Greetings ladies and gentlemen,

The spacetime has four dimensions.
The universe, up to where we know experimentally, also has four
dimensions.
The matter always has three spatial dimensions (volume) and exists in
the time, the energy always occupies a volume of space and exists in
the time, then both you have four dimensions.
The absolute vacuum, in the sense of lacking both of matter and of
energy, cannot exist, since there is no way of isolating the gravity
of a volume of spacetime, for what we know experimentally and for the
most rigorous remarks of the astronomers.
The relative vacuum, which at least contains gravity, is therefore
also four dimensions.
There does not exist absolutely any (measurable) example of objects of
our universe that have the number of dimensions, different from four.
According to Euclides it is not possible to construct:
A) objects with spatial dimension 1, by means of the mere sum of
objects of dimension spatial equal to zero,
B) objects with spatial dimension 2, by means of the mere sum of
objects of dimension spatial equal to 1,
C) objects with spatial dimension 3, by means of the mere sum of
objects of dimension spatial equal to 2,
D) if you agree with me not is possible, to create a temporal
dimension by the mere sum of objects of the physical dimensions 0, 1,
2 ó 3. Fundamentally, because they do not exist except as a
mathematical abstraction.
The paltry element of our universe has to be four dimensions, a volume
of space that exists in the time.
To calculate your value we use the fundamental constants of the
nature, c, h, y G like Planck was already doing one century ago, so
that they give us a temporal volume, so that you are clearer, a unit
of wealth, that is to say a volume during a unit of time.
G * h * c^2 = 4,920 551 532 664 910E -55 cm. ^ +3 Sg. ^-1.
System Cegesimal (centimeter, gram, second)
Since we know, the universe is isotrópico, that is to say, you do not
have spatial favorite directions, you present in any direction the
same aspect and properties. The distinctions that we do between
length, breadth and high place are merely semantic and only they try
to distinguish that there are three, but we can exchange to will your
names and they keep on representing the same physical reality.
If we join the isotropy to the elementary and paltry unit of the
universe, this you can be only a sphere, for motives I satiate clear,
to little that we reflect on it.
To the being a sphere we can calculate the radio = 4,897 506 921 037
260E-19 centimeters, that is the paltry distance and all distance is a
multiple Nature (N) of this one.
This distance is covered at the speed that of light in 1,633 632 464
842 480 E-29 Second. Interval of paltry time, and any temporal
interval is a multiple Nature (N) of this one.
To the being the paltry distance, you have to be the paltry
wavelength, with which we can calculate the maximum energy of a
quantum event = 253,177 660 585 902 TeV. (Tera_electrón_Voltio), and
any quantity of energy and wavelength there are multiple Natures (N)
of these.
For the equivalence between mass and energy, only we have to divide
for c^2 and can calculate the value of the elementary paltry mass =
4,512 946 783 762 060 E-19 grams
The only thing that I have made different from Planck is to consider
to be fundamental a Volume / time and not the length, the mass and the
time separately and with a dimensional different formula for each of
them.
I believe and wait, about without being more speculative than Mister
Planck.
Thanks for your kind attention.

Rafael