How Compression-Rarefaction Unifies Sound, Electricity, and Light
© 2026 David R. Young — Spectrum Energy Research Foundation · CC BY-NC-SA 4.0
Sound travels through air. Electricity travels through a conductor. Light travels through space. Three domains, three models, three sets of equations. Physics describes each one differently — acoustic waves, electrical current, electromagnetic radiation — as though they are fundamentally separate phenomena. But watch what each one actually does. Air molecules compress and rarefy in place. Electrons in a wire compress and rarefy in place. Something in the quantum field compresses and rarefies in place. The medium is different each time. Is the mechanism?
Sound is the simplest case. A drum skin vibrates. That vibration pushes the air molecules nearest to it. Those molecules push their neighbors. The chain continues outward. The air molecules do not travel from the drum to the ear — they compress and rarefy in place. The vibration travels through them.
The air is the medium — the substance through which the wave travels. Gravity holds the air in place, anchored to Earth (the Base). Every molecule vibrates against its neighbors. The energy moves through the medium as a compression-rarefaction wave.
At the receiving end — the ear — air molecules physically push the eardrum. The wave energy converts back to kinetic motion at the endpoint. The medium that carried the wave also does the physical work at the destination.
Sound requires all three components:
Remove any one:
This is not three descriptions of one thing. These are three distinct requirements, each necessary, none sufficient alone. This principle applies to all energy movement.
Electricity follows the same pattern, but this is not how it is conventionally described.
A generator converts mechanical rotation into electrical waves. The casing is the Base — it holds the stator (the stationary magnet assembly) and rotor (the spinning shaft with magnets) in their correct positions, maintaining the precise gap between them. Without this Base, the stator and rotor would contact, misalign, or fly apart. The Base enables the work.
The rotor's magnet sweeps past a conductor wire. As the magnetic field cuts across the conductor, it pushes electrons along the wire.
The north pole approaching pushes electrons in one direction — compression. The south pole following pulls them back — rarefaction. One complete north-south pass is one wave cycle. Sixty passes per second produces 60 Hz.
The electrons don't race down the wire — they oscillate in place, pushing their neighbors. The wave travels fast; the electrons barely move.
This is analogous to sound — compression-rarefaction through a medium. In a metallic conductor like copper, each atom contributes one outer electron to a shared pool, known as the electron sea. The crystal lattice holds the atoms in fixed positions (the Base). The electron sea is the medium the wave travels through.
Spectrum Energy Research classifies every energy interaction into three stages: Start (where energy begins), Change (where it is redirected or carried), and Stop (where it is received or absorbed). The electron serves two roles depending on where it is in this cycle:
START: The magnet forces electrons to move. The electron is the worker — its physical acceleration converts mechanical energy into wave energy.
CHANGE: Electrons vibrate in place as the wave travels through the sea. The electron sea is the medium — it carries the wave while the lattice holds position.
STOP: At the destination (filament, motor, speaker), the arriving wave energy converts back to electron kinetic motion. Electrons collide with atoms in the filament, producing heat and light. The electron is the worker again.
Remove any one:
The same principle from sound applies here. Three components, all required.
If electricity is compression-rarefaction through the electron sea, then the magnetic field detected near a current-carrying wire needs an explanation that fits this model.
In 1820, Hans Christian Oersted held a compass near a current-carrying wire. The needle deflected. This demonstrated that a magnetic field appears around a conductor when electrons are moving.
The standard interpretation: moving charges create a magnetic field. Maxwell's equations describe the relationship but do not explain the mechanism. "That's what charged particles do" is the conventional answer.
Every atom contains electrons, and every electron carries a built-in magnet. In 1922, Stern and Gerlach proved this by shooting silver atoms through a magnetic field — the beam split cleanly in two, pulled apart by the tiny magnets inside the atoms. These electron magnets are the source of the atom's magnetic field. When the wave passes through the electron sea, it creates regions of higher and lower electron density — compression and rarefaction. At each atom, the local electron density changes. This disturbs the magnetic field of the electron population. The departing electrons change the magnetic field. The arriving electrons change the magnetic field.
