In particular, the existence of a
periodic lunisolar component of 24 hours 50 min could be shown in the movement of a
pendulum, an amplitude approximately 100 million times larger than the amplitude
calculated according to Newton's theory of gravitation, whether or not supplemented by
Einstein's general theory of relativity.
2.2 The experiments of Professor Allais in the field of optics
Poincaré, who, it should be pointed out, is the father of the well known E=mc2 formula
which made Einstein famous with his development of the theory of relativity, said that the
day would come when a Copernicus would make clear the Earth's movement and its position in
Léon Foucault in 1851 had proved the rotation of the Earth,
but the uniform movement of the Earth in its orbit remained to be shown. Christian Doppler
had shown that sound was propagated more quickly in the direction of the wind than in the
opposite direction. One might thus ask whether or not light propagates more quickly in the
direction of this movement.
On the basis of the concept of an ether used as a support for all the
phenomena of physics, Professor Allais, convinced of the existence of this intermediate
medium, wondered whether optical experiments of sightings on sighting-marks could not
confirm what he had already found with pendulums. Thus, in July 1958, he launched such
experiments with optical sightings in two directions.
He quickly noted the amplitudes of optical deviations,
which, considered in themselves, were unexplainable within the framework of accepted
theories. Moreover, he found a remarkable correspondence with the observations of the
Albert Michelson and Edward Morley, in 1887, and especially, Dayton MILLER in
1925, had carried out experiments using large interferometry apparatuses, which
separated a beam of light in two branches, one in the direction of the Earth's movement,
the other perpendicular to it. Then, by joining the beam together, they noted a deviation
from 8 to 10 km/sec.