THE “PARALLEL MIRRORS” EXPERIMENT

Let’s assume, Fig. 1, that we have two identical rectangular mirrors Μ₁ and Μ₂, which are parallel to each other.
In their four corners, the mirrors are supported by four metal rods of a height d, which are vertical to the two mirrors Μ₁ and Μ₂.
In the middle BC of mirror Μ₂ is a plane light source L, which emits a narrow laser beam L₀.
The laser beam L₀ is vertical to the two mirrors Μ₁ and Μ₂ .
In this case, the beam will be continuously reflected between the two mirrors Μ₁ and Μ₂, and always remain vertical to the two mirrors M1 and Μ₂.
Therefore, the mirror Μ₁ will be dark (not lit) on the right and left of the straight line B΄C΄ and the mirror Μ₂ will be dark (not lit) on the right and left of the straight line BC.
Consequently, in the experimental device, only the two straight lines B΄C΄ and BC will be bright.
At this stage, the experimental device of Fig. 1, described above, is motionless in relation to the Earth.

Fig. 1

Next (and while the light source continues to emit the light beam L₀) we place the experimental device on a vehicle moving towards the Earth at high velocity υ (e.g. satellite, spaceship, space shuttle, etc).
After what we discussed above, we now need to ponder the following:
a. If ether doesn’t exist in Nature, (as claimed in the Theory of Relativity), then the beam L₀ will be continuously reflected vertically between the two mirrors Μ₁ and Μ₂, leaving the mirror Μ₁ dark (not lit)(to the right and left) of the straight line B΄C΄, and mirror Μ₂ dark (not lit)(to the right and left) of the straight line BC, as described above Fig.1.
Conversely, if ether does exist in Nature and creates an etherosphere around the Earth (as claimed in the Electrogravitational Theory), then the light beam L₀ will initially shift by a small angle φ₀, Fig.2, i.e.:

where c = the speed of light.
Following that, it will be continuously reflected between the mirrors Μ₁ and Μ₂, at points Α₁, Α₂, Α₃,…Α_ν-1, Α_ν and exit the area between the mirrors Μ₁ and Μ₂.

Fig. 2

Because, however, the angles of incidence and reflection of the light beam L₀ on the two mirrors Μ₁ and Μ₂ are very small, it follows that the number of points Α₁, Α₂, Α₃,…Α_ν-1, Α_ν is very large.

As a consequence of the above, the mirror Μ₁ will be lit on the left of the straight line B΄C΄ and the mirror Μ₂ will also be lit on the left of straight line BC, Fig.1.
Obviously, the part of mirror Μ₁ to the right of the straight line B΄C΄ will remain dark, as will the part of mirror Μ₂ on the right of the straight line BC .
In Fig. 2, D are the parts that are lit.
Therefore, using a photographic camera F or a variety of photometers, we can ascertain whether the mirrors Μ₁ and Μ₂ have been lit, as described above.
 

Note: If we now reversed the direction of velocity υ of the experimental device, then the lit areas of mirrors Μ₁ and Μ₂ would also be reversed. Meaning, the bright parts would be dark, and the dark parts would be bright.

CONCLUSION

By performing the “parallel mirrors” experiment (as described above) we can ascertain whether or not ether does exist in Nature, and from the result we will know, once and for all, which of the two theories is correct: the Theory of Relativity, or the Electrogravitational Theory.
In addition, the “parallel mirrors” experiment, Fig. 1, can be performed when the whole rectangular parallelepiped A = (12345678) is made of a transparent solid or liquid material (e.g. glass, water, etc), with a high index of refraction n (n > 1), where the light beam L₀ is reflected on the two parallel surfaces (1234) and (5678).

The purpose of the above is to give us a greater initial angle , i.e.: