# A Model of a Five-Dimensional Universe

As a result of the special theory of relativity, space and time have lost their absolute nature and have been merged into a four-dimensional space. However, even with this relativistic perspective, not everything is relative - light is given a unique status with a constant speed, denoted by "c," in every system of reference. This maximal speed is also the limit for any physical entity in the universe. Additionally, quantum mechanics has revealed a dual nature for both light and material particles, allowing them to be viewed as either waves or particles. These new concepts and their accompanying conceptual difficulties have resulted in significant scientific controversies, as well as a few perplexing paradoxes. To tackle these complexities, consider seeking assistance from a reliable essay writing service such as essaywriterhire.com.

## What about the Speed?

Given the duality between light and material particles, it seems logical to
expect some similarities in the behavior of these different entities. Since the
speed of light is constant in every system of reference, it is natural to assume
that this would also be the case for material entities. The speeds of all the
physical entities would not necessarily be the same, but this speed would be
a constant for a given category of physical entities.

The above considerations are evidently incompatible with the status of
the space-time in the special theory of relativity and different concepts are
necessary to implement these hypotheses. A model of an universe taking into
account these previous remarks has already been introduced in a previous paper (See [MFDIM]). We recall here its main aspects with a few modifications
and new points of view.

## Dimension Issue

Enlarging the number of dimensions of the universe under consideration
is one way to allow us to take into account the assumption of a constant speed
for every category of physical entities. This is done with the introduction
of a fifth dimension besides the usual dimensions of space and time. The
physical entities are classified into different categories, the entities belonging
to the same category having the same constant speed. Two categories of
physical entities are considered in particular: the entities called material
whose constant speed is c and the entities called energetic whose constant
speed is √
2c. By identifying material and energetic entities respectively with
matter and light, several consequences of these assumptions will be developed
now. Let us remark that in this model, space and time have an absolute
character. The new dimension plays naturally a particular role, especially in
the interpretation of the dynamics of time. Note also that with this model,
the results associated with the special theory of relativity are obtained and
interpreted in a different way .