Quantum gravity (Planck)

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Simulating gravitational and atomic orbits via rotating particle-particle orbital pairs at the Planck scale

An orbital simulation program is described that emulates gravitational and atomic orbitals at the Planck scale.

By selecting the start co-ordinates on a 2-D plane for each point (unit of mass) accordingly, we can 'design' the required orbits. No other parameters are used. The 26 points orbit each other resulting in 325 point-point orbitals.

For simulating gravity, orbiting objects A, B, C... are sub-divided into discrete points, each point representing 1 unit of Planck mass mP (for example, a 1kg satellite would be divided into 1kg/mP = 45940509 points). Each point in object A forms an orbital pair with every point in objects B, C..., resulting in a universe-wide, n-body network of rotating point-to-point orbital pairs [1]. Each orbital pair rotates 1 unit of Planck length lp per unit of Planck time tp at velocity c (c = lp/tp) in hypersphere space co-ordinates, when mapped over time, gravitational orbits emerge between the objects A, B, C... The basic simulation uses only the start position of each point, as it maps only rotations of the points within their respective orbital pairs, information regarding the macro objects A, B, C...; momentum, center of mass, barycenter etc ... is not required.

Particles are treated as an electric wave-state to (Planck) mass point-state oscillation, the wave-state as the duration of particle frequency in Planck time units, the point-state duration as 1 unit of Planck time (as a point, this state can be assigned mapping coordinates), the particle itself is an oscillation between these 2 states (i.e.: the particle is not a fixed entity). For example, an electron has a frequency (wave-state duration) = 1023 units of Planck time followed by the mass state. The background to this oscillation is given in the mathematical electron model.

If the electron is mass (1 unit of Planck mass) for 1 unit of Planck time, and then no mass for 1023 units of Planck time, then in order for an object composed only of electrons to have 1 unit of Planck mass at every unit of Planck time, will require 1023 electrons. This is because orbital rotation occurs at each unit of Planck time and so the simulation requires this object to have a unit of Planck mass at each unit of Planck time (i.e.: on average there will always be 1 electron in the mass point state). We would then measure the mass of this object as 1 Planck mass (although actually this is the average mass over time). For the simulation program, this object can now be defined as a point (it will have point co-ordinate's at each unit of Planck time and so can be mapped). As the simulation is dividing the mass of objects into Planck mass points and then rotating these points around each other as point-to-point orbital pairs, then by definition gravity becomes a mass to mass interaction.

However as noted each point could comprise 1020 or more particles, the simulation then reduces the point to the sum of individual particle-to-particle orbitals. The H atom is a well-researched particle-to-particle orbital pair (electron orbiting a proton) and so is used as reference. To map orbital transitions between energy levels, the simulation uses the photon-orbital model[2], in which the orbital (Bohr) radius is treated as a 'physical wave' akin to the photon albeit of inverse or reverse phase. The photon can be considered as a moving wave, the orbital radius as a standing/rotating wave (trapped between the electron and proton). It is the rotation of the orbital radius that pulls the electron, resulting in the electron orbit around the nucleus. Furthermore, orbital transition (between orbitals) occurs between the orbital radius and the photon, the electron has a passive role. Transition follows a specific hyperbolic spiral for which the angle component periodically cancels into integers which correspond exactly with the orbital energy levels (360°=4r, 360+120°=9r, 360+180°=16r, 360+216°=25r ... 720°=∞r). Quantization of the atom may therefore be a function of this spiral.

The gravitational orbital is then be considered as the scaling up of the underlying atomic orbitals, the gravitational orbit itself as the time averaging sum of the underlying gravitational orbitals. Gravity is therefore not weaker than the electric force, rather it is stronger at the Planck scale (point-point orbitals rotate faster than wave-wave), its apparent weakness is simply because point-point rotations when mapped over time seldom occur relative to wave-wave in orbitals (the probability of occurrence as the inverse of the gravitational coupling constant). This also means that gravitational orbits as we observe them are time emergent properties of rotating orbitals, at the Planck scale there is no gravity or electric force as commonly understood, the principal difference between gravitational and atomic orbitals is one of scale. There are not 2 separate forces used by the simulation, instead particles are treated as oscillations between the 2 states (electric and mass).



N-body orbitals

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8-body (8 mass points, 28 orbitals), the resulting orbit is a function of the start positions of each point

The simulation itself is dimensionless, to translate to familiar dimensioned gravitational orbitals, we can use the Planck units whereby points (of mass equivalent to Planck mass) are assigned co-ordinates on a 2-D (x-y) plane (representing 3-D space). Every point is then connected to every other point to form a circular orbital pair resulting in a universe-wide n-body network of point-point orbital pairs.

The simulation increments in discrete steps (each step translates to a unit of Planck time), during each step (each unit of Planck time), the orbitals rotate 1 unit of Planck length at velocity c = lp/tp in 4-axis hyper-sphere coordinates.

These rotations are then summed and averaged giving new point co-ordinates. As this occurs for every point before the next increment to the simulation clock (the next unit of Planck time), the orbits can be updated in 'real time' (simulation time) on a serial processor. As the orbitals are circular, the barycenter for each orbital is its center, the points located at each orbital 'pole'.

Although orbital and so point rotation occurs at c, the hyper-sphere expansion [3] is equidistant and so `invisible' to the observer. Instead observers (being constrained to 3D space) will register these 4-axis orbits (in hyper-sphere co-ordinates) as a circular motion on a 2-D plane (in 3-D space). An apparent time dilation effect emerges as a consequence.








Symmetrical 4 body orbit; (3 center mass points, 1 orbiting point, 6 orbital pairs). Note that all points orbit each other.

Simulation

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Each point in the simulation is assigned initial (x, y) 2-D point co-ordinates (representing 3-D space), forming orbital pairs that rotate around each other on a 2-D plane according to an angle β as defined by the orbital pair radius (the atomic orbital β has an additional alpha term).

The total distance travelled, 1 unit of (Planck) length per increment to the simulation clock (1 (Planck) time unit) is given in (x, y, z) co-ordinates, where the (z) axis represents the hypersphere expansion axis.

As the simulation treats each (point-point) orbital independently (independent of all other orbitals), no information regarding the points (other than their initial start coordinates) is required by the simulation.

For n-body orbits, to reduce computation we can use the relative mass, in the earth moon example the earth is 81x more massive than the moon, and so we need only represent the center (earth) with 81 points and the periphery (moon) with 1 point. In the following orbits, 1 point is assigned as the orbiting point, the remaining points forming the 'central' mass. The only distinction being that the central mass points are assigned (x, y) co-ordinates relatively close to each other, and the orbiting point is assigned (x, y) co-ordinates distant from the central points (this becomes the orbital radius). The simulation however treats all points equally, the center points also orbiting each other according to their orbital radius.

After every orbital has rotated 1 (Planck) length unit (anti-clockwise in these examples), the new co-ordinates for each rotation per point are then averaged and summed, the process then repeats. After 1 complete orbit (return to the start position by the orbiting point), the period tsim (as the number of increments to the simulation clock) and the (x, y) plane orbit length lsim (distance as measured on the 2-D plane) are noted.


Key:

1. i; number of 'physical' center points in the orbit (the center mass).

2. j = i*x + 1; number of virtual center points (to reduce computation time, i*x virtual points are added to increase center mass up to j = jmax.

3. jmax; maximum number of mass points per orbital radius.

4. x, y; start co-ordinates for each point (2-D plane).

5. rα; a radius constant, here rα = sqrt(2α) = 16.55512; where alpha = inverse fine structure constant = 137.035 999 084 (CODATA 2018).



Fixed radius, variable mass (2D plane)

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The radius is fixed according to i and , we continuously add mass j (there is only 1 orbiting point) to the center until we reach j = and that radius is now 'saturated'. To add further mass requires increasing radius.

Equations for the 2-D plane:

ratio of mass to maximum mass per orbital radius
, orbital radius
, barycenter
, orbiting point velocity
, orbited point(s) velocity
, orbiting point period
, distance travelled


Simulation data:

length
radius
velocity


Example:

i = 81, j = jmax = 32*81+1 = 2593 (3321 orbitals)

tsim = 58430803.84

lsim = 3528109.12




Fixed mass, variable radius (2D plane)

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The mass is fixed and radius is variable, for example, to model a 1kg satellite to earth orbit will require earth mass/Planck mass = 0.2744 x1033 points and 1kg/Planck mass = 45940510 points. We can reduce calculation by using only relative mass and then use the dimensionless ng to assign the start parameters. For example, from the standard gravitational parameters, the earth to moon mass ratio approximates 81:1 and so we can reduce to 1 point orbiting a center of mass comprising 81 points.