A compass held near the wire detects this disturbance at the point where it's positioned. The magnetic field exists wherever the wave is present — it is the local atomic response, not a field stretching from the source.
The magnetic effect travels WITH the compression-rarefaction wave. It is not being independently created at each point. It is not stretching from the source. It is the existing atomic magnetic fields being disturbed in sequence as the wave passes through.
The "magnetic component" of electrical energy is not a separate field being generated by electron motion. It is the atoms' existing magnetic fields responding to the disturbance passing through them. The compass detects the local atomic response, not a separate traveling wave.
A current-measuring instrument clamped around a wire at a fixed point registers a steady value during steady current — because at that point, electrons are continuously entering and leaving in a steady rhythm. The instrument reads the local atomic disturbance, not a separate signal.
Radio is the key transition case. Like electricity, radio starts with electrons oscillating — in an antenna rather than a generator circuit. But the wave then leaves the antenna and travels through open space. No conductor. No atoms. No electron chain.
Radio waves reach satellites, space probes, and Voyager at over 15 billion miles. They travel through space where there are no atoms.
Up to this point, every wave required a medium — air for sound, the electron sea for electricity. If radio travels through empty space, either the mechanism changes... or the space isn't empty. Something must be there to compress and rarefy.
It is proposed that the quantum field is that medium.
The quantum field is not "empty space." Its existence has been demonstrated through measurable effects — for example, two metal plates placed very close together in a vacuum are pushed toward each other by a force that should not exist if the space between them were truly empty.⁴ If the field exists, it has substance. If it has substance, it can compress and rarefy. The mechanism continues.
The field has two measured properties that confirm its character as a medium:
Permittivity: How the field responds to electric disturbance. Permeability: How the field responds to magnetic disturbance.
These are properties of a medium. Air has acoustic impedance. Copper has electrical impedance. The quantum field has impedance — approximately 377 ohms, calculated from its permittivity and permeability. This value has been measured at radio and microwave frequencies and is constant across all tested ranges.
The speed of light confirms it: the wave speed is determined entirely by these two properties of the medium — the field's electric response and its magnetic response.⁵ This is exactly how the speed of sound is determined by the density and elasticity of air.
Just as atoms in a conductor have existing magnetic fields that respond to electron compression-rarefaction, the quantum field has existing magnetic character (permeability) that responds to the passing compression-rarefaction wave.
The "magnetic component" of an EM wave in space is not a separate field being generated by the wave. It is the quantum field's magnetic response to the compression-rarefaction passing through it — exactly as the atomic magnetic response is detected by a compass near a wire.
"Electromagnetic" may describe one phenomenon measured two ways: the compression-rarefaction (called "electric") and the medium's magnetic response to it (called "magnetic"). Not two fields leapfrogging. One wave, and the medium reacting.
Impedance and coupling are not the same thing. They need to be separated clearly before going further.
Impedance is the ratio of the electric field to the magnetic field in a wave. In the quantum field, this ratio is approximately 377 ohms. It has been measured at radio and microwave frequencies and found to be constant. The research does not challenge this measurement.
Coupling is how strongly a wave interacts with the structure of the medium it travels through. This is a different question entirely. A wave can pass through a medium without noticing its structure, or it can interact with that structure strongly — and which one happens depends on the relationship between the wavelength and the scale of the structure.
Think of a fishing net. A whale passes through the ocean without noticing the net — its scale is too large for the mesh to matter. A tuna hits every strand. The ocean's "impedance" (its resistance to movement through water) is the same for both. But the net's coupling with each one is completely different, because the mesh size matches one and not the other.
The quantum field has structure at some smallest scale. The question is: what happens when a wave's wavelength approaches that scale?
