BeeTheory · Foundations · Technical Note XXII
Cavendish Revisited:
The Wave Mass of a Single Sphere
Returning to the simplest case — an isolated spherical mass — this note rebuilds the BeeTheory wave-mass calculation with a properly normalised kernel and a clear dimensional accounting. The Cavendish lead spheres and the Earth itself are used as concrete tests. The conclusion is a sharp scale separation: a galactic coherence length $\ell_0 \sim 1$ kpc makes the wave mass invisible at laboratory and planetary scales, while remaining the operative quantity at galactic scale.
1. The result first
A point mass and its wave field
For an isolated mass $m$, BeeTheory predicts a surrounding wave field whose enclosed mass within a radius $R$ is:
$$M_\text{wave}( where $ell_0$ is the coherence length (kpc-scale) and $lambda$ the global coupling. $M_\text{wave}$ rises from zero at the source to its asymptote $\lambda m$ at $R \gg \ell_0$. Both the Cavendish balance and the Earth’s gravity probe scales 10²⁰ times smaller than $\ell_0$ — so $M_\text{wave}$ is effectively zero everywhere on Earth and in the Solar System.
Physical consequence
The wave mass exists, but it spreads over kiloparsec scales. At the surface of the Earth, the integrated wave mass is $M_\text{wave}(
2. The corrected kernel
In the previous galactic notes (XII–XXI), the wave kernel was written $\mathcal{K}(D) = K_0\,(1+\alpha D)e^{-\alpha D}/D^2$ with an unnormalised constant $K_0$. A clean dimensional accounting requires a normalised form. The kernel that produces a finite, dimensionally correct asymptotic wave mass is:
Normalised wave kernel
$$\mathcal{K}(D) \;=\; \frac{1}{4\pi\,\ell_0^2} \cdot \frac{e^{-D/\ell_0}}{D}$$
This form has dimension $[1/L^3]$ (since $\ell_0$ is a length and the kernel integrand involves $dV$). The convolution definition of the wave density becomes:
$$\rho_\text{wave}(\vec{r}) \;=\; \lambda \int \rho_\text{vis}(\vec{r}\,’) \cdot \mathcal{K}(|\vec{r}-\vec{r}\,’|) \, d^3r’$$
Dimensional check: $[\rho_\text{wave}] = [\text{kg/m}^3] = [\rho_\text{vis}] \cdot [\mathcal{K}] \cdot [dV] = [\text{kg/m}^3] \cdot [1/\text{m}^3] \cdot [\text{m}^3] = [\text{kg/m}^3]$ ✓
The previous $K_0 \approx 0.3759$ is now absorbed into the normalisation factor $1/(4\pi \ell_0^2)$. The free parameters reduce to two only:
| Parameter | Dimension | Role |
|---|---|---|
| $\lambda$ | Dimensionless | Fraction of wave mass to visible mass at $R \to \infty$ |
| $\ell_0$ | Length | Spatial extent over which the wave field deploys around a source |
3. Application to a point mass
For a mass $m$ concentrated at the origin ($rho_text{vis}(vec{r}) = m,delta^3(vec{r})$), the convolution gives the wave-field density directly:
$$\rho_\text{wave}(r) \;=\; \frac{\lambda\,m}{4\pi\,\ell_0^2} \cdot \frac{e^{-r/\ell_0}}{r}$$
The enclosed wave mass within radius $R$ is obtained by spherical integration:
$$M_\text{wave}( $$\;=\; \lambda\,m \cdot \left[1 – \left(1 + \tfrac{R}{\ell_0}\right) e^{-R/\ell_0}\right]$$
This is a clean closed-form expression. The two limiting regimes are immediate:
| Regime | $M_\text{wave}(| Interpretation | |
|---|---|---|
| $R \ll \ell_0$ | $\approx \frac{\lambda}{2}(R/\ell_0)^2$ | Wave field has not yet deployed |
| $R = \ell_0$ | $\approx 0.264\,\lambda$ | About a quarter of the asymptote |
| $R = 3\,\ell_0$ | $\approx 0.801\,\lambda$ | Most of the wave field has formed |
| $R \to \infty$ | $\lambda$ | Full wave mass |
4. Visualisation: where the wave mass sits
Six orders of magnitude separate the regimes
The two solid curves reach their asymptote $\lambda$ around $R \approx 5\,\ell_0$. Below $R \sim 0.1\,\ell_0$, the wave-mass fraction is below $10^{-3}$. Above $R \sim 5\,\ell_0$, it has essentially saturated. In between, it transitions smoothly. For Cavendish ($R/ell_0 sim 10^{-21}$) and the Earth ($R/ell_0 sim 10^{-13}$), we are deep in the “no wave deployed yet” regime — both probes sample wave mass at the level of $10^{-26}$ of $lambda m$, effectively zero.