There is 1 orbiting point (distant point) and 81 central points (points in close vicinity)


To calculate ng

= 384400km
= 0.00887m (Schwarzschild radius)
= 17783.25


This gives

= 1445178.5


Converting from dimensionless numbers to SI Planck units using lp and c;

s
m


We can use the actual radius and period to translate between values.

= 27.322 days
kg
days

The above assumes a circular orbit, to form an elliptical orbital we can use unaligned orbitals.



Gravitational coupling constant

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In the above, the points were assigned a mass as a theoretical unit of Planck mass. Conventionally, the Gravitational coupling constant αG characterizes the gravitational attraction between a given pair of elementary particles in terms of a particle (i.e.: electron) mass to Planck mass ratio;

For the purposes of this simulation, particles are treated as an oscillation between an electric wave-state (duration particle frequency) and a mass point-state (duration 1 unit of Planck time). This inverse αG then represents the probability that any 2 electrons will be in the mass point-state at any unit of Planck time (wave-mass oscillation at the Planck scale [4]).

As mass is not treated as a constant property of the particle, measured particle mass becomes the averaged frequency of discrete point mass at the Planck level. If 2 dice are thrown simultaneously and a win is 2 'sixes', then approximately every (1/6)x(1/6) = (1/36) = 36 throws (frequency) of the dice will result in a win. Likewise, the inverse of αG is the frequency of occurrence of the mass point-state between the 2 electrons. As 1 second requires 1042 units of Planck time (), this occurs about once every 3 minutes.

Gravity now has a similar magnitude to the strong force (at this, the Planck level), albeit this interaction occurs seldom (only once every 3 minutes between 2 electrons), and so when averaged over time (the macro level), gravity appears weak.

If particles oscillate between an electric wave state to Planck mass (for 1 unit of Planck-time) point-state, then at any discrete unit of Planck time, a number of particles will simultaneously be in the mass point-state. If an assigned point contains only electrons, and as the frequency of the electron = fe, then the point will require 1023 electrons so that, on average for each unit of Planck time there will be 1 electron in the mass point state, and so the point will have a mass equal to Planck mass (i.e.: experience continuous gravity at every unit of Planck time).

For example a 1kg satellite orbits the earth, for any given unit of Planck time, satellite (B) will have particles in the point-state. The earth (A) will have particles in the point-state, and so the earth-satellite coupling constant becomes the number of rotating orbital pairs (at unit of Planck time) between earth and the satellite;


Examples:

1. 1kg satellite at a synchronous orbit radius

(earth as the center mass)
(Schwarzschild radius)
(synchronous orbit)


2. The energy required to lift a 1 kg satellite into geosynchronous orbit is the difference between the energy of each of the 2 orbits (geosynchronous and earth).

(energy per orbital)
(number of orbitals)


3. The orbital angular momentum of the planets derived from the angular momentum of the respective orbital pairs.

The orbital angular momentum of the planets;

mercury = .9153 x1039  
venus    = .1844 x1041  
earth    = .2662 x1041 
mars     = .3530 x1040 
jupiter   = .1929 x1044   
pluto   = .365 x1039   


Orbital angular momentum combined with orbit velocity cancels ng giving an orbit constant. Adding momentum to an orbit will therefore result in a greater distance of separation and a corresponding reduction in orbit velocity accordingly.





32 mass points (496 orbitals) begin with random co-ordinates, after 232 steps they have clumped to form 1 large mass and 2 orbiting masses.

Freely moving points

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The simulation calculates each point as if freely moving in space, and so is useful with 'dust' clouds where the freedom of movement is not restricted. When measuring the orbit of a single point around a larger mass, after each complete orbit we can note that the orbit period and radius reduces (as a function of center mass and start radius distance).

In this animation, 32 mass points begin with random co-ordinates (the only input parameter here are the start (x, y) coordinates of each point. We then fast-forward 232 steps to see that the points have now clumped to form 1 larger mass and 2 orbiting masses. The larger center mass is then zoomed in on to show the component points are still orbiting each other, there are still 32 freely orbiting points, only the proximity between them has changed, they have formed planets.











8-body circular orbit plus 1-body with opposing orbitals 1:2

Orbital trajectory (circular vs. straight)

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Orbital trajectory is a measure of alignment of the orbitals. In the above examples, all orbitals rotate in the same direction = aligned. If all orbitals are unaligned the object will appear to 'fall' = straight line orbit.

