deletions | additions       diff --git a/Abstract1.tex b/Abstract1.tex  index fbbd282..43037ef 100644  --- a/Abstract1.tex  +++ b/Abstract1.tex 
...
\section{\begin{enumerate}   \item   \end{enumerate}}  The idea of a “Background Field” of the universe is introduced. It is called “Space-Time Field” because it is possible to construct the Space-Time (S-T) and the particles in it. We will show that the mass is the source of the Space-Time Field, noting that the mass creation has a double consequence: gravity increase (curvature) and space growth (expansion). This allows to formulate a universe model with a variable metric by which some of its fundamental aspects are explained: the Hubble’s law is explained by creating the space (mass), the acceleration of galaxies is the effect of a past with open metric, the age of the universe is the time needed to reaching the flat metric phase (calculated value: 13.82 Gyr) and the dark mass is a consequence of the presence of a background massive-lattice.