of A and B as used in the formulation of G, the Constant of 
Gravitation.
Before ending this summary discourse updating my theory of 
gravity, I need to clarify one important point that has crept into my writings 
over the years.
The question at issue has been the effect of an electric 
charge sitting in a surrounding sea of charge having a uniform charge density σ, 
given that the charge has a significant volume. I knew that the aether has a 
charge density that can be expressed as e/d3, where e is the charge 
of the proton and d is the side dimension of a cubic cell of aether. This 
assumes that the aether particle that sits in that cell and neutralizes that 
charge continuum is a negative charge of magnitude e that we associate with the 
electron. Above we have seen that knowledge of d allows one to calculate that 
charge density and we found that the volume of that cubic cell was 9,324,644 
times the volume of the electron charge or 5059.49 times the volume of that 
aether particle. It follows, therefore, that the effect of a charge e sitting in 
what is, in effect, a hole in the continuum of charge density σ, will exhibit a 
net effect that is modified by the presence of that hole, meaning the absence of 
charge that otherwise would fill the space defined by that hole.
So I 
wondered if the calculation of the value of σ would need adjusting by one part 
in 5059 or so to keep the charge balance. I saw this as implying that I might 
need to increase the value I calculated for G, as a squared effect in terms of 
σ, by a factor of 2/5059, or 0.000395, which was enough to change a G value of 
6.6700x10-8, say, to a value of 6.6726x10-8, which is an 
appreciable difference given that the standard deviation or degree of 
uncertainty recorded for G in tables of physical data was 
0.00085x10-8 until this recent and far more precise measurement of G 
was announced.
It is necessary now to settle this issue. Note, however, 
that it really has little bearing upon the actions of charged particles of 
higher mass than the electron or the discrete aether charge sitting in the cubic 
cell of aether. The σ charge background would affect the electron charge by one 
part in ten million and so affect the fine-structure constant evaluation by 2 
parts in ten million. The G calculation is where we see the primary effect of 
this problem.
Now, we take e as the unitary charge value by assumption 
and without thinking of any background charge continuum effects. Given no charge 
continuum in the background of space and ignoring the reality of Maxwell's 
displacement currents and their need to have a charge source, one can readily 
assume that a proton charge is equal in magnitude to the charge of an electron, 
but opposite in polarity. However, if we say there is that σ continuum present, 
then we should be declaring instead that the net effect in electric and magnetic 
field action stemming from the fundamental unit charges of opposite polarity is 
the quantity to be equated in magnitude. In other words, a positive charge of 
nominal value e and volume V sitting in a positive σ background really has a 
charge value equal to e plus σV because, when offset by the effect of the hole 
it occupies in the continuum charge, it is seen at a distance as having a net 
effect of a charge e. In contrast a negative charge of nominal value -e and 
volume V must really have a charge of minus e plus σV, but will be sensed at a 
distance as having the net charge -e.
Then, when the two charges are 
involved in a mutual annihilation process, given the slightly different values 
of their actual charge, they create a charge residue of 2σV which fills the 2V 
volume of the vacated space.
As to the neutral balance of continuum 
charge and the discrete aether charge sitting in one of those cubic cells of the 
aether, this then gives the relationship:
σ(d3-V) + (-e+σV) = 0from which we see that:
e = σd3
Accordingly, it was rigorously correct to 
use this latter relationship in the formulation of G, without making any 
correction for the finite form of the discrete aether charges sitting in those 
cubic cells of the aether.
REFERENCES
[1] The Theory of Gravitation, 2nd. Ed., (1966) 
[2] Physics without Einstein (1969)
[3] Gravitation 
(1975)
[4] Physics Unified (1980)
[5} Aether Science Papers 
(1996)
********H. Aspden August 29, 2000
If you wish now to see the next Essay in this 2000 series then 
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The 
M-L Converter
