ما تمَاثَلَ وَجْهك وَلَا تَمَاثَلَتْ يَدَاك .. في سبيل موسوعة علمية، الدكتور أحمد ذكي

Your face is not symmetrical, nor are your hands symmetrical..

God's creation is never completely identical

Similarity in the language of the proverb.
Similarity is when something is similar to something.
But symmetry, technically speaking, when it occurs in one thing, means that every part on one side of this thing has its counterpart on the other side, in terms of size, shape, and position.

Your face is symmetrical: one eye is to the right and its sister is to the left. An ear is to the right and a sister is to the left. The eyebrows are two symmetrical eyebrows, right and left.

The nose and the chin, each half is similar to a half, and the two halves are separated by a level that you can imagine cutting the head vertically from front to back, to which we attribute symmetry. The symmetry of the face and what is in it, and the symmetry of the nape.

The human body, its posture, is symmetrical: one arm to the right, one arm to the left, one hand to the right, one hand to the left, the legs are symmetrical, and the feet are symmetrical.

- Non-identical symmetry

And similarity is not identical.
For example, your hands, feet, or ears.
Your right hand, for example, is the same as your left hand. But if you matched them, the little finger of this woman would fall on the thumb of the other, and the thumb of this woman would fall on the little finger of the other.

Stand in front of the mirror and spread your right palm in front of it.
Find a silhouette in the mirror, one that can match your left hand.

The most perfect symmetry is the one between objects and their shadows in the mirror.

- Animal symmetry

If we move away from man to animals, we find in him the similarity we find in man: the wolf. Fish mouse. Even the scorpion and the beetle.

- Symmetry in plants

If we move away from humans and animals to plants, we find symmetry inherent in the layout of its shapes, and the symmetry is most apparent in the flower and in the fruit.

Taking its entire appearance, a flower is more similar to a human being than an animal. The symmetry of these two is attributed to a flat surface that divides them, but the symmetry of the flower and the fruit is attributed to one line, one axis, running vertically through their middle, around which the parts of the flower or fruit are distributed, identically.

Even the sprouting stem and the leaves on it, and even the bush and the tree, and the branches and leaves that we bear, make every effort to make their texture similar, like the flower and the fruit, as long as the sun revolves around them equally.

The goal of creation, in terms of the forms that its creatures take on, is symmetry, attributed to a surface, as in humans and animals, or to an axis, as is often the case in plants.

- Symmetry in inanimate objects

By inanimate objects, we do not mean stone that has been scattered and broken, nor sand that has been blown away and carried away by the winds. But we mean the bodies created: the Earth. the sun . The celestial Venus of the day, Mars and the other planets, the polar star and Sirius. And all the other stars.

The shape that creation aimed for and aimed at creating these bodies is the sphere.

The ball is the most symmetrical shape. Its symmetry is not attributed to a flat surface such as the surface of a mirror, as in humans and animals, nor to its axis as in plants, but to a point, which is the center of the sphere.

These bodies rotate, and rotation is part of a circle, and a circle is the most symmetrical of flat shapes.

Creation aims for uniformity and hardly achieves it

And for something he does not report.
The earth is a ball. For a long time, we thought it was a perfect ball.
Then science shows that it is an exaggerated sphere at its poles. Then science shows after that that it almost formed a ball but did not, and it is closer to the shape of a pear, and the pear is symmetrical, but its symmetry is less than the symmetricalness of a ball. The symmetry of a pear is symmetry about an axis, and the symmetry of a sphere is symmetry about a center.

The similarity between the flower and the fruit is a reality in general, but not a reality in detail. The apple is a ball, but where is it similar to the ball?
And so is the orange. And so is the grape. The symmetry of all other fruits changes from a symmetry attributed to a point (center) or even a symmetry attributed to an axis, to a symmetry attributed to a flat surface. So is the mulberry, so is the olive, and so is the onion.

However, it aims for complete symmetry around a point, and it almost does not work.

- The symmetry in humans is incomplete

When you stand in the mirror and look at your face, you think it is two completely identical halves, and no, no. It is only an apparent similarity, and is not proven by measurement. The intention of creation is clear in that it aims to create two identical halves, but it does not want to reach that point.

You will find that in ninety percent of people, the right half of their faces is more developed than the left half, and the eyebrow of the right eye is higher than the eyebrow of the left, and it is rare for them to be equal in height. The right cheek is lighter and more prominent than the left.

Women go to doctors to have their earlobes pierced and earrings hanging from them. The first thing the doctor does is to make sure that the ends of the two piercings are at the same horizontal level, otherwise he raises one of the two piercings above the other so that the two earrings are level when wearing them. This is what a doctor with experience in these matters told me.

The eyes rarely have the same width. In terms of the power of sight, say that they are equal.

(A photographic experiment proves that the two halves of the face are not symmetrical)

1- A picture of the sun girl as she is. without change
2- An image consisting of half the right side, and a similar made-up half.
3- An image consisting of the left half of the face and a similar made-up half.