5. Numerical evaluation — Cavendish and Earth
For a coherence length $ell_0 = 1.59$ kpc ($approx 4.91 times 10^{19}$ m), the value found by fitting the Milky Way alone in Note XX:
| Object | $R$ | $R/\ell_0$ | $M_\text{wave}(| $M_\text{wave}( | |
|---|---|---|---|---|
| Cavendish lead sphere | $0.15$ m | $3 \times 10^{-21}$ | $\sim 5 \times 10^{-42}$ | $\sim 10^{-40}$ |
| Earth surface | $6.4 \times 10^6$ m | $1.3 \times 10^{-13}$ | $\sim 8 \times 10^{-28}$ | $\sim 5 \times 10^{-3}$ |
| Earth–Sun distance | $1.5 \times 10^{11}$ m | $3 \times 10^{-9}$ | $\sim 5 \times 10^{-19}$ | $\sim 3 \times 10^6$ |
| $R = \ell_0$ | $4.9 \times 10^{19}$ m | $1$ | $0.264\,\lambda = 0.026$ | $\sim 1.5 \times 10^{23}$ for Earth |
| $R \to \infty$ | — | — | $\lambda = 0.098$ | $\sim 5.9 \times 10^{23}$ for Earth |
Local measurements are blind to the wave mass
The wave mass contained within the volume actually probed by terrestrial gravity experiments — from a Cavendish balance ($R \sim$ 10 cm) to a satellite orbit ($R \sim 10^7$ m) — is completely negligible. The Earth, as measured locally, is its visible mass: about $5.972 \times 10^{24}$ kg. The full wave mass $\lambda \cdot M_\text{vis} = 5.85 \times 10^{23}$ kg exists, but is spread over $\sim$ kpc and unobservable at any spatial scale humans operate at.
6. Why this is consistent with Newton
The classical Newtonian law $F = G m_1 m_2 / r^2$, validated by Cavendish and by all planetary observations, requires the gravitational mass of each body to be a well-defined number. BeeTheory does not contradict this in any way:
(a) On the small scale $(R \ll \ell_0)$: the wave mass contribution to local gravity is at the $10^{-13}$ level for Earth, $10^{-21}$ for Cavendish. No experiment can detect such a deviation. The Newtonian relation $F = GM/r^2$ holds with $M$ being the visible mass alone.
(b) Spherical symmetry preserves the orbit. The wave mass generated by the Earth is spherically symmetric (because the Earth is). By the shell theorem, an external observer at any distance $r > R_oplus$ sees the Earth’s total mass (visible + the small amount of wave mass enclosed by $r$) acting as a point at the centre. The Moon’s orbit, the planets’, and any satellite trajectory are unaffected by the existence of the spreading wave field — only its enclosed-mass contribution matters, and it is negligible at planetary distances.
(c) The wave mass only matters where it has had room to deploy. The wave field requires distances comparable to $\ell_0 \sim 1$ kpc to fully form. Inside galaxies, where many massive objects ($10^{11}$ stars, gas, etc.) coexist within $\sim \ell_0$ of one another, the wave fields overlap and their cumulative enclosed mass becomes significant. This is where the rotation curves are affected — the topic of Notes XX and XXI.
