With parallel, non-charged conducting plates set a distance D apart, only those (electromagnetic) modes which satisfy the plate boundary conditions (vanishing tangential electric field) are permitted to exist. In the interior space this constrains the modes to a discrete set of wavelengths for which an integer number of half-wavelengths just spans the distance D. In particular, no mode for which a half-wavelength is greater than D can fit; as a result, all longer-wavelength modes are excluded, since for these wavelengths the pair of plates constitutes a cavity below cutoff. The constraints for modes exterior to the plates, on the other hand, are much less restrictive due to the larger spaces involved. Therefore, the number of viable modes exterior is greater than that interior. Since such modes, even in vacuum state, carry energy and momentum, the radiation pressure inward overbalances that outward, and detailed calculation shows that the plates are pushed together with a force that varies as 1/D^4. Since in this case the Casimir energy derives from the vacuum, the process constitutes the conversion of vacuum energy into heat, and is no more mysterious than in the analogous gravitational case.

Quantum Mechanics explains the way particles move on the microcosmic scale. Relativity defines how mass moves on the macrocosmic scale, now let me describe to you the manner mass and particles move on what I call the "Midrocosmic" scale, according to the Space Quantum Theory

Particles of light, photons, may be thought of as x, y spherical oscillations of the expanding and compressed vectors of the spacetronic field as light travels in the z direction. The expanding vector is formed as the photon's energy is pushed through the field by the impetus force, which force is generated by the expanding universal spacetronic field.. The compressed vector of the photon's energy is formed by the spacetronic field as the field returns to its normal state of equilibrium. Thinking of the photon as an electromagnetic event, it is this flux of the field that we called the magnetic element in the photon's path, . The compressed state of the photon is the electric element in the photon's path. In its compressed state it momentarily stops and the back pressure forms a spectral line detectable as its wavelength and frequency cycle. The spacetronic field has a mass-spring like property, therefore, the field possesses an elastic as well as an inertia property. The velocity of the light photon being equal to the square root of the fields inflexibility divided by its density aspect, which motion is about 300,000 meters per second.

Each spacetron's natural state of being is that of a standing wave, randomly oriented within its own boundaries, vibrating with the speed of light with an expansion-contraction rate of 1.5E50 cycles per second, with a wavelength of about 2E-42 meters. The spacetron's octahedron shape and the fields action as a whole, forms a carrier wave for the movement of all physical energy.

As visible light passes through the spacetronic field its photon energy circularly expands until all its energy is deployed in the field and then the energy is compressed by the field due to the fields expansion-compression cycle. The photon's spherical x, y oscillations travels through the field in the z direction at about E14 cycles per second having a wavelength of about E-6 m depending on its color. The photon's energy modulates the spacetronic field having a speed of just over 186,000 miles per second.

The spacetron has potential energy, and  an impedance to the photons motion, which is the ratio of the spacetronic field's permeability to its permittibility, thus, restricting the photon's speed to the speed of light. The spacetronic unit's individual random action expands and then compresses as the photon moves in its vector z direction of travel. The field to the photons rear immediately snaps back as the impetus force impinges on the light photon forcing it to expand and move from one position to the next in its straight line path toward infinity. Thus, the photon jogs though the spacetronic field. Electromagnetic and atomic energy gives the spacetronic field directional motion provoked by the impetus force of the expanding field, which expansion impinges on the energy holding it to its form.

When the spacetronic field is occupied with glass or water, light waves slow down since the slow circular motions of the molecular particles moving in the spacetronic field changes the impedance of the field through which the light must pass. In the first place, glass or water molecules don't occupy very much of the spacetronic field, however, they do alter the fields impedance aspect depending on the thermal condition of the mass particles. The field becomes in a more expanded chaotic condition then is the case without the presents of the mass particles, although there is plenty of room for the light energy to pass through, in the case of glass or water.

This impedance aspect of the spacetronic field is dramatically demonstrated by the earth as a whole. For instance, as the earth travels around the sun the leading edge of the earth is forever forced toward the sun and as a consequence the earth is compel to rotate relative to the spacetronic field as it orbits the sun. This was amply demonstrated by an experiment know as the Sagnac effect. This experiment was performed by Georges Sagnac. He sent two rays of light in opposite directions around a turn table. When the turntable rotated clockwise, the light going in one direction arrived at the detector sooner then the ray circulating in the opposite path. However, the reverse becomes true when the table rotates in the counterclockwise direction. Rotating the turntable at about two revolutions a second Sagnac demonstrated that the rotation of the earth could be determined relative to the field. The Michelson- Morley experiments did not discover this rotation effect since their apparatus was stationary, however, their null effect of the difference in the speed of the light rays in various directions, across and against the earth's travel was explained by FitzGerald who gave the reason and Lorence whose equations gave the explanation for what had taken place. The length of the measuring apparatus changed depending on its directional orientation. It shortens in the direction of travel due to the resistance of the field..

As the electric element is force from one position to the next by the impetus force, the spacetronic field expands and contracts in place. This is what we term the electromagnetic flex of the field. This field becomes more prevalent when the electron, a much larger electrical unit then the photon, passes through the field pushed by the impetus force. It even becomes more rampant as atoms passes through the field, also pushed by the impetus force. The atomic conglomerate of particles causes the field to expand in front of it as well as causing spacetronic motion around its body which then contracts on the opposite end forming an endless stream of spacetronic motion. When a number of atoms line up together this field becomes a powerful force, and we call the unit a magnet with a positive and a negative end. You can see the effect of this spacetronic streaming when one magnet opposes another causing the units to move away or to draw close to one another. It lends itself to extraordinary possibilities, which has been a boom to industry.