5 papers
Local Cosmology
Ll. Bel
We define the concept of a Maximally symmetric osculating space-time at any event of any given Robertson-Walker model. We use this definition in two circumstances: i) to approximat…
Eppur, si muove !
Ll. Bel
Simple ideas that shed new light on the physics of rotation as it concerns two famous experiments: The Wilson and Wilson, and the Michelson and Morley experiments.
A Hierarchy of Dynamic States of Relaxation
Ll. Bel
We define a hierarchy of dynamic relaxed gas spheres as solutions of the Poisson equation coupled to a hierarchy of approximations of the Liouville equation leading, when this equa…
Do H_0 and q_0 really have the values we believe they have?
Ll. Bel
We present an example where a justified modification of the law of propagation of light in a Robertson-Walker model of the universe leads to an identification of H_0 and q_0 differ…
The Froth of the Universe
Ll. Bel
We consider a model of the Universe based on the equation of state , where is the scale factor. This model behaves as an inflationary Universe from the beginni…