The scale separation is the key
The same wave-mechanism is dormant on Earth and active in the Milky Way, because the spatial scale at which the wave field deploys ($sim$ kpc) is enormously larger than the scale of human laboratory or planetary experiments. The transition radius is around $R \sim 0.3\,\ell_0 \approx 500$ pc — below which wave effects are negligible, above which they dominate the gravitational budget.
7. The visible mass / wave mass decomposition for Earth
BeeTheory predicts that Earth’s total mass — combining the atomic/baryonic mass and the wave-field mass it has generated everywhere — exceeds the locally measured mass. Specifically:
$$M_\text{Earth, total} \;=\; M_\text{vis} + M_\text{wave}(\infty) \;=\; M_\text{vis} \cdot (1 + \lambda)$$
where $M_\text{vis}$ is the locally measured mass (what Cavendish, satellites, and lunar dynamics report). The decomposition gives:
| Quantity | $\lambda = 0.098$ (MW solo) | $\lambda = 0.203$ (SPARC) |
|---|---|---|
| $M_\text{vis}$ (Earth’s atomic mass) | $5.972 \times 10^{24}$ kg | $5.972 \times 10^{24}$ kg |
| $M_\text{wave}(\infty) = \lambda M_\text{vis}$ | $5.853 \times 10^{23}$ kg | $1.212 \times 10^{24}$ kg |
| $M_\text{total} = (1 + \lambda) M_\text{vis}$ | $6.557 \times 10^{24}$ kg | $7.184 \times 10^{24}$ kg |
| Wave fraction $\lambda/(1+\lambda)$ | $8.9\%$ | $16.9\%$ |
| Visible fraction $1/(1+\lambda)$ | $91.1\%$ | $83.1\%$ |
A different interpretation
There are two ways to read the table above. Interpretation A: $M_\text{vis} = 5.97 \times 10^{24}$ kg is the actual atomic mass, and the wave mass is additional gravitating mass not localised on the Earth. The Earth “has” $1.09 \times M_\text{vis}$ of total gravitating influence, but most of it is far away. Interpretation B: the $5.97 \times 10^{24}$ kg measured locally is already the total of visible + locally-enclosed wave mass, and since the wave-enclosed part is negligible at local scale, the atomic mass is $5.97 \times 10^{24}$ kg. The two interpretations are operationally equivalent because the wave mass at planetary scale is unmeasurable.
8. Summary
1. The BeeTheory wave kernel is properly normalised as $mathcal{K}(D) = e^{-D/ell_0}/(4pi ell_0^2 D)$, giving a dimensionally clean prediction.
2. For a point mass $m$, the enclosed wave mass within radius $R$ is $M_\text{wave}( 3. At Cavendish and Earth scales, $R/ell_0 lesssim 10^{-13}$, so the enclosed wave mass is below $10^{-26},lambda m$ — completely undetectable. 4. The Earth’s visible (atomic) mass equals the locally measured mass to extraordinary precision. The wave mass exists but is spread over the kiloparsec scale. 5. Spherical symmetry of an isolated body guarantees that the wave mass it generates does not perturb the orbits of external bodies — the shell theorem applies to the (spherical) wave field as much as to the visible matter. 6. The wave mass only becomes operationally relevant at scales $R \gtrsim 0.3\,\ell_0 \approx 500$ pc, which is the galactic regime studied in Notes VII–XXI. 7. The parameters of the theory reduce to two: the dimensionless ratio $\lambda$ and the coherence length $\ell_0$.
References. Cavendish, H. — Experiments to determine the density of the Earth, Phil. Trans. R. Soc. London 88, 469 (1798). · Newton, I. — Philosophiae Naturalis Principia Mathematica (1687). Shell theorem. · Yukawa, H. — On the interaction of elementary particles, Proc. Phys.-Math. Soc. Japan 17, 48 (1935). Original screened potential form. · Dutertre, X. — Bee Theory™: Wave-Based Modeling of Gravity, v2, BeeTheory.com (2023).
BeeTheory.com — Wave-based quantum gravity · Single sphere foundations · © Technoplane S.A.S. 2026