In this example, for comparison, onto an 8-body orbit (blue circle orbiting the center mass green circle), is imposed a single point (yellow dot) with a ratio of 1 orbital (anti-clockwise around the center mass) to 2 orbitals (clockwise around the center mass) giving an elliptical orbit.

The change in orbit velocity (acceleration towards the center and deceleration from the center) derives automatically from the change in the orbital radius (there is no barycenter).

The orbital drift (as determined where the blue and yellow meet) is due to these orbiting points rotating around each other.









Precession

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semi-minor axis:

semi-major axis:

radius of curvature :


arc secs per 100 years (drift):

= 365.25 days

drift =

Mercury (eccentricity = 0.205630)
T = 87.9691 days
a = 57909050 km (n = 378.2734) 
b = 56671523 km (l = 374.2096)
drift = 42.98
Venus (eccentricity = 0.006772) 
T = 224.701 days
a = 108208000 km (n = 517.085) 
b = 108205519 km (l = 517.079)
drift = 8.6247
Earth (eccentricity = 0.0167)
T = 365.25 days
a = 149598000 km (n = 607.989) 
b = 149577138 km (l = 607.946)
drift = 3.8388
Mars (eccentricity = 0.0934)
T = 686.980 days
a = 227939366 km (n = 750.485) 
b = 226942967 km (l = 748.843)
drift = 1.351





Illustration of B's cylindrical orbit relative to A's time-line axis

Hyper-sphere orbit

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An expanding hyper-sphere forms the scaffolding of the `universe'. The hyper-sphere expands in uniform incremental steps (the simulation clock-rate) as the origin of the speed of light, and so (hyper-sphere) time and velocity are constants. Particles are pulled along by this expansion, the expansion as the origin of motion, and so all objects, including orbiting objects, travel at, and only at, the speed of light in these hyper-sphere co-ordinates [5]. Time becomes time-line.

While B (satellite) has a circular orbit period on a 2-axis plane (the horizontal axis representing 3-D space) around A (planet), it also follows a cylindrical orbit (from B1 to B11) around the A time-line (vertical expansion) axis (td) in hyper-sphere co-ordinates. A is moving with the universe expansion (along the time-line axis) at (v = c), but is stationary in 3-D space (v = 0). B is orbiting A at (v = c), but the time-line axis motion is equivalent (and so `invisible') to both A and B, as a result the orbital period and velocity measures will be defined in terms of 3-D space co-ordinates by observers on A and B. In dimensionless terms;

For object B

For object A



Planck force

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a)

b)





Atomic orbitals

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fig 5. H atom orbital transitions from n1-n2, n2-n3, n3-n1 via 2 photon capture, photons expand/contract the orbital radius. The spiral pattern emerges because the electron is continuously pulled in an anti-clockwise direction by the rotating orbital.

In the atom we find individual particle to particle orbitals, and as such the atomic orbital is principally a wave-state orbital, during the orbit the electron is predominately in the electric wave-state, we can however map the mass point-states and so follow the electron orbit, for example, in 1 orbit at the lowest energy level in the H atom, the electron will oscillate between wave-state to point-state approximately 472127 times. During electron transition between orbitals, we find the electron follows a hyperbolic spiral, this is significant because periodically the spiral angle components cancel reducing to integer radius values (360°=4r, 360+120°=9r, 360+180°=16r, 360+216°=25r ... 720°=∞r), and as these correspond precisely with the orbital energy levels, we may speculate that it is this spiral, and not the electron, which quantises the atom [6].













Electron at different n level orbitals

Bohr model

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The H atom has 1 proton and 1 electron orbiting the proton, the electron can be found at fixed radius (the Bohr radius) from the proton (nucleus), these radius represent different energy levels (orbitals) at which the electron may be found orbiting the proton and so are described as quantum levels. Electron transition (to higher energy levels) occurs when an incoming photon provides the required energy (momentum). Conversely emission of a photon will result in electron transition to lower energy levels.

The principal quantum number n denotes the energy level for each orbital. As n increases, the electron is at a higher energy and is therefore less tightly bound to the nucleus (as n increases, the electron is further from the nucleus). Each n (electron shell) can accommodate up to n2 electrons (2, 4, 9, 16, 25...), and accounting for two states of spin, 2n2. As these orbitals are fixed according to integer n, the atom can be said to be quantized.