Every medium shows frequency-dependent coupling between a wave and the medium's structure:
In every observable medium, shorter wavelengths couple more strongly with the medium's structure. The medium doesn't change. The wave's relationship to the structure changes.
If the quantum field is a real medium with structure, the same pattern should apply:
Radio: Wavelength vastly larger than the quantum field's smallest structural scale. The wave passes through without interacting with the structure. Minimal coupling. Radio travels enormous distances with little energy loss.
Visible light: Intermediate wavelength. Moderate coupling with the field's structure. Light travels well but measurably weakens over cosmological distances.
Gamma: If this pattern holds, gamma's wavelength — close to the quantum field's smallest structural scale — would couple strongly with the field's structure during travel. Stronger coupling would mean more energy exchanged with the medium per unit distance. Gamma from distant cosmic sources is disproportionately rare at Earth, though this has not been experimentally separated from other known causes (source rarity, intervening matter). No controlled experiment has yet tested for frequency-dependent coupling with the quantum field's structure at gamma wavelengths.
The measured impedance of the quantum field may remain constant across all these frequencies. What changes is how much the wave notices — and interacts with — the structure of the medium during travel.
This extends the coupling principle from Research Note 004. That note established that frequency determines what structures a wave couples with at its destination (coupling domain). This note adds: frequency also determines how strongly a wave couples with its own medium during travel.
A wave can lose energy not only at its destination but along its entire path, proportional to how closely its wavelength matches the structural scale of the quantum field. Coupling works in both directions — with the target and with the carrier.
The tired light hypothesis (Zwicky, 1929) proposed that photons lose energy through interactions during travel, producing the observed cosmological redshift instead of cosmic expansion. Tired light has been ruled out by multiple independent measurements:
These measurements are facts. The research accepts them.
However, there is a separate, narrower question that the tired light evidence does not address: does the quantum field's structure produce any frequency-selective weakening at all — even if it is far too small to account for cosmological redshift?
This is a different question from tired light. Tired light proposed a single mechanism replacing expansion entirely. Frequency-selective coupling proposes that different frequencies interact differently with the field's structure during travel — a property of the medium, not an alternative cosmology. The two hypotheses produce different observational signatures:
Whether the quantum field's structure produces any measurable weakening during travel is an open experimental question. It does not depend on whether tired light was right or wrong.
| Property | Sound | Electricity | EM in Space |
|---|---|---|---|
| Source Base | Drum shell, floor, room | Generator casing | Antenna mount |
| Medium Base | Earth (gravity holds air in place) | Crystal lattice | Quantum field structure |
| Load Base | Ear canal, room walls | Filament socket, motor frame | Target structure mount |
| Medium | Air molecules | Electron sea | Quantum field |
| Mechanism | Compression-rarefaction | Compression-rarefaction | Compression-rarefaction |
| What compresses | Air density | Electron density between atoms | Field energy density |
| Magnetic response | None (air has no magnetic property) | Atomic magnetic fields disturbed | Field permeability responds |
| Kinetic worker at endpoints | Air molecules push eardrum | Electrons collide with filament atoms | Not yet identified — see Open Question 4 |
| Coupling with medium varies by frequency | Yes (treble weakens faster) | Yes (high frequency forced to thinner layer) | Predicted yes (not yet measured across full spectrum) |
| Speed determined by medium | Yes: density and elasticity of air | Yes: properties of conductor | Yes: permittivity and permeability of field⁵ |
Every energy system follows this pattern: three Bases (source, medium, load), one medium, one wave. The source Base enables the START. The medium Base enables the CHANGE. The load Base enables the STOP. All three are required.
The mechanism is the same in every case. What changes is the medium and its Bases. The medium determines the speed, the coupling behavior, and the control materials required. The Bases hold everything in position. The wave is always compression-rarefaction.
Does the quantum field's structure produce measurable frequency-selective weakening? If gamma weakens faster than radio over the same distance through vacuum — independent of source intensity — this confirms that coupling with the field's structure varies by frequency.
