Faced with the mathematical possibility of non-Euclidean geometries, 19th Century
geometers were tasked with the problem of determining which among the possible …

The separate contributions to cosmology of the above researchers are revisited and a
cosmology encompassing their basic ideas is proposed. We study Dirac's article (1938) on …

In the static field configuration, a spatially-Variable Speed of Light (VSL) scalar gravity model
with Lorentz-Poincaré interpretation was shown to reproduce the phenomenology implied …

We consider a preferred-frame bimetric theory in which the scalar gravitational field both
influences the metric and has direct dynamical effects. A modified version (" v2") is built, by …

Gravitation might make a preferred frame appear, and with it a clear space/time separation--
the latter being, a priori, needed by quantum mechanics (QM) in curved space-time. Several …

The argument for the Euclidean nature of space based on the relativity of magnitudes has
been overlooked by contemporary philosophers of physics and mathematics. In the present …

The nature of time, space and reality are to large extent dependent on our interpretation of
Special (SRT) and General Relativity Theory (GRT). In SRT essentially two distinct …

The law for the refraction of a wave when the two fluids and the interface are moving with
relativistic velocities is given in an exact form, at the same time correcting a first order error in …

The validity of the Weak Equivalence Principle relative to a local inertial frame is detailed in
a scalar-vector gravitation model with Lorentz-Poincaré type interpretation. Given the …

The geodesic equations for the general case of diagonal metrics of static, spherically
symmetric fields are calculated. The elimination of the proper time variable gives the motion …