The basic (alpha) radius for each n level uses the fine structure constant alpha (α = 137.036) whereby;


Such that at n = 1, the start radius r = 2α. We can map the electron orbit around the orbital as a series of steps with the duration of each step the frequency of the electron + proton wavelengths (). The steps are defined according to angle β;


electron (blue dot) moving 1 step anti-clockwise along the alpha orbital circumference

At specific n levels;


This gives a length travelled per step as the inverse of the radius


The number of steps (orbital period) for 1 orbit of the electron then becomes


A base (reference) orbital (n=1)




Photon orbital model

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The electron can jump between n levels via the absorption or emission of a photon. In the photon-orbital model[7], the orbital (Bohr) radius is treated as a 'physical wave' akin to the photon albeit of inverse or reverse phase such that (cancel).

The photon can be considered as a moving wave, the orbital radius as a standing/rotating wave (trapped between the electron and proton). It is the rotation of the orbital radius that pulls the electron, resulting in the electron orbit around the nucleus (orbital momentum comes from the orbital radius). Furthermore, orbital transition (between orbitals) occurs between the orbital radius and the photon, the electron has a passive role.


The photon is actually 2 photons as per the Rydberg formula (denoted initial and final).


The wavelength of the () photon corresponds to the wavelength of the orbital radius. The (+) will then delete the orbital radius as described above (orbital + photon = zero), however the (-), because of the Rydberg minus term, will have the same phase as the orbital radius and so conversely will increase the orbital radius. And so for the duration of the (+) photon wavelength, the orbital radius does not change as the 2 photons cancel each other;


However, the () has the longer wavelength, and so after the () photon has been absorbed, and for the remaining duration of this () photon wavelength, at each transition step the orbital radius will be extended until the () is also absorbed. At each step, as the orbital radius increases, the orbital rotation angle β will conversely decrease, and as the velocity of orbital rotation depends on β, the velocity will adjust accordingly.

For example, the electron is at the n = 1 orbital. To jump from an initial orbital to a final orbital, first the () photon is absorbed ( which corresponds to 1 complete n = 1 orbit by the electron, the orbital phase), then the remaining () photon continues until it too is absorbed (the transition phase).

(n = 2)


After steps, the () photon is absorbed, but the () photon still has steps remaining until it too is absorbed.


orbital transition during orbital rotation

Instead of a discrete jump between energy levels by the electron, absorption/emission takes place in steps, each step corresponds to a unit of ;


As has a minus value, the () photon will shrink the orbital radius accordingly, per step


Conversely, because of its minus term, the () photon will extend the orbital radius accordingly;


The transition frequency is a combination of the orbital phase and the transition phase.


The model assumes orbits also follow along a timeline z-axis, for example, at n=1 (note: the orbital phase has a fixed radius, however at the transition phase this needs to be calculated for each discrete step as the orbital velocity depends on the radius);



Alpha spiral

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The Bohr radius for an ionizing electron (H atom) follows a hyperbolic spiral. At specific spiral angles, the angle components (for this particular spiral) cancel returning an integer value for the radius (360°=4r, 360+120°=9r, 360+180°=16r, 360+216°=25r ... 720°=∞r), and as these angles () define (or perhaps even determine) the principal quantum number n energy levels, this (alpha) spiral can be used to calculate the transition frequencies for each n.

Hyperbolic spiral

A hyperbolic spiral is a type of spiral with a pitch angle that increases with distance from its center. As this curve widens (radius r increases), it approaches an asymptotic line (the y-axis) with the limit set by a scaling factor a (as r approaches infinity, the y axis approaches a).

In its simplest form, a fine structure constant spiral (or alpha spiral) is a specific hyperbolic spiral that appears in electron transitions between atomic orbitals in a Hydrogen atom.


It can be represented in Cartesian coordinates by


This spiral has only 2 revolutions approaching 720° as the radius approaches infinity. If we set start radius r = 1, then at given angles radius r will have integer values (the angle components cancel).

(360°)
(240°)
(180°)
(144°)
(120°)


Starting with (n=1), for each step during transition;


As is proportional to the radius, as the radius increases the value of will reduce correspondingly (likewise reducing the orbital velocity).






Bohr radius during ionization, as the H atom electron reaches each n level, it completes 1 orbit (for illustration) then continues outward (actual velocity will become slower as radius increases according to angle β)

H atom

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The wavelength of the electron in terms of the Rydberg constant = 10973731.568539(55) m−1[8]


In the classical Bohr model, the electron orbits around the barycenter (center of mass) and for this is used the reduced mass (the CODATA proton-electron mass ratio μ = 1836.152673426(32)).

= 1.000544 617 021


However, the (ionization) vs. Rydberg constant shows slight divergence

= 1.000533 776 387


The formula for transition, including the variable term;


We can then determine the precise value for for each energy level using the literature values as reference:

H(1s-2s) = 2466 061 413 187.035 kHz [9]

H(1s-3s) = 2922 743 278 665.79 kHz [10]

H(1s-4s) = 3082 581 563 822.63 kHz [11]




H atom transition (n=1 to n=64); alpha orbital spiral angles (pi) vs transition energies (eV)

Gives for these n levels

n = 2, = 1.000539 387 875

n = 3, = 1.000536 337 888

n = 4, = 1.000535 460 372


A principal quantum number n2 as a function of radius (for any radius) can be used to calculate the transition frequency at each step giving a continuous map (as in the diagram)


Solving for integer n2 values only gives

[12]:

(nf = 2) f = 2466 061 413 187.035 kHz, radius/(2α) = 4;

(nf = 3) f = 2922 743 278 665.790 kHz, radius/(2α) = 9;

(nf = 4) f = 3082 581 563 822.630 kHz, radius/(2α) = 16;

(nf = 5) f = 3156 563 322 099.082 kHz, radius/(2α) = 25;

(nf = 6) f = 3196 750 686 730.957 kHz, radius/(2α) = 36;

(nf = 7) f = 3220 982 537 638.802 kHz, radius/(2α) = 49;






orbital transition frequencies (Rydberg - H) in eV vs spiral angle (pi) for transitions from n=1 up to n=64

We can also map the (continuous) transition energy difference (in eV) between a Rydberg atom (nucleus mass >> electron mass) and the lighter proton (y-axis = Rydberg atom - H atom), and find the H atom, as the electron drifts further from the proton, requires less energy when compared with the Rydberg atom, presumably to which the electron is more tightly bound.



















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References

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  1. Macleod, Malcolm J.; "3. Gravitational orbits emerge from Planck scale n-body rotating orbital pairs". RG. Feb 2011. doi:10.13140/RG.2.2.11496.93445/16. 
  2. Macleod, Malcolm J.; "4. Atomic energy levels emerge from hyperbolic Fine structure constant spiral". RG. Feb 2011. doi:10.13140/RG.2.2.23106.71367/8. 
  3. Macleod, Malcolm; "2. Programming cosmic microwave background for Planck unit Simulation Hypothesis modelling". RG. 26 March 2020. doi:10.13140/RG.2.2.31308.16004/7. 
  4. Macleod, M.J. "Programming Planck units from a mathematical electron; a Simulation Hypothesis". Eur. Phys. J. Plus 113: 278. 22 March 2018. doi:10.1140/epjp/i2018-12094-x. 
  5. Macleod, Malcolm; "1. Programming relativity for Planck unit Simulation Hypothesis modelling". RG. 26 March 2020. doi:10.13140/RG.2.2.18574.00326/3. 
  6. Macleod, Malcolm J.; "4. Atomic energy levels emerge from hyperbolic Fine structure constant spiral". RG. Feb 2011. doi:10.13140/RG.2.2.23106.71367/8. 
  7. Macleod, Malcolm J.; "4. Interpreting Planck scale gravitational orbitals via atomic orbital transitions". RG. Feb 2011. doi:10.13140/RG.2.2.23106.71367/8. 
  8. "CODATA Value: Rydberg constant". The NIST Reference on Constants, Units, and Uncertainty. US National Institute of Standards and Technology. June 2011. Retrieved 2011-06-23.
  9. http://www2.mpq.mpg.de/~haensch/pdf/Improved%20Measurement%20of%20the%20Hydrogen%201S-2S%20Transition%20Frequency.pdf
  10. https://pubmed.ncbi.nlm.nih.gov/33243883/
  11. https://codata.org/
  12. Macleod, Malcolm J.; "4. Interpreting Planck scale gravitational orbitals via atomic orbital transitions". RG. Feb 2011. doi:10.13140/RG.2.2.23106.71367/7.