What is the smallest structural scale of the quantum field? At what wavelength does coupling with the medium's structure become significant? This would define the transition point where travel losses begin to matter.
Does cosmological redshift include any component from medium coupling? If the quantum field provides even vanishingly small frequency-selective coupling at visible wavelengths, it would accumulate over billions of light-years. This is testable — frequency-selective weakening produces different signatures than both expansion and tired light, and is not ruled out by the evidence that ruled out tired light.
What is the kinetic worker at gamma frequencies? In electricity, electrons do the physical work at endpoints. In sound, air molecules do. What does the physical work when gamma couples with a target? If the nucleus or nuclear polariton (nuclei oscillating in phase within a crystal lattice, passing energy from one to the next), this identifies the material to engineer for gamma control.
Is "electromagnetic" one phenomenon or two? If the magnetic component always comes from the medium rather than the wave, then EM radiation is compression-rarefaction with a magnetically-responsive medium. The "electro-" and "magnetic" descriptions may be two measurements of one event.
This note establishes that the research's core principle — every band gets its own optimal path — has a physical basis deeper than engineering convenience. Each frequency band couples differently with its medium, encounters stronger or weaker coupling with the medium's structure during travel, and requires different control materials because the medium responds differently at each wavelength.
The missing control vocabulary for gamma is not an isolated problem. It is the natural consequence of working at a frequency where (1) coupling with the medium's structure is predicted to be strongest, (2) the kinetic worker at endpoints operates at nuclear rather than electronic scale, and (3) no engineered medium (equivalent to a conductor for electricity or a waveguide for light) has yet been developed.
The solution path is the same one that worked for electricity: identify the kinetic worker, characterize the medium, develop materials that provide the right coupling at the right frequency, and build the control vocabulary one role at a time.
¹ Supernova time dilation. Type Ia supernovae are exploding stars that brighten and fade in a predictable pattern. When observed at great distances, the pattern is stretched — a supernova that takes 20 days to fade nearby takes 40 days to fade at twice the distance. This time stretching matches what cosmic expansion predicts (the space between us and the supernova stretched while the light was traveling, stretching the signal in time). If photons were simply losing energy during travel without expansion, the timing would remain unchanged.
² Blackbody spectrum. A blackbody is any object that absorbs all energy hitting it and re-emits it in a smooth, predictable curve determined only by its temperature. The Cosmic Microwave Background (CMB) — radiation left over from the early universe — has the most precisely measured blackbody curve ever observed. Any mechanism that randomly removes energy from photons during travel would distort this curve away from its smooth shape. The curve is undistorted.
³ Baryon acoustic oscillations. In the early universe, matter and radiation were locked together in a hot, dense state. Pressure waves (sound waves) rippled through this material, creating regions of slightly higher and lower density. When the universe cooled enough for matter and light to separate, those density ripples froze in place. Today, galaxies are slightly more likely to be found at specific distances from each other — the size of those ancient ripples. The measured spacing matches expansion predictions.
⁴ Casimir effect. When two uncharged metal plates are placed extremely close together in a vacuum (within nanometers), they experience a measurable force pushing them together. This occurs because the quantum field between the plates is constrained — fewer vibration modes can fit in the narrow gap than exist in the open field outside. The imbalance produces a net force. This was predicted in 1948 and measured in 1997. It demonstrates that the quantum field has real, measurable substance even in the absence of matter.
⁵ Speed of light from medium properties. The formula is c = 1/√(ε₀μ₀), where ε₀ is permittivity (electric response) and μ₀ is permeability (magnetic response) of the quantum field. The wave speed is entirely determined by these two measurable properties of the medium — just as the speed of sound is determined by the density and elasticity of air.
© 2026 David R. Young — Spectrum Energy Research Foundation
Licensed under CC BY-NC-SA 4.0 for research and education. Commercial use requires a separate license from Spectrum Energy Research Foundation. Contact: secharts@proton.me