# What is symmetry?

## What Does symmetry Mean

Symmetry , from the Latin symmetrĭa , is the exact correspondence in size, shape and position of the parts of a whole . An example of symmetry is Vitruvian man of Leonardo da Vinci , a work that represents a perfectly symmetrical body.

In his drawing known as The Vitruvian Man, Leonardo Da Vinci represents the ideal proportions and symmetry of the human body.
Symmetry in the drawing
Within the scope of drawing we find the fact that there are five clearly established types of symmetry:

Rotation. It is the turn that every motive experiences repeatedly until it ends up getting the identical position it had at the beginning.
Of despondency. In this case, what is achieved is two identical parts of a specific object after carrying out a 180º turn of one with respect to the other.
Translation. This is the term used to refer to the set of repetitions carried out by an object at an always identical distance from the axis and during a line that can be placed in any position.
Of enlargement. It is used to make it clear that two parts of a whole are similar and that they have the same shape but not the same size.
Bilateral. It is the one that allows a bilateral portrait to be obtained that has an axis of symmetry as a spine. On the sides of this, equal shapes appear at the same distance from him that will be the ones that allow to create this portrait.
There are different types of symmetry in the field of drawing.
The concept in biology
For biology , symmetry is the ideal correspondence in the body of an animal or a plan with respect to a center, a plane or an axis. According to this correspondence, the organs or equivalent parts are distributed in a certain order.
Most multicellular organisms exhibit some type of symmetry. The radial symmetry is defined by a heteropolar axis (having differences at both ends) from which the main planes of symmetry are established. The bilateral symmetry is more common, and defining a body axis along the direction of movement. This allows the establishment of a centralized nervous system and cephalization.

Geometry and symmetry
The geometry indicates that symmetry is exact correspondence in the arrangement of the points or parts of a body or shape relative to a center, axis or plane.
This symmetry can be spherical (it exists under any possible rotation), axial (when there is an axis that does not lead to any change of position in space with the turns around it) or reflective (defined by the existence of a single plane).
The notion in chemistry and in music
Within the field of chemistry, the term symmetry is also used in order to formulate and develop its corresponding theories, studies and research. The molecular symmetry , in this context, is a concept of chemistry that allows predict or explain certain properties of a molecule from its symmetry.
And all this without forgetting that in music, in the same way, we speak of symmetry to refer to what are the structures that the different compositions that have been created by artists have